Pawel Jaloszynski

University of Wrocław | WROC · Museum of Natural History

Platypsyllus castoris is closely associated with beavers and displays a unique set of structural specializations. We document the morphology of adults with modern techniques, and interpret evolutionary changes linked with the specific life style. The small subfamily Platypsyllinae has evolved an entire suite of features correlated with a more or le...

Pselaphinae is a large subfamily, comprising over 10 000 species of the megadiverse Staphylinidae (rove beetles). A remarkable feature of this group is the extreme structural diversity of different body regions, especially the head and its appendages. Within Pselaphinae, Clavigeritae stand out as a clade of highly specialized myrmecophiles. We exam...

Within the West Palaearctic region, the subgenera Psomophus and Eupentarius can be easily distinguished from Euconnus s. str. based on the antennal, pronotal and male genital structures. However, in other regions, described and undescribed species of Euconnus can be found that show intermediate features between these three subgenera. This problem i...

The head anatomy of Pselaphus heisei (Pselaphitae) is described and documented. The structural features are evaluated in comparison with findings presented in earlier studies on the subfamily, with a special focus on correlations with predacious habits and the groundplan of Pselaphinae. We found the tentorium, labrum, maxillary palps, shape of head...

Clavigeritae is a group of obligate myrmecophiles of the rove beetle subfamily Pselaphinae (Staphylinidae). Some are blind and wingless, and all are believed to depend on ant hosts through feeding by trophallaxis. Phylogenetic hypotheses suggest that their ancestors, as are most pselaphines today, were free‐living predators. Morphological alteratio...

The diagnostic characters of Scaphium Kirby and its members are discussed and illustrated, and data on their distribution and natural history are summarized. Scaphium ferrugineum Reitter, 1880 is placed as a junior synonym of S. castanipes Kirby, 1837.

Six Eastern Palaearctic species of the Euconnus taiwanus group are known to occur in Taiwan, China and Japan. Four more species are described based on specimens collected in China: E. (s. str.) baoshanus sp. nov. (Yunnan), E. (s. str.) pseudobaoshanus sp. nov. (Yunnan), E. (s. str.) tianmushanus sp. nov. (Zhejiang), and E. (s. str.) pingbianensis s...

Twelve species of Cephennomicrus Reitter are currently known to occur in Japan, and four of them inhabit Okinawa Island. One more Okinawan species, Cephennomicrus tenebrosus sp. nov. is described. A new record of C. japonigenus (Jałoszyński & Hoshina) on Kyushu is given, and new collecting sites of the endemic Okinawan C. nagoanus Jałoszyński are r...

The occurrence of Euconnus subgenera Cladoconnus and Tetramelus in China is recorded for the first time, with ten new species. Euconnus pingpong sp. nov. and E. sagittarius sp. nov. are placed in Cladoconnus, and eight species are placed in Tetramelus: E. punctator sp. nov., E. aurilobatus sp. nov., E. magnirufus sp. nov., E. tetraspinosus sp. nov....

Fifty species of Stenichnini that occur in Madagascar, Comoros and Mascarenes are currently placed in Horaeomorphus L.W. Schaufuss. Twenty-eight of them have been originally described as Horaeomorphus, twenty as Euconnus Thomson subgenus Anthicimorphus Franz (subgeneric name later synonymized with Horaeomorphus), one as Cyrtoscydmus Motschulsky (sp...

Two new species of Veraphis Casey are described, based on specimens collected in China: V. shaanxiana sp. nov., and V. dabashana sp. nov. These discoveries increase the number of Chinese Veraphis species to eight. A distribution of Veraphis in China and comparison of aedeagi of all species are given to facilitate identifications.

Nandius Coulon was known as a Himalayan and sub-Himalayan genus, and is currently comprising four species distributed in Nepal and northern India. The first species from Yunnan, a subtropical region of China, is recorded, with description of Nandius yunnanicus sp. nov. Issues related to identification of Nandius, Pyxidicerus Motschulsky, and Parapy...

A new species of Cenomanian Stenichnini is described, based on an inclusion in Myanmar amber: †Loeblitoides latus sp. nov. As a close relationship between †Loeblitoides and the extant genera Syndicus Motschulsky, Loeblites Franz, and Horaeomorphus Schaufuss was postulated, we used 3D visualization techniques based on micro-computed tomography to se...

Occurrence of Euconnus pragensis Machulka in Wrocław, Poland (Coleoptera: Staphylinidae: Scydmaeninae). Only one confirmed record of Euconnus pragensis is known so far from Poland. A rich new collecting site in the Pilczycki Forest within the city of Wrocław, SW Poland, is reported, with ten specimens found on merely two occasions in 2018 and 2024.

Eudesis Reitter is a Mediterranean endogean endemic genus comprising four species known to occur on Sardinia, and one in the coastal region of Spain. The first species found in continental Italy is described, Eudesis tenuissima sp. n., and compared with remaining members of the genus.

The genus Keratodegnathus Pace includes two species known to occur in Malaysia (Sabah and Pahang). A third species, Keratodegnathus javanicus sp. n. is described, based on a female specimen from Indonesia (West Java Province). As the morphology of Keratodegnathus was previously inadequately described, a detailed scanning electron microscopy examina...

The cephenniine genus Pomphopsilla currently comprises twelve nominal species distributed in Burundi, DR Congo, Kenya, Rwanda and the Seychelles. Three new species are described, all based on specimens collected in Togo: P. spinosa sp. n., P. bifurcata sp. n. and P. klotoensis sp. n. The distribution of Pomphopsilla is summarized.

Five species of Eutheiini are known to occur in Taiwan, all belonging to the genus Eutheia Stephens. Two new species are described: Eutheia clepsydra sp. n., and Paraneseuthia spinipes sp. n. The discovery of the first Taiwanese species of Paraneseuthia, geographically not surprising, as several species occur in the south-western Ryukyuan islands,...

Leptomastax Pirazzoli includes 25 species mainly distributed in the Mediterranean region. Leptomastax minutissima sp. n. is described, based on a male collected in northern Israel. This is the smallest member of this genus known so far, with the body length merely 1.13 mm, and it belongs in a group of eyeless species with a strongly reduced pattern...

Seven nominal species of Cephennomicrus Reitter are currently known to occur in the Philippines: three species have been recorded from Luzon, three from Palawan, and one from Leyte. The occurrence of this genus on Mindanao is reported for the first time, with three new species described: Cm. apoensis sp. n., Cm. candalaganus sp. n., and Cm. talonoe...

Loeblites is a small genus of Oriental Scydmaeninae, currently comprising only five species distributed in Thailand, Malaysia (Sabah), China (Yunnan), and the Philippines (Mindanao). Loeblites anaiensis sp. n. (Sumatra), L. umphangensis sp. n. (Thailand), L. pseudominor pseudominor sp. n. (Borneo, Thailand), and L. pseudominor sumatrensis subsp. n....

Tribasodes kamedai Nomura, 2012 was described based on specimens collected in a limestone cave in Okinawa-jima Island. We demonstrate that this species is not a strict troglobite, but presumably a trogloxene, as it was recently collected in new localities from forest leaf litter and hollow trees. Tribasodes kamedai is redescribed in detail, with th...

The genus Nogunius Jałoszyński so far includes five species distributed exclusively in Japan: N. aogashimanus Jałoszyński (Aogashima, Izu Islands), N. fukuuzanus Jałoszyński (Okinawa Island), N. kerri Jałoszyński (Ishigaki Island), N. sokani Jałoszyński (Okinawa Island), and N. sagaensis Jałoszyński & Nomura (Kyushu). A discovery of Nogunius in Tai...

Palposcydmus yelamalai, gen. et spec. n. is described, based on specimens collected in Kerala, India. The new species is one of the smallest known scydmaenines, with the body length reaching merely 0.53–0.59 mm. Although in dorsal aspect resembling Microscydmus Saulcy & Croissandeau, Palposcydmus clearly differs in the presence of hypostomal suture...

Among Afrotropical genera of Osoriini, Madegassosorius Scheerpeltz is exceptionally poorly defined. Although later authors maintained this genus, they restricted its diagnostic features and distinguish it from the apparently highly similar Mimogonellus Fagel merely by the structure or presence of the lateral pronotal carinae and the elytral adsutur...

The Comoé National Park (CNP), located in the north-eastern part of the Ivory Coast, is strongly influenced by the river Comoé, which is eponymous for the park. Gallery forests along the river, forest islands, open grasslands, bush and tree savannas of various densities offer diverse habitats that harbor both forest and savannah praying mantis spec...

A new tribe, Wowini Jałoszyński, Maruyama & Klimaszewski, trib. n., based on a new genus, Wow Jałoszyński, Maruyama & Klimaszewski, gen. n., is established to accommodate an extraordinary new species of aleocharine rove beetles, Wow assingi Jałoszyński, Maruyama & Klimaszewski, spec. n. The species was recently discovered in Yunnan, China. It shows...

A morphological study of the Western Palaearctic genus Leptocharis Reitter revealed remarkable differences between L. microphthalmus Meybohm and all remaining congeners. This species is the only Eurasian member of Stenichnini with the mesocoxae not separated by the mesoventral process. A new genus, Turkocharis gen. n., is proposed to accommodate L....

The following new taxa of Eucinetidae with semisuctorial and suctorial mouthparts are described: Bisayodes Wakimura & Jałoszyński gen. n., Bisayodes hure Wakimura & Jałoszyński, sp. n. (Hokkaidô, Japan), and Tohlezkus uminchu Jałoszyński, sp. n. (Okinawa-jima, Japan). New records are given for Tohlezkus rufus (M. Sakai) (Honshȗ, Shikoku and Kyûshû,...

The recently established Euconnus taiwanus group within Euconnus s. str. includes six species known to inhabit Taiwan, China and Japan. Two more members of this group are described based on specimens collected in eastern China (Zhejiang Province): E. (s. str.) bibaculoides sp. n., and E. (s. str.) mimicus sp. n.

A new genus of Cephenniini, Papuamicrus gen. n. (type species Papuamicrus globosus sp. n.) is described based on specimens collected in Papua New Guinea. The new genus belongs to the ‘Cephennomicrus group’ of genera and is characterized by a highly ‘reductive morphology’ of the dorsum, lacking pronotal pits and elytral foveae, but having uniquely s...

To date, twenty species and subspecies of Arthromelodes Jeannel were known to occur in Japan, distributed in Honshȗ, Kyȗshȗ, Shikoku, Yakushima, and Amami Islands. No species have been recorded from central or southwestern Ryȗkyȗ. Arthromelodes tokushigei sp. n., the first species known to inhabit Okinawa Island of the central Ryȗkyȗ is described....

Up to date, Eutheimorphus Franz & Löbl included a sole species known from a holotype male collected in Sabah, Borneo. An occurrence of this enigmatic and extremely rare genus in Thailand is reported, and Eutheimorphus thailandicus sp. n. is described. Among diagnostic characters are unique grooves on the head and a symmetrical (in contrast to stron...

Two new scydmaenine species are described based on specimens collected in Taiwan: Stenichnus (s. str.) bifurcatus sp. n., and Stenichnus (s. str.) totoroides sp. n. New records are provided for Stenichnus totoro Jałoszyński (Japan: Iriomote-jima and Ishigaki-jima), S. bellulus Jałoszyński (Taiwan; Japan: Iriomote-jima, Ishigaki-jima, and for the fi...

To date, only one species of the nominotypical subgenus of Syndicus Motschulsky was known to occur in Sumatra. A second species, Syndicus (s. str.) minimus sp. n., is described, based on males and females collected in Aceh, North and West Sumatra provinces. The new species is remarkably small-bodied and has conspicuously punctate elytra. An updated...

Only one (recently discovered) nominal species of the eutheiine genus Paraneseuthia Franz is known to occur on the largest Ryukyuan Island of Okinawa-jima, while five other members of this rare genus inhabit Ishigaki-jima, Shikoku, Kyushu and Honshu. Undescribed species known from females only have been collected also on southwestern Iriomote-jima...

To date, Obesoconnus Jałoszyński is known to occur in French Guiana, Mexico and Costa Rica. Here, two new species, O. asymmetricus sp. n. and O. pallidus sp. n., are reported to occur in Thailand. Scydmaenine genera showing a similar distribution are discussed, and since the ‘Alloraphes/Stenichnodes group’, to which Obesoconnus belongs, is known to...

Records of 24 Curculionoidea species new for the Biebrza Basin in Northeastern Poland, including the Biebrza National Park and its buffer zone, are provided as a result of field studies in 2021-2022. Three more weevil species, unique or rare in Poland, were rediscovered in the Biebrza Basin after nearly 20 years, including Anthonomus rubripes GYLLE...

A new genus and species, Percussiopalpus inusitatus Hlaváč & Jałoszyński gen. n. et sp. n. of the tribe Thaumastocephalini is described and illustrated, based on specimens collected in the Asian part of Turkey (Balıkesir Province). The discovery of a free-living pselaphine species morphologically closely resembling the obligate cavernicolous Thauma...

To date, the stenichnine genus Rutaraphes Jałoszyński includes only two species: R. shikokuensis Jałoszyński (Japan) and R. taiwanicus Jałoszyński (Taiwan), both known from a single holotype male. Consequently, Rutaraphes can be placed among the rarest Palaearctic genera of Scydmaeninae. Three males of this remarkable genus were found recently duri...

Peplomicrus nidicola sp. n., a new rove beetle species of the subfamily Micropeplinae is described and illustrated based on a series of males and females collected from nests of New World blackbirds (Icteridae) in northern Ecuador. It is the eleventh nominal species of this genus and the eighth known to occur in the Neotropical realm. A modificatio...

To date, five species of the Australo-Oriental genus Syndicus Motschulsky have been discovered in India, although the true distribution of one of them (the type species of the genus) remains unclear, as the only known specimen comes from “Indes orientales”, a large historical area that also included territories outside the Indian subcontinent. Two...

To date, Mexiconnus Jałoszyński was a monotypic genus known to occur in Chiapas, Mexico. The sole species, M. mexicanus (Franz), was unique among Stenichnini in having strongly broadened protarsi with a conspicuous setal cushion on the ventral side of the protarsomere 1. A new species, M. triops sp. n., is described, based on a male collected in ce...

We document external and internal thoracic structures of the free‐living pselaphine beetle Pselaphus heisei (Pselaphitae) using a set of traditional and modern techniques. Like in the specialized myrmecophile Claviger testaceus (Clavigeritae), the skeletal elements of the pro‐ and pterothorax are highly compact, with largely reduced inter‐ and intr...

To date, Forinus Kurbatov included only two species, known to occur in the Russian Far East: Primorye and Kunashir Island of the Kuril archipelago. Forinus mirus sp. n. is described, based on specimens collected on the subtropical island of Okinawa Island, Japan, ~2,000 km south of the nearest previously known locality of this genus. Morphological...

Edaphus nagugushikuensis sp. n., a new Japanese rove beetle species of the subfamily Euaesthetinae is described and illustrated based on a male specimen collected in the northern region of Okinawa-jima, Okinawa Prefecture, Japan. It is the 56th species of Edaphus Motschulsky known to occur in Japan, and the sixth known to inhabit the largest Ryukyu...

The coccinelloid (Cucujiformia) family Murmidiidae is revised. Thirty-four species (including sixteen new) in four genera (incl. one new) are recognized: Botrodus championi Slipinski (Mexico), Botrodus dufaui Grouvelle (Caribbean), Botrodus estriatus Casey (Nearctic, Caribbean), Botrodus montserratensis sp. n. (Caribbean), Murmidius araguanus sp. n...

To date, twenty-seven valid species names in the Stenichnini genus Euconnus Thomson have been recognized in the fauna of Japan. The present paper summarizes the current knowledge of Japanese Euconnus, and for the first time properly illustrated redescriptions of E. debilis (Sharp), E. dulcis Sharp, E. fustiger (Sharp), E. impar Sharp, E. japonicus...

Scydmaenus (Mascarensia) kasuganus Franz is the only nominal species of its subgenus known to occur in Japan. The only known specimen (holotype male) has been inadequately described, and later redescribed in an even more unfortunate way, after its fragile and unique aedeagus had been partly damaged. Therefore, the ‘redescription’ that not only cont...

Euconnus (Tetramelus) melkei sp. n. is described, based on a male specimen collected in the Eastern Cape province of the Republic of South Africa. This species is characterized by the most elaborate and extensive male sexual dimorphic features known in Euconnus, comprising glandular projections and impressions that cover most of the head dorsum, st...

The genus Nogunius Jałoszyński was proposed to accommodate four species distributed exclusively in Japan: N. sokani Jałoszyński (Okinawa Island), N. aogashimanus Jałoszyński (Aogashima, Izu Islands), N. kerri Jałoszyński (Ishigaki Island), and N. fukuuzanus Jałoszyński (Okinawa Island). A female of an undescribed species collected in mainland Japan...

New records of Ontholestes haroldi (EppElshEim) in Poland (Coleoptera: Staphylinidae). Ontholestes haroldi has been previously recorded in Poland based on single findings published in 1926 and 2018, within Mazowiecka Lowland and Eastern Beskidy Mts, respectively. Two new records are presented, in Eastern Sudety Mts and Bieszczady Mts. Remarks on id...

Despite being among the most species-rich extant animal genera, Euconnus Thomson is rare in fossil record. Merely six species found in relatively young, Eocene and Oligocene ambers have been placed in this genus, which currently includes over 2,600 extant nominal species distributed worldwide. We describe †Euconnus nathani sp. n., the first extinct...

In previously published parts of this long-term study, subgenera Napochus Thomson and Pycnophus Casey of Euconnus Thomson were tentatively maintained, based on detailed morphological examination of their type species. Since then, many more species have been studied, including several hundred nominal Euconnus s. str., Napochus, and Pycnophus spp., a...

Ptilium modestum has been previously recorded in Poland based on a single finding published in 1927, within the region of Lower Silesia. Two new records are presented, one confirming the occurrence of this species in the same south-western area of the country, the other representing the first record for the Wielkopolska-Kujawy Lowland. Remarks on i...

Ceramphis Casey is the only genus of Scydmaenini restricted to North America. Despite previous redescriptions of the only included species, C. deformata (Horn), not all taxonomically important structures have been illustrated, and consequently morphological affinities with other Scydmaenini genera remain unclear. Ceramphis deformata is redescribed...

Status of some species and names in Cephenniini is clarified. Cephennium ovatum Nietner is transferred to Cephennodes resulting in Cephennodes (incertae sedis) ovatus comb. n.; Cephennodes zwaluwenburgi Zimmerman is placed in the nominotypical subgenus; Cephennium felicitas Scott is transferred to Pomphopsilla Jałoszyński, resulting in Pomphopsilla...

Afroboganium wakefieldense sp. n. is described, based on a series of specimens collected in KwaZulu-Natal, South Africa. An updated key to identification of all six currently known Afroboganium Endrödy-Younga & Crowson species is given. The hindgut of dissected specimens was tightly packed with pollen grains, confirming feeding on flowers. However,...

The cephenniine genus Pomphopsilla currently comprises seven nominal species distributed in Kenya, DR Congo and the Seychelles. Four new species are described: P. punctata sp. n. (Rwanda), P. cyanguguana sp. n. (Rwanda), P. kivuana sp. n. (DR Congo), and P. burundiana sp. n. (Burundi). Key characters of each species are illustrated, and the distrib...

The subfamily Ostomopsinae of Cerylonidae is revised. Six nominal species are recognized and described or redescribed: Ostomopsis cudak sp. n. (Thailand), O. kuscheli sp. n. (New Caledonia), O. neotropicalis Lawrence & Stephan (USA: Florida; Mexico: San Luis Potosi, Veracruz; Panama, Cuba, Hispaniola, Jamaica, Guadeloupe, Montserrat), O. solitaria...

Cephennomicrus Reitter of the Philippines is exceptionally poorly known, with only four nominal species recorded so far, two on Luzon, one on Palawan, and one on Leyte. Three more new species are described: C. palawanicus sp. n. (Palawan), C. impressus sp. n. (Palawan), and C. lagunensis sp. n. (Luzon). The latter species is unusual among all conge...

Type specimens of the type species of Allonapochus Franz, Dimorphoconnus Franz, Eupentarius Reitter, and Myrmecodytes Croissandeau were examined. As a result, Allonapochus is placed as a junior synonym of Napochus Thomson; Dimorphoconnus is placed as a junior synonym of Tetramelus Motschulsky; Euconophron Reitter is placed as a junior synonym of Eu...

Six new species of the cephenniine genus Hlavaciellus Jałoszyński are described: H. cincinnalis sp. n. (Malaysia: Sabah); H. carinatus sp. n. (Malaysia: Pahang); H. microtuberculatus sp. n. (Malaysia: Pahang); H. diversipilosus sp. n. (Malaysia: Pahang); H. concavus sp. n. (Indonesia: Sumatra); and H. sumatranus sp. n. (Indonesia: Sumatra). An upda...

In insects, a long ductus ejaculatorius surrounded by a muscular sheath transfers seminal fluids and sperms from the testes into the male copulatory organ, the aedeagus. In several unrelated coleopteran families, a section of the ductus has evolved to form a specialized pumping organ. The most complex forms of this ‘sperm pump’ was known in Lepicer...

Most species of Scydmaenus Latreille described by Herbert Franz are impossible to identify without re-examination of the type material. The Chinese fauna is no exception and it is easy to find specimens whose aedeagi resemble those illustrated by Franz, but the only way to identify them is to directly compare new material with types. On the other h...

Horaeomorphus Schaufuss is an easily identifiable genus of Stenichnini, predominantly distributed in the Australasian realm. Many scydmaenines occurring in other regions, however, have been misplaced in Horaeomorphus, and therefore the true distribution of this genus remains unclear. In previous studies several new genera were established for Austr...

The pselaphine Bergrothia saulcyi shows features seemingly linked with life in deep soil layers, such as greatly reduced and non‐functional compound eyes, a sensorium of long tactile setae, long appendages, and flightlessness. However, the tiny beetles occur in forest leaf litter, together with a community of beetles with wings and well‐developed e...

The endemic New Caledonian Brachyglutini genus Baraxina is revised. Seventeen species are recognized, of which sixteen are newly described: B. francoisi Raffray, 1886; B. amieuana sp. n., B. grimbacheri sp. n., B. kanakorum sp. n., B. rutai sp. n., B. aoupinica sp. n., B. asymmetrica sp. n., B. burwelli sp. n., B. dzumacana sp. n., B. jenisi sp. n....

The egg, all three larval instars, and pupa are described for the cucujoid beetle species Monotoma (s. str.) testacea Motschulsky, which develops in decomposing plant matter. Adults and larvae were fed with baker’s yeast under laboratory conditions; this food source allowed for successful breeding of several generations. Detailed and illustrated de...

Ten species of Cephennomicrus are currently known to occur in Japan, predominantly in the Ryūkyū Archipelago. These extremely small beetles (adults of Japanese species do not exceed 1.2 mm) are rarely collected, and their true diversity may be in fact much greater. Two more species are described in the present study: C. aji sp. n. inhabiting Okinaw...

Scydmoraphes yunnanensis Jałoszyński shows several unusual characters as for a member of this broadly distributed Palaearctic genus. Discovery of this species in a new locality and several newly available specimens allowed for detailed morphological study. As a result, a new genus, Sinonichnus gen. n., is established to accommodate Sinonichnus yunn...

External and internal structures of the thorax of the myrmecophile beetle Claviger testaceus (Clavigeritae, Pselaphinae) were examined and documented with state-of-the-art visualization techniques. Following a general trend in the omaliine lineage (Staphylinidae), the skeletal elements of the pro- and pterothorax in Claviger reach a maximum degree...

Leptoplectus kijimunaa Jałoszyński & Nomura, sp. n. is described, based on a series of specimens collected on Okinawa Island, Japan. Morphological structures of the new species are illustrated in detail and compared to known characters of all remaining 14 congeners. As the diagnosis of Leptoplectus remains unclear, character variability within know...

Stenichnini of the Nearctic region include twelve genera, of which two are cosmopolitan, two Holarctic, and eight are known only in North America. Morphological structures and taxonomic placement of most of them have been subjects of recent studies, with exception of Brachycepsis Brendel and Taphroscydmus Casey. Because the depository of the type m...

Rutaraphes Jałoszyński was proposed for an unusual species discovered on Shikoku, Japan. Rutaraphes shikokuensis Jałoszyński has a unique aedeagus, with an asymmetrical median lobe, lacking parameres, and the diaphragm to which the internal muscles are attached is situated not sub-medially, sub-basally, or basally, as in most genera of Stenichnini,...

Two species of the featherwing beetle genus Discheramocephalus Johnson are known to occur in Madagascar. One of them is known from females only, and some important morphological structures have never been described and illustrated, including details of male genitalia. Morphology of the male of D. bisulcatus Darby is illustrated and described for th...

Over a half century ago, Stenichnus barnevillei (Reitter) was ‘redescribed’ by Herbert Franz based on misidentified specimens, in fact belonging to an undescribed species. A year later the misidentification was discovered, and the name Stenichnus goriciensis was proposed for this species. The holotype was rediscovered only recently, and as a result...

Siamitoides carinatus gen. sp. n. is described, based on a male specimen collected on Sumatra. The new genus superficially resembles the Oriental Siamites in the shape of head, which in lateral view is subtriangular, with the highest site above the antennal fossae and the flat vertex gradually declining posterad up to the neck region. Among world S...

Five hitherto known species of Venezolanoconnus Franz are distributed in Colombia, Costa Rica, and Venezuela. This number is doubled by describing V. meridanus sp. n. (Venezuela), V. minimus sp. n. (Venezuela), V. bejumanus sp. n. (Venezuela), V. colombianus sp. n. (Colombia), and V. ecuadoranus sp. n. (Ecuador). All nominal species occur within th...

Four new species of the eutheiine genus Paraneseuthia Franz are described: P. libanica sp. n. (Lebanon), P. rugosa sp. n. (Papua New Guinea), P. olszanowskii sp. n. (Indonesia: Sumatra), and P. acehiana sp. n. (Indonesia: Sumatra). Paraneseuthia libanica is the second known Mediterranean (and western Palaearctic) species of this predominantly Austr...

Three new species of the Oriental genus Marcepania Jałoszyński are described: M. halva sp. n. (Sumatra), M. krowka sp. n. (Sumatra), and M. daifuku sp. n. (Thailand). Previously Marcepania was known from Borneo, Malay Peninsula and Palawan. A female of M. halva was disarticulated to verify its generic placement and its fine structures are illustrat...

Porophila Dybas was so far represented by four nominal species distributed in USA (Oregon) and the Russian Far East (Primorsky Krai). The first Afrotropical species, P. chakalaka sp. n. is described, based on specimens collected in the western region of Republic of South Africa. The new species is associated with fruiting bodies of the Polyporaceae...

Ten hitherto known species of Elacatophora L. W. Schaufuss are distributed in the Malay Peninsula, Borneo and Java. Four newly described species expand the known genus range to Sumatra (Elacatophora jambiana sp. n. and E. kerinciana sp. n.), Thailand (E. thailandiana sp. n.), and north-eastern sub-Himalayan India (E. indica sp. n.).

Two genera of Euconnus-like Stenichnini are reported to occur in Japan: Himaloconnus Franz, 1979 and Nogunius gen. n. Specimens of Himaloconnus collected on islands of the Ryukyu archipelago are identified as H. klapperichianus (Franz), previously known to inhabit Taiwan, but morphological differences were found among disjunctive populations and in...

The leaf-litter-inhabiting diparine genus Pseudoceraphron Dodd (Hymenoptera: Pteromalidae) is for the first time recorded to occur in the Northern Hemisphere (Japan) and is confirmed from New Zealand. Pseudoceraphron belissimus sp. n. (Japan: Ishigaki-jima), P. zealandicus sp. n., and P. kepanus sp. n. (both New Zealand: Northern Island) are descri...

Four new species of Alloraphes Franz are described: A. opticus sp. n. (French Guiana), A. cayennensis sp. n. (French Guiana), A. iyonolanus sp. n. (Saint Lucia), and A. ecuadoranus sp. n. (Ecuador). They all represent the first records of Alloraphes in the listed countries. New records are given for A. jamaicae Franz, and A. yucatani Franz; the lat...

Protoconnus Franz currently comprises 25 nominal species distributed in Bolivia, Costa Rica, Ecuador, Panama, Paraguay, Peru, and Venezuela. Three new species are described: P. fenestratus sp. n. (Peru), P. brachati sp. n. (Venezuela), and P. carabobonus sp. n. (Venezuela). New species are illustrated, and their characters shared with previously de...

The extinct genus Scydmobisetia Jałoszyński & Yamamoto comprises three species known from inclusions in the mid-Cretaceous Myanmar amber. Another species, Scydmobisetia dentipes Jałoszyński & Bai sp. n. is described from the same source. The holotype is a male showing a unique sub-basal tooth-like projection on the profemur.

A new species of Clidicini ant-like stone beetles, Clidicus mawarensis sp. n., is described and illustrated. The holotype male was collected in East Malaysia (Borneo: Sabah); the new species belongs to a group of large-bodied Clidicus, and shows similarities to C. ganglbaueri Reitter; the male has unusually complex structures of the aedeagal apical...

Three new species of Stenichnodes Franz are described, all placed in the nominotypical subgenus, and occurring in Ivory Coast: S. cordicollis sp. n., S. spinosus sp. n., and S. bouakensis sp. n. Stenichnodes (s. str.) error Jałoszyński is recorded from a second locality in Kenya, and S. (Parastenichnaphes) ceylonensis (Franz), previously known to o...

Microconnus Franz, previously treated as a subgenus of Euconnus Thomson, is placed as a subgenus of Napoconnus Franz. Morphological structures of all species included in Microconnus are reviewed and illustrated, and Euconnus canaimanus Franz, Euconnus conulus Franz, and Euconnus janauari O’Keefe are placed as members of Napoconnus (Microconnus), wh...

As in most species-rich groups, cases of homonymy are not uncommon among Scydmaeninae. Many primary and secondary junior homonyms were recently replaced by O’Keefe (2000), Davies (2004), Davies & Vít (2004), Castellini (2010), Jałoszyński (2011), Asenjo (2016), and Newton (2017). One new primary homonym has been published since then, and changes in...

A new Malagasy megalopsidiine rove beetle, Megalopinus puthzi sp. n., is described; the male morphological structures, including the aedeagus, are described for M. lemur Puthz for the first time, and a new record for M. heissi Puthz is given. The distribution and diversity of the sperm pump within Staphylinidae is discussed; the pump is for the fir...

A newly discovered adult beetle †Lepiceratus ankylosaurus gen. & sp. nov. (mid-Cretaceous Myanmar amber) is the first extinct member of the suborder Myxophaga to reveal fine morphological structures, studied by synchrotron microtomography. A comprehensive phylogenetic analysis places it as a stem group in the extant relict family Lepiceridae. The f...

To date, the subgenus Rhomboconnus Franz of Euconnus Thomson was represented by twelve species known to occur in Bolivia, Ecuador, Panama, Peru, and Venezuela. Examination of Neotropical species described by David Sharp and Ludwig Wilhelm Schaufuss revealed that two more species, previously not recognized as members of Rhomboconnus, occur in Guatem...

Taxonomic placement of five Neotropical species of Glandulariini, previously misplaced in Euconnus, is corrected based on examination of type specimens. Euconnus brunneus Franz is placed in Tridensius gen. n.; Euconnus sibyllensis Franz in Sibylloconnus gen. n.; Euconnus fimbriatulus Reitter in Protandroconnus Franz; Euconnus johnsoni Franz in Amim...

Four new species of the rare glandulariine genus Siamites Franz are described: S. langkatensis sp. n. (Indonesia); S. thantonus sp. n. (Thailand); S. sumatrensis sp. n. (Indonesia); and S. sabahensis sp. n. (E Malaysia). The Indonesian species represent the first records of Siamites on Sumatra, and the Malay species is the first Siamites known to o...

Trichocircus and Protandroconnus are Neotropical genera of Glandulariini characterized, among other features, by unusual male cephalic modifications. The recently described Trichocircus comprises three species distributed in Panama and Costa Rica, and Protandroconnus includes one species, known to occur in Peru. Both genera are recorded as new for...

Madagassoconnus Franz and Oneila Peringuey were described as genera, but their diagnoses largely overlap with that of Euconnus. Results of detailed morphological studies justify placing Madagassoconnus and Oneila as subgenera of Euconnus. Madagassoconnus differs from most of previously reviewed subgenera of Euconnus in minor characters, mainly in t...

Aenigmaphes gen. n. is described for a New Guinean Aenigmaphes papuanus sp. n. The new genus is characterized by several unique features, among others, by the pronotum with one pair of adjacent antebasal pits at middle, both situated in a deep median longitudinal groove, and the posterior margin of each mesocoxal rest demarcated by a step-wise ridg...