Kjell Arne Johanson

Swedish Museum of Natural History · Department of Zoology

All 835 valid species of caddis flies recorded from Vietnam by the end of 2021 are cataloged. The catalog is annotated with in for mation about reference to original description where the species was described, type locality, depository in stitution of the type mate rial, habitat where the species has been collected, and distribution. The distribut...

Two new species of Oecetis from Maliau Basin, Malaysian Borneo, are described for the first time, O. mesospina sp. nov. and O. apelqvisti sp. nov. These two new species bring the total number of Oecetis found on the island of Borneo up to 16.

Oxyethira Eaton, 1873 is one of the most diverse genera of Hydroptilidae, comprising over 240 species distributed in all biogeographical regions. Here three new species of Oxyethira (Trichoglene) Neboiss, 1977 are described and illustrated from male specimens collected in New Caledonia: O. (Trichoglene) hamus sp. nov., recognized by the hook-shaped...

The overall declining state of the western taxonomy is clearly documented by the present fate of the extremely high valued and huge unidentified caddisfly material collected in India and deposited in the Canadian National Collection. Due to the general lack of both financial and scientific resources in taxonomy, this huge collection remained almost...

Three new species of Oecetis McLachlan, 1877 from Laos are described, O. asymmetrica sp. n., O. conjuncta sp. n. and O. triangulata sp. n. Additional faunistic records are provided for two species already known from Laos: O. empusa Malicky and Chaibu, 2000 and O. raghava Schmid, 1995. http://www.zoobank.org/urn:lsid:zoobank.org:pub:2D16083A-09CE-47...

New Caledonia has a rich Trichoptera fauna with over 200 known species, most of them endemic. The to- tal diversity has been estimated as high as 300 to 600 species. The endemic genus Agmina Ward & Schefter (Ecnomidae, Trichoptera) includes 28 described species. Based on male genitalia morphology and previ- ously published molecular data another 47...

The following six new Oecetis species have been described and illustrated: O. lata, O. gretae, O. malickyi, O. porntipae, O. olahi, and O. hageni. The following three Oecetis species are recorded for the first time from Vietnam: O. maron Malicky & Chantaramongkol 2005 (in Malicky 2005), O. iakchos Malicky 2005, and O. jachin Malicky & Mey 2010 (in...

Eighteen new species of Oecetis are described, diagnosed, and illustrated from New Caledonia: Oecetis amphora sp. nov., Oecetis ovula sp. nov., Oecetis ramosa sp. nov., Oecetis loyolaensi sp. nov., Oecetis millei sp. nov., Oecetis christinae sp. nov., Oecetis rostrata sp. nov., Oecetis alicae sp. nov., Oecetis oxybelis sp. nov., Oecetis dorsospina...

The poorly known, so called widely distributed and highly varying species of the European Rhyacophila fasciata species complex are revised by fine phenomics of the paramere organisation. In this species complex paramere is the most diverse organ. It is the speciation trait integrating the initial split of speciation by its stimulatory and titillati...

Three species are recorded for the first time in Sweden, Rhamphomyia erythrophthalma Meigen, 1830, R. lamellata Collin, 1926, and Platypalpus pygialis Chvala, 1973, and additionally new provincial records for several species from both Hybotidae and Empidae are presented. We also provide DNA barcode sequences from 71 species, submitted to the Barcod...

The discovery of the new Agaphylax genus with unique paramere organisation has initiated our lineage sorting of tribes by parameres in the Limnephilinae subfamily applying the principles and procedures of fine phenomics in order to establish transformation series of the polarized plesiomorphy-apomorphy character states for each limnephiline genera....

A total of nine families of Trichoptera were identified from material collected in Malaise and light traps in the western part of Nyungwe National Park, southwestern Rwanda, late October 2018. Included in the material was an undescribed species of Pisuliidae which is described herein as Silvatares laetae Ngirinshuti & Johanson sp. nov. The new spec...

The first Trichoptera recorded from New Caledonia were four species described by Kimmins in 1953, each in a new endemic genus. The diversity was increased to eight species with the publication by Sykora in 1967 of three new species in two new genera and a fourth species in a previously established genus. Today, 239 valid species are known from the...

A considerable number of insect species, including Trichoptera, are described from a single specimen, also known as a 'unique' or a 'singleton'. We ask the question of whether this reflects failure to consider variation and related species, lack of collecting effort, or true rarity. In an attempt to answer this question we examine the available lit...

Abstract. We have recognised significant incongruences among the most commonly used taxonomic characters in the European species of Wormaldia genus of the Philopotamidae caddisfly family. During taxonomical analysis and ranking procedures we have recorded incongruent, discorcordant characters also in the taxa in Rhyacophilidae, Hydropsychidae and L...

The caddisfly materials collected by Hungarian zoologists during 25 collecting trips between the years of 1970 and 2016 in the Korean Peninsula was identified and compared when required with Eastern Palaearctic relatives. The appen-dicular genital terminology was adopted and applied to several representatives of Polyphorae taxa. We identified 95 ca...

Empidoidea represent a large and diverse superfamily of true flies, and to date no stable hypothesis on the phylogeny exists. Previous classifications have been based on morphological data and the relationships among several groups are still unknown. Using the mitochondrial genes cytochrome oxidase c subunit I (COI) and cytochrome β (Cytβ) and the...

Three new species of Caledomina Johanson, 2011 are described and illustrated for the fi rst time: C. paniensis sp. nov., C. dorsospina sp. nov. and C. kohensis sp. nov. A key to the males of the four known species in the genus is given, as well as a map indicating their geographical distribution. When examining a phylogenetic hypothesis comprising...

We inferred the phylogenetic relationships among 58 genera of S ericostomatoidea, representing all previously accepted families as well as genera that were not placed in established families. The analyses were based on five fragments of the protein coding genes carbamoylphosphate synthetase ( CPSase of CAD ), isocitrate dehydrogenase ( IDH ), E lon...

Today's distributions of faunal groups reflect historic events—geological and evolutionary, as well as dispersals, extinctions and chance events. The extent to which each of these contributed to the hydroptilid faunas of mainland Australia, Tasmania, New Guinea, New Zealand, New Caledonia, Fiji and Vanuatu is explored by comparison of the faunal co...

New Caledonian representation of the cosmopolitan genus Oxyethira Eaton is reviewed, with the description of new species bringing to 26 the total for the genus on the island. The species are referred to three subgenera: Trichoglene Neboiss (11 species), Pacificotrichia Kelley (13 species) and Dampfitrichia Ulmer (one species) and one species is unp...

Based on intensive collecting from various sites in Sweden, the genus Dasyhelea Kieffer, 1911 was reviewed and the number of species now known from the country increased from five to twenty. Among the new species recorded there are two species described as new to science, D. dominiakae sp. nov. and D. gothlandica sp. nov., both in the subgenus Dicr...

The phylogeny of Chimarra has previously been examined using morphological characters for a smaller subset of taxa and geographical representativeness. Here molecular data from three genes (COI, CAD and POL-II) are used to reconstruct the phylogeny of the genus. The results show Chimarra to be monophyletic, and that some of the sister groups are pa...

For the first time species of caddisflies in the genus Chimarra Stephens 1829 are reported from Malawi. The following new species are described: Chimarra zombaensis, C. flaviseta, C. chichewa, C. circumverta, C. mulanjae, C. psittacus and C. calidopectoris. The descriptions add to the knowledge of Afrotropical diversity in the order Trichoptera.

We review the New Caledonian representatives of the Australasian endemic hydroptiline genus Acritoptila, based on examination of a considerable collection of material in the Swedish Museum of Natural History and of types of previously established species. A key for identification of males is given and includes 3 species newly described here: A. par...

The insect order Trichoptera (caddisflies) forms the second most species‐rich monophyletic group of animals in freshwater. So far, several attempts have been made to elucidate its evolutionary history with both morphological and molecular data. However, none have attempted to analyse the time frame for its diversification. The order is divided into...

The New Caledonian endemic hydroptilid genus Caledonotrichia Sykora (Trichoptera) is reviewed and 6 new species are described: Caledonotrichia bifida, Caledonotrichia capensis, Caledonotrichia minuta, Caledonotrichia ouinnica, Caledonotrichia sykorai and Caledonotrichia vexilla. Together with the established species for which revised diagnoses are...

Magadacerina forcipata, new genus, new species (Trichoptera: Leptoceridae), is described from Madagascar. The monotypic genus is characterised by having the tibial spur formula 2,2,2; wings with sessile bifurcation of M; genitalia with preanal appendages fused with segment IX and greatly produced posterad, and a tergum X with an anteriorly extended...

THE FOLLOWING THREE NEW SPECIES ARE ILLUSTRATED AND DESCRIBED FROM FIJI: Triaenodes rebellus Eriksson & Johanson, sp. n., Triaenodes oscitus Müller & Johanson, sp. n., and Triaenodes forcipatus Puranen Li & Johanson, sp. n. All species are endemic to Viti Levu. A key to the male Triaenodes species of Fiji is provided. With this report, the number o...

New Caledonian representation of the New Zealand-New Caledonian hydroptilid caddisfly genus Paroxyethira Mosely, 1924, is reviewed on the basis of a considerable collection from widespread New Caledonian localities. Description of 8 new species brings to 10 the known fauna for the island. Males of all New Caledonian species are illustrated, a key t...

The philopotamid genus Chimarra (Trichoptera) of Fiji is revised. The previously described species Chimarra nervosa (Brauer, 1867) is considered a nomen dubium. Chimarra indigota Mosely, 1941, is synonymized with Chimarra manni Banks, 1924. The following 24 new Chimarra species are described: C. vanuensis, C. macuatensis, C. schlingeri, C. nathani,...

Three new species of Helicopsyche Siebold, 1856 are described from Vietnam: Helicopsyche melina sp. nov., Helicopsyche meander sp. nov., and Helicopsyche lamnata sp. nov. All species were described from Melinh Station for Biodiversity in the Me Linh District of Vinh Phuc Province. The species were collected mainly in Malaise traps situated across a...

The Trichoptera diversity of Vanuatu is reviewed based on earlier and recently collected material. Altogether, 20 species in 12 genera and 8 families are now recognized for the country, of which 12 species are described as new to science in the families Hydrobiosidae (1 species), Hydroptilidae (5 species), Philopotamidae (3 species) and Leptocerida...

A new ecnomid genus and species, Caledomina noumea n. g. et n. sp. is described. The establishment of the new genus is based on its phylogenetic position in relation to other taxa in the family, but is also distinguished from the other genera in the family by several morphological character states in the males. A key to the genera in the family is...

Male and female of Goera pitisopai sp. nov. from the Solomon Islands are illustrated and described based on recently collected material. This is the first species of the family Goeridae reported from the Solomon Islands, and the sixth from the Australasian region.

Specimen information with Genbank/EMBL accession numbers. List of specimens sequenced and analysed in this work. Species names sorted under family affinity, with NHRS voucher code, information of gender/life stage and sample locality as well as accession numbers to online sequence databases.

Leptoceridae are among the three largest families of Trichoptera (caddisflies). The current classification is founded on a phylogenetic work from the 1980's, based on morphological characters from adult males, i.e. wing venation, tibial spur formula and genital morphology. In order to get a new opinion about the relationships within the family, we...

Madagocerum gen. n. is described from Madagascar, representing the second genus of Odontoceridae from the Afrotropical Biogeographical Region. The following new species are described: M. bhemi, M. idvigum and M. thoderirk spp. n. All species were collected from moderately high elevations (above 1,550 meters).

Thirteen species of Helicopsyche, subgenus Feropsyche (Trichoptera: Helicopsychidae) are recorded from Costa Rica, including 3 new species: H. alajuela, n. sp., H. dorsocurvata, n. sp., and H. golfitoensis, n. sp., as well as 10 previously described species: H. borealis (Hagen), H. chiriquensis Johanson & Malm, H. dampfi Ross, H. incisa Ross, H. le...