Alexandr P. Rasnitsyn

Alexandr P. Rasnitsyn
Russian Academy of Sciences | RAS · Paleontological Institute

prof.

About

446
Publications
60,950
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8,274
Citations
Additional affiliations
January 2012 - present
January 2006 - December 2012
January 2006 - December 2008
Education
September 1955 - August 1960
Lomonosov Moscow State University
Field of study
  • entomology

Publications

Publications (446)
Article
Myanmarina as a small genus has received attention since 2017 as well as the new family Myanmarinidae of basal apocritan wasps was erected by Zhang & Rasnitsyn. Myanmarina diversa sp. nov is the sixth myanmarinid wasp, is described and illustrated from mid-Cretaceous Kachin amber. The new species is characterized by male antenna with 13 antennomere...
Article
A new genus and species of tiphiid wasps, Burmatiphia mandibulata gen. et sp. nov., is described and illustrated based on a new specimen from the lowermost Cenomanian Burmese amber as forming a distinct subfamily Burmatiphiinae subfam. nov. The new taxon is characteristic of a combination of striking plesiomorphies (metasomal sterna 1 and 2 forming...
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Three new species, Brachyoxyela conjunctiva sp. nov., Brachyoxyela leei sp. nov. and Brachyoxyela elliptica sp. nov., in the tribe Macroxyelini, subfamily Macroxyelinae of the family Xyelidae, are described and illustrated. All type specimens were collected from the Lower Cretaceous (Barremian–Aptian) Yixian Formation. Brachyoxyela conjunctiva sp....
Article
Three new serphitids (Microserphites libanensis sp. nov., Leptoserphites pabloi gen. et sp. nov. and Leptoserphites iriae gen. et sp. nov.) and a gallorommatid (Cretaceomma libanensis gen. et sp. nov.) from two different outcrops from the lower Barremian Lebanese amber are characterised, described, illustrated and their taxonomic positions are disc...
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One new genus and species, Leptoxyela eximia gen. et sp. nov., and one new species, Scleroxyela cephalota sp. nov., are described and illustrated based on two well-preserved compression fossils from the Lower Cretaceous Yixian Formation and the Middle Jurassic Jiulongshan Formation of China, respectively. Leptoxyela eximia gen. et sp. nov. is place...
Article
A new fossil horntail wood wasp (Hymenoptera, Symphyta, Siricidae), Eourocerus anguliterreus gen. et sp. nov. from an early Eocene Okanagan Highlands locality at Republic, Washington, USA is described. Its forewing is most like that of the extant and fossil genus Urocerus Geoffroy, 1785. It is the third fossil siricid described from North America....
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In the order Blattinopsida, Glaphyrophlebia popasnaya Aristov et Rasnitsyn, sp. n. is described from the Upper Carboniferous (Kasimovian Stage) deposits of the Lomovatka locality in Lugansk Region of Ukraine.
Article
A new female wasp from Cenomanian Burmese amber was described as Peleserphus qufuensis sp. nov. in the proctotrupoid family Peleserphidae which emerged in the Late Jurassic to mid-Cretaceous. It provides new data on the diversity of the family in the Cenomanian Burmese amber and extends records to 5 species.
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Permian Blattinopsida in the Vorkuta Group of the Pechora Basin (Komi Republic, northern Rus-sia) are reviewed. Glaphyrophlebia komia sp. nov., G. vorkutensis sp. nov., and G. borea sp. nov. are described from the Inta Formation. The taxonomic composition of plants in the Kungurian-Ufimian interval is analyzed for the Pechora Basin in comparison wi...
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Permian Blattinopsida in the Vorkuta Group of the Pechora Basin (Komi Republic, northern Rus-sia) are reviewed. Glaphyrophlebia komia sp. nov., G. vorkutensis sp. nov., and G. borea sp. nov. are described from the Inta Formation. The taxonomic composition of plants in the Kungurian-Ufimian interval is analyzed for the Pechora Basin in comparison wi...
Article
The first vespid species from the Lower Cretaceous Crato formation (Brazil) is described and figured as Curiosivespa sennlaubi Jouault, Rasnitsyn & Nel, n. sp. This new species can be differentiated from the other Curiosivespa species, inter alia, by its forewing venation (e.g. Rs+M and 2-M aligned; 2 m-cu meeting M slightly prior to 2 r-m). This f...
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Blattinopsis indefinitus Rasnitsyn et Aristov, sp. n. is described from the Lower Permian Fokina locality (the upper Burgukla subhorizont of the upper Kungurian Stage) in North-Western Siberia. It is the latest record of the genus Blattinopsis Giebel, 1867.
Article
A new extinct insect group, Magicivena gen. nov. in Magicivenidae fam. nov., with M. sticta sp. nov. (type species), M. elegans sp. nov., M. antennalis sp. nov. and M. sp., is reported as Insecta incertae ordinis based on four specimens from the Lower Cretaceous Yixian Formation of north‐eastern China. Magicivenidae are characterized by special ant...
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Arkadiserphus leleji Rasnitsyn, gen. et sp. nov ., is described from the Upper Jurassic deposits of Karatau (Kazakhstan) in the proctotrupoid family Peleserphidae hitherto known solely from the mid-Cretaceous Burmese (Kachin) amber. Taxonomic position of the genus and past distribution of the family are briefly discussed.
Article
Burmoxyela lii gen. et sp. nov. is described and illustrated based on a male collected from mid-Cretaceous Kachin (Burmese) amber. Pinguixyela gen. nov. is described for Syspastoxyela pinguis Wang, Shih, Ren & Gao, 2019, and Syspastoxyela. simpla Wang, Shih, Ren & Gao, 2019 is transferred to the genus Striaexyela Zheng, 2019 as Striaexyela simpla (...
Article
A new genus and species of the family Angarosphecidae, Decasphex cretacicus gen. et sp. nov., from the mid-Cretaceous Burmese amber is described and illustrated. The new genus and species is most similar to Burmasphex Melo et Rosa, 2018 and can be easily distinguished in having female antenna 10-segmented (vs. 12-segmented), mesosoma more elongate,...
Article
Abstract A review of non-aculeate hymenoptera recorded in the world's Cretaceous amber assemblages is provided herein. Recorded are 287 species (265 named) representing 47 families in 17 amber assemblages. The richest in family number is the Burmese (Kachin) amber (35), followed by Canadian (19), Spanish (15), Kheta (12), Raritan (11), Charentese (...
Article
A new genus and two new species of Xyelidae Newman, 1834 (Hymenoptera Linnaeus, 1758), Platyxyela tenuis sp. nov. and Scleroxyela daohugouensis gen. et sp. nov. are described and illustrated from the Middle Jurassic Daohugou Beds of Ningcheng, Inner Mongolia, China. Platyxyela tenuis sp. nov. (Xyelinae Newman, 1834, Liadoxyelini Rasnitsyn, 1966) ca...
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The Khasurty locality (Lower Cretaceous of Transbaikalia, Russia) is one of the largest fossil insect sites in the region. Over the entire period of study, more than 6000 insect imprints have been collected here, representing 16 orders and 130 families. Dipterans, aphids and hymenopterans are the most common forms here, the most diverse taxa are Di...
Article
A new family of stephanoid wasps is established based on Cretaceous amber inclusions and rock imprints. Ohlhoffiidae fam. nov. comprises four species in three genera: Ohlhoffia robusta gen. et sp. nov., and Myanmephialtites bashkuevi gen. et sp. nov., which are newly described and figured from mid-Cretaceous amber of northern Myanmar; and Cretephia...
Article
Falsiformicidae are found to belong to Vespoidea s.l. and not to Chrysidoidea because of sexually dimorphic antennae (12-segmented in female and 13-segmented in male) and permanently internalized female tergum 7. Eight described species in three genera are known in the family including five new species (Siccibythus oculatus sp. nov., S. pallidus sp...
Article
The fossil Embolemidae (Hymenoptera: Chrysidoidea) are reviewed. Keys to the genera and species of this family are presented. Five new species of Embolemus are described from Cenomanian Kachin amber (Myanmar), namely: Em. antiquus sp. nov., Em. burmensis sp. nov., Em. cretacicus sp. nov., Em. ohmkuhnlei sp. nov. and Em. zherikhini sp. nov. They are...
Article
The myanmarinid wasp Myanmarina sidorchukae sp. nov. is described and illustrated from the Cenomanian Burmese amber, based on an exquisitely preserved specimen. The new species is characterized by the presence of 12 antennomeres, with first and second flagellomeres equal in length, fourth and fifth flagellomeres distinctly longer than others; the m...
Article
The wasp family Panguidae Li, Rasnitsyn, Shih & Ren, 2019 was erected on the basis of the type species Pangu yuangu, which is a female preserved in mid-Cretaceous Burmese (Myanmar) amber. Herein, a new species, Pangu antiquum sp. nov., is described based on a male wasp. In addition, the wasp Prosphex anthophilos Grimaldi & Engel, 2019, described as...
Article
A new species of plumalexiid wasp, Plumalexius ohmkuhnlei sp. nov., is described from the mid-Cretaceous Myanmar (Burmese) amber, based on a single male specimen. It is compared with the only other known plumalexiid, Plumalexius rasnitsyni Brothers, from the Turonian New-Jersey amber, and provides additional information confirming the relatively ba...
Article
Parasitic wasps of the extinct superfamily Serphitoidea are a common, yet very unusual component of the Cretaceous microhymenopterans (Gibson et al., 2007; Engel, 2016; Rasnitsyn & Öhm-Kühnle, 2018a, b, 2020). Of them, Archaeoserphitidae represent a most basal and least explored branch known from a single find of two males in a piece of a comparati...
Article
The authors revise the taxonomy of infraorder Proctotrupomorpha. Although this revision is not meant as being complete, it is based on the most important structures of the infraorder. A new taxon in Proctotrupomorpha is being erected, Microprocta, taxon nov., as a new informal group (clade), comprising the superfamilies Chalcidoidea, Platygastroide...
Article
A new sawfly, Sclerosyntexis hirsuta gen. et sp. nov., in the subfamily Syntexinae of the Anaxyelidae is described from the mid-Cretaceous Myanmar (Burmese) amber. The new taxa is established primarily based on the following characters, i.e. body fusiform with a large head; antenna with pedicel almost twice as long as the first flagellomere; mesono...
Article
A new genus and species, Burmorussus mirabilis, is described based on two specimens from the mid-Cretac-eous Burmese amber, and considered to be a specialized parasitic wasp of wood-living hosts. The new taxon is characterized by an orussid-like ocellar crown, big eyes, antennae attached well above the clypeus, and antennal grooves or ventral trans...
Article
Through the ongoing research on Burmese amber, our knowledge about mid-Cretaceous life on an island in the Tethys ocean continuingly increases (Ross, 2019, 2020; Westerwheel et al., 2019), a life that was exotic and highly endemic (Zhang, 2018; Rasnitsyn & Öhm-Kühnle, 2018a). Among its rich biota is the extinct, strictly Cretaceous family Serphitid...
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Fleas are highly specialized holometabolic insects. So far, only 16 species of fossil fleas in five families have been reported due to the rare fossil records. At present, the earliest flea fossils are reported from the Middle Jurassic Jiulongshan Formation of Northeastern China. The descriptions of these earliest species pushed back the origin of...
Article
Scolebythidae is a small relict family of ordinary looking small wasps with only four genera and six species in the contemporary fauna of Central and South America, South Africa, Madagascar, north China, Thailand, Australia and Fiji; and with 11 genera and 13 species in various Cretaceous, Eocene and Miocene ambers and rocks (Engel, 2015; present p...
Article
Kopylov, D.S., Rasnitsyn, A.P., Zhang, H. & Zhang, Q., 21 January 2020. Anaxyelidae of Daohugou: oldest occurrences of the relict family in the fossil record. Part 1: Daosyntexis and Brachysyntexis. Alcheringa XX, xxx–xxx. ISSN 0311-5518. One new genus and seven species of Anaxyelidae are described from the Middle Jurassic of Daohugou, Inner Mongol...
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This paper records the first occurrence of the genus Myrmicium Westwood, 1854 in the Cretaceous of Gondwana and describes it as a new species Myrmicium araripterum sp. nov, based on the most complete specimen of this genus yet known, which represents the largest specimen of the grade “Symphyta” ever found in the Crato Formation.
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Due to a lack of Mesozoic fossil records, the origins and early evolution of feather-feeding behaviors by insects are obscure. Here, we report ten nymph specimens of a new lineage of insect, Mesophthirus engeli gen et. sp. nov. within Mesophthiridae fam. nov. from the mid-Cretaceous (ca. 100 Mya) Myanmar (Burmese) amber. This new insect clade shows...
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A new sawfly of Megalodontesidae, Jibaissodes peichenaesp. nov. , is described from the Lower Cretaceous Yixian Formation of Northeastern China. It is established mainly based on the pectinate antenna comprising 42 flagellomeres and the proximal 28 bearing apical rami, which gradually shorten in length toward the apex of the flagellum. The pterosti...
Article
A new superfamily Panguoidea superfam. nov. is erected based on one new family, Panguidae fam. nov., with one new genus and species, Pangu yuangu gen. et sp. nov. In addition, one new species, Burmusculus magnus sp. nov. of Burmusculidae, is also described. Both of these two type specimens are from mid-Cretaceous Myanmar (Burmese) amber. A key to s...
Article
Microhymenopterans are important components of modern ecosystems, where they act as egg parasites and hyperparasites of arthropods. Mymarommatoidea are among the smallest hymenopterans and their actively flying adults have four wings, like all known members of the order Hymenoptera. Mymarommatoids were first described as fossils, and although their...
Article
Once more, an unexpected fossil insect has been discovered in fossil amber from Myanmar — commonly called Burmese amber. The wasp, which now was described as Supraserphites draculi gen. sp. nov. (see Fig. 1), shows characteristics of two different families, Serphitidae and Archaeoserphitidae. Full text: https://sciencetrends.com/strange-dracula-was...
Article
Based on new and better images of the fossils, we revise the known Cretaceous Proctotrupomorpha of Australia. The fossils were collected at the Koonwarra Fossil Bed, the only source of Cretaceous Proctotrupomorpha in Australia so far. The revision results in the following new taxa and new attributions: Cretacoformicidae fam. nov. in Proctotrupomorp...
Article
Burmese amber continues to provide a plethora of unexpected fossils, with its extraordinarily rich and speciose mid-Cretaceous fauna of Arthropoda and particularly of Hymenoptera (Ross, 2015; Rasnitsyn et al., 2017; Li et al., 2018; Rasnitsyn and Öhm-Kühnle, 2018a, b; Zhang et al., 2018a–d). Among these specimens, there are abundant, minute and spe...
Article
Ekaterina Alekseevna Sidorchuk (Katya to all that knew her) (Fig.1) was born in Moscow into a family of scientists: her father was a geomorphologist and her mother a Quaternary palynologist. Soil/peat microsamples from the North Russian Quaternary, the main research material of her mother, are commonly rich in oribatid mites, which Katya started to...
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Two new species, Daohugoa longa Wang, Rasnitsyn & Ren sp. nov. and D. bella Wang, Rasnitsyn & Ren sp. nov. are described from the latest Middle Jurassic Jiulongshan Formation in north-eastern China. The new fossil evidence indicates that Daohugoa retains numerous plesiomorphies of basal Hymenoptera: an enlarged first flagellomere, complete xyelid-l...
Article
Described as new in Serphitidae are Supraserphitinae Rasnitsyn & Öhm-Kühnle, subfam. nov. and Supraserphites draculi Rasnitsyn & Öhm-Kühnle, gen. et sp. nov. from mid-Cretaceous Burmese amber. The new subfamily is synapomorphic with the other Serphitidae in having the number of flagellomeres reduced (less than 12), and autapomorphic in respect to o...
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Changes in insect biodiversity in terms of the number of families throughout the history of the class are described. The results are compared with those published recently by other researchers and possible reasons for observed differences are discussed. The main stages in the evolution of insect diversity are recognized. The per-family rates of the...
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The phylogeny of the superfamily Evanioidea is presented using morphology and DNA sequence data of selected extant and fossil genera by employing two phylogenetic methods, maximum parsimony and Bayesian inference. Based on our new results, the monophyly of Evanioidea is corroborated. Evanioidea, Anomopterellidae, Othniodellithidae, Andreneliidae an...
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The Burmese amber assemblage of Hymenoptera with its 47 constituent families is now the richest in Cretaceous. A collection of Burmite (Burmese amber) from the Hukawng Valley, Myanmar at the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences was examined, revealing that Burmite inclusions contain a very highly diverse hymen...
Preprint
A group of aculeate wasps from mid-Cretaceous Burmese amber is described as Burmusculus Zhang and Rasnitsyn, gen. nov. in Burmusculidae Zhang and Rasnitsyn, fam. nov. The type genus Burmusculus contains three species: Burmusculus nuwae Zhang and Rasnitsyn sp. nov., Burmusculus fuxii Zhang and Rasnitsyn, sp. nov., and Burmusculus shennongii Zhang an...
Article
A group of aculeate wasps from mid-Cretaceous Burmese amber is described as Burmusculus Zhang and Rasnitsyn, gen. nov. in Burmusculidae Zhang and Rasnitsyn, fam. nov. The type genus Burmusculus contains three new species: Burmusculus nuwae Zhang and Rasnitsyn, sp. nov., Burmusculus fuxii Zhang and Rasnitsyn, sp. nov., and Burmusculus shennongii Zha...
Article
Two new species of the family Angarosphecidae, Angarosphex saxosus sp. nov. and Vitimosphex vividus sp. nov., from the Lower Cretaceous Yixian Formation of northeastern China are described and illustrated. Generic diagnoses are revised. The genera Palaeapis Hong, 1984, Mataeosphex: Zhang, 1985, and Calobaissodes Zhang, 1992 are synonymized under An...
Article
Three new female wasps of the family Aptenoperissidae from the mid-Cretaceous Burmese amber are described as Aptenoperissus magnifemoris Rasnitsyn & Öhm-Kühnle, sp. nov., A. etius Rasnitsyn & Öhm-Kühnle, sp. nov., and A. pusillus Rasnitsyn & Öhm-Kühnle, sp. nov., assigned to the genus Aptenoperissus Rasnitsyn & Poinar, 2017. Features of the current...
Article
A new basal horntail wasp, Cretosirex xiaoi gen. et sp. nov., in the family Siricidae is described from one fossil specimen collected from the Lower Cretaceous Yixian Formation in northeastern China. The new genus is placed in the basal group of Siricidae based on the forewing with 2r-m present and 1-RS subvertical; presence of the clearly subbasal...
Article
Two new species of Eocene Eomerope Cockerell (Mecoptera: Eomeropidae) are described from the Ypresian Okanagan Highlands deposits of British Columbia, Canada: Eomerope simpkinsaenew species from the Allenby Formation near the town of Princeton, and Eomerope eonearcticanew species from the McAbee locality near the towns of Cache Creek and Ashcroft....
Article
Information on the internal organization of Saurophthirus longipes Ponomarenko, 1976 from the Baissa locality in the western Transbaikalia is described and supplemented with the data on its digestive system. The entire intestine is straight, without bends or outgrowths. The proventriculus is hypertrophied and sclerotized; the midgut is wide, saclik...
Article
Most major modern families of Hymenoptera were established in the Mesozoic, but the diversifications within ecologically key trophic guilds and lineages that significantly influence the character of modern terrestrial ecosystems – bees (Apiformes), ants (Formicidae), social Vespidae, parasitoids (Ichneumonidae), and phytophagous Tenthredinoidea – w...
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Baeomorphinae Yoshimoto, 1975, based on Baeomorpha Brues, 1937, is transferred from Tetracampidae Förster, 1856 and recognized as a junior synonym of Rotoitidae Bouček and Noyes, 1987 (Hymenoptera: Chalcidoidea) syn. nov. following ICZN (1999) article 35.5. Inclusions in Taimyr amber (84-100 Ma) assigned to Baeomorpha are reviewed and the following...
Article
Males of the enigmatic family of wasps Aptenoperissidae are recorded in mid-Cretaceous Burmese amber for the first time. The family was described recently based on a single wingless female. Three new species are described and figured as: Aptenoperissus formosus sp. nov., Aptenoperissus amabilis sp. nov. and Aptenoperissus delicatus sp. nov. Male ch...
Article
A new family of basal apocritan wasps is established based on three new species discovered from the mid-Cretaceous Burmese amber and tentatively allied to the superfamily Stephanoidea. The family Myanmarinidae Zhang and Rasnitsyn fam. nov. contains one new genus Myanmarina Zhang and Ras�nitsyn gen. nov., including three new species: Myanmarina lisu...
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Five new species of sepulcids (Hymenoptera: Sepulcidae) are described from the Lower Cretaceous of Transbaikalia and Mongolia (localities Khasurty, Baissa, and Bon-Tsagan). The new species belong to the subfamilies Ghilarellinae and Trematothoracinae: Ghilarella alexialis sp. nov., G. masculina sp. nov., Trematothorax zhangi sp. nov., T. brachyurus...
Article
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We describe Pamphilioidea: Mirolydidae Wang, Rasnitsyn et Ren, fam. n., containing Mirolyda hirta Wang, Rasnitsyn et Ren, gen. et sp. n., from the late Middle Jurassic Jiulongshan Formation of Daohugou, Inner Mongolia, China. The new taxon is characterized by unique forewing venation with the presence of forewing SC, 1-RS almost as long as 1-M, M +...
Article
The tracheal system of Saurophthiridae is described based on female fossils of Saurophthirus longipes Ponomarenko, 1976. Three very wide tracheal trunks are found running dorsolaterally along each side of the body. The tracheal system is amphipneustic, with the large mesothoracic and very large 8th abdominal spiracles. The 9th and following segment...
Article
По изученным остаткам самок Saurophthirus longipes Ponomarenko, 1976 дается характеристика но- вых деталей их внутреннего строения. Описывается трахейная система, которая представлена тремя парами широких продольных стволов, открывающихся двумя парами дыхалец: крупными между передне- и среднеспинкой и очень крупными на вершине восьмого сегмента брю...