Evgeny Perkovsky - Academia.edu (original) (raw)

Papers by Evgeny Perkovsky

Research paper thumbnail of New genus and species of Aleyrodidae from the Eocene Baltic amber (Hemiptera: Sternorrhyncha: Aleyrodomorpha).

A new genus Rovnodicus gen. n., with new species Rovnodicus wojciechowskii sp. n. is described fr... more A new genus Rovnodicus gen. n., with new species Rovnodicus wojciechowskii sp. n. is described from Eocene Rovno amber, Ukraine. It is placed in the subfamily Aleurodicinae. It is the first whitefly from this fossil source. Its morphological features and taxonomic position with respect to other Aleurodicinae from the Eocene are briefly discussed. The article outlines the influences of this finding on discussions of the origin, age and taxonomic similarities between Baltic amber from Ukraine and that from the Gulf of Gdańsk and Bitterfeld as well as on palaeoecological reconstructions of the fossil site. The name ‘Aleurochiton eozaenicus WEIGELT 1940’, mentioned as the fossil puparium of a whitefly from the Middle Eocene Geiseltal Fossillagerstätte appears to be nomen nudum.

Research paper thumbnail of Orthoclads from Eocene Amber from Sakhalin (Diptera: Chironomidae, Orthocladiinae)

Insect Systematics & Evolution, 2015

ABSTRACT Four Middle Eocene orthoclad species, Heterotrissocladius naibuchi sp. n., Paraphaenocla... more ABSTRACT Four Middle Eocene orthoclad species, Heterotrissocladius naibuchi sp. n., Paraphaenocladius nadezhdae sp. n., Pseudosmittia kodrulae sp. n. and Smittia sukachevae sp. n.. are described and figured. Based on the combination of the diptera fauna composition and paleobotanical data, suggestions on the climate and habitats of the Sakhalin amber forest are given.

Research paper thumbnail of The First Eocene Species of the Genus Micrambe (Coleoptera, Clavicornia, Cryptophagidae)

Research paper thumbnail of New Gall Midges (Diptera, Cecidomyiidae) from the Rovno Amber: Subfamily Lestremiinae, Tribes Strobliellini and Campylomyzini; Subfamily Porricondylinae, Tribes Diadocidiini and Asynaptini

Research paper thumbnail of A Comparative analysis of the Baltic and Rovno Amber arthropod faunas: Representative Samples

African Invertebrates

A comprehensive comparison is provided for the first time for arthropod-assemblage compositions i... more A comprehensive comparison is provided for the first time for arthropod-assemblage compositions in Rovno and Baltic ambers, based on representative samples from Klesov (Pugach) and Dubrovitsa (Vol'noje) quarries (1256 fossils) and Yantarny quarry (757 fossils), respectively. A representative collection of Baltic amber was taken in Yantarny at the local mining factory (only smaller pieces that fitted through a 32 mm sieve were selected). A representative collection of Rovno amber was taken at the factory "UkrAmber" (Rovno). Results indicate the compositions of the assemblages to be different enough to consider the origin of Rovno and Baltic ambers as geographically different. The relative abundance of mites (Acari) in the Rovno sample is 0.6 times that in the Baltic sample (the share of dominant "Acarus" rhombeus Koch & Berendt in the Rovno smple is 0.3 times that in Baltic amber), and the relative abundance of Homoptera in the Rovno sample is almost half of that in the Baltic sample (mainly due to relative rarity of both the dominant aphid Germaraphis, whose share is 0.2 times that in the Baltic sample, and the scale insects). Within Diptera, the proportion of Chironomidae is almost half, and Sciaridae twice that of the Baltic sample. In terms of ants (Formicidae), the proportion of Ctenobethylus goepperti (Mayr) in the Rovno sample is half of that in the Baltic sample. The most striking are differences in species-level composition: 9 of 37 ants found in the Rovno representative sample belong to species and genera unknown in Baltic amber. Some differences encountered are of an ecological nature: aquatic and subaquatic arthropods are comparatively rare and leaf-litter dwellers of the Sciara zone are very abundant in Rovno amber. The age of the Baltic amber and stratigraphic correlation of the amber-bearing Prussian Formation are also considered in some detail. It is concluded that the proposal for their Ypresian-Lutetian age contradicts a wide array of the palaeontological, radiological, and stratigraphic data and thus cannot be accepted on the basis of available evidence.

Research paper thumbnail of New Species of Gall Midges (Diptera, Cecidomyiidae) from Rovno Amber: Subfamily Lestremiinae, Tribes Micromyiini and Peromyiini

The origin and age of Rovno amber are reviewed. Eight new species of gall midges assigned to the ... more The origin and age of Rovno amber are reviewed. Eight new species of gall midges assigned to the genera Micromyia, Aprionus , and Heterogenella (Micromyiini) and Peromyia and Conarete (Peromyiini) are described from Rovno amber.

Research paper thumbnail of First Records of Scolebythidae And Chrysididae (Hymenoptera, Chrysidoidea) In Rovno Amber

Vestnik Zoologii, 2013

First Records of Scolebythidae and Chrysididae (Hymenoptera, Chrysidoidea) in Rovno Amber. Perkov... more First Records of Scolebythidae and Chrysididae (Hymenoptera, Chrysidoidea) in Rovno Amber. Perkovsky E. E., Rasnitsyn A. P. -Recorded from the Late Eocene Rovno amber (Ukraine) are above 300 families of Arthropoda. One hundred, seventy-four new species, 35 new genera and one new tribe have been described there in 45 families, including 42 species, 9 genera and one tribe of Hymenoptera. The first record of Scolebythidae is documented herein along with more detail information about Chrysididae which was only mentioned there before. Chrysidids are diverse and not very rare in the Rovno amber: four known inclusions represent at least three species in two genera. This makes a contrast with the Baltic amber: of 34 specimens known to Brues (1933), 30 represent only two species. Genera Pristapenesia Brues, Palaeobethylus Brues and Palaeobethyloides Brues and species Palaeobethylus politus Brues and Pristapenesia primaeva Brues, previously known in Baltic amber only, are recorded in Rovno amber as well.

Research paper thumbnail of First record of a Chironomidae pupa in amber

Geobios, 2015

ABSTRACT A pupal exuviae of a non-biting midge (Chironomidae) is recorded in Eocene Rovno amber f... more ABSTRACT A pupal exuviae of a non-biting midge (Chironomidae) is recorded in Eocene Rovno amber from Ukraine. The exuviae belongs to an Orthocladiinae species. It possesses several traits characteristic for terrestrial species including non-fringed anal lobes without macrosetae, tergites with only minute shagreen, bare conjunctives, and absence of thoracic horns and frontal warts. Up to now, this is the earliest record of a preimaginal stage of Orthocladiinae, and the only record of a chironomidae pupal exuviae from amber.

Research paper thumbnail of First Record of Mites of the Family Stigmaeidae (Acari, Raphignathoidea) from Rovno Amber with Description of a New Species of the Genus Mediolata

Research paper thumbnail of First records on non-biting midges (Diptera: Chironomidae) from the Rovno amber

Research paper thumbnail of New gall midge taxa of the subfamilies porricondylinae and lasiopterinae (Diptera, Cecidomyiidae) from the Rovno amber

Research paper thumbnail of Fourth Contribution on Late Eocene Amber Silken Fungus Beetles: A New Baltic Amber Species of Atomaria (Coleoptera, Clavicornia, Cryptophagidae)

Research paper thumbnail of Gall midges of the supertribe Stomatosematidi (Diptera, Cecidomyiidae) in the Palaearctic Region, with descriptions of new taxa from the Late Eocene Rovno amber: 1. Stomatosema, Vanchidiplosis, Clarumreddera gen. n

Entomological Review, 2012

ABSTRACT One new genus (Rovnodidactylomyia Fedotova et Perkovsky, gen. n.) and four new species (... more ABSTRACT One new genus (Rovnodidactylomyia Fedotova et Perkovsky, gen. n.) and four new species (Didactylomyia dlusskyi sp. n., Rovnodidactylomyia zosimovichi gen. n. et sp. n., R. sidorenkoi sp. n., and R. iconica sp. n.) are described from an amber sample of the late Eocene Period (Rovno District, Ukraine). Two species from a Baltic amber sample of the late Eocene Period, described earlier in the genus Bryocrypta, are attributed to the genus Rovnodidactylomyia (R. girafa (Meunier, 1904) comb. n. and R. capitosa (Meunier, 1904)). The first fossil species of the genus Didactylomyia is described for the first time; two contemporary Palaearctic species are recorded. Keys to the species of the genus Didactylomyia are given.

Research paper thumbnail of Gall midges of the supertribe stomatosematidi (Diptera, Cecidomyiidae) in the Palaearctic region, with description of new taxa from the Late Eocene Rovno amber: 3. Groveromyia gen. n. analysis of biometric parameters of the recent and late eocene genera and species

Entomological Review, 2012

ABSTRACT The new genus Groveromyia gen. n. was described from the Late Eocene Rovno amber. The ge... more ABSTRACT The new genus Groveromyia gen. n. was described from the Late Eocene Rovno amber. The genus includes 4 species: G. occlusa sp. n., G. digna sp. n., G. astrosa sp. n., and G. concinna (Fedotova, 2005) comb. n. (Bryocrypta). Some changes in the biometric parameters of the genera and species were revealed relative to those in the recent and the Late Eocene Stomatosematidi. Keys to the recent and fossil genera of the tribe Stomatosematidi and the species of the genus Groveromyia are given.

Research paper thumbnail of A new species of the genus Disogmus Förster (Hymenoptera, Proctotrupoidea, Proctotrupidae) from the Eocene Rovno amber

ZooKeys, 2011

Disogmus rasnitsyni Kolyada & Perkovsky, sp. n. is described from a fossil inclusion of Late Eoce... more Disogmus rasnitsyni Kolyada & Perkovsky, sp. n. is described from a fossil inclusion of Late Eocene amber (Ukraine). The new species is most similar to D. basalis (Thomson, 1857), in particular, in the shape of the tyloids and the general shortening of the segments of antennae, but distinctly differs from it and the other species of the genus by having tyloids on flagellar segments 2-4 compared to 3-6 and 4-7 in other species.

Research paper thumbnail of Third contribution on Rovno amber silken fungus beetles: a new Eocene species of Cryptophagus (Coleoptera, Clavicornia, Cryptophagidae)

ZooKeys, 2011

Cryptophagus alexagrestis Lyubarsky & Perkovsky, sp. n. is described based on a fossil in... more Cryptophagus alexagrestis Lyubarsky & Perkovsky, sp. n. is described based on a fossil inclusion in Late Eocene Rovno amber (Ukraine). The new species is similar to the extant Cryptophagus skalitzkyi Reitter and Cryptophagus dilutus Reitter, differing from the latter by having a very transverse, short and dilated 10th antennal segment, and from the former by the very elongate segments of the flagellum.

Research paper thumbnail of New gall midges of the tribe Leptosynini (Diptera, Cecidomyiidae) from the Late Eocene ambers and the classification of the supertribe Heteropezidi

Paleontological Journal, 2009

Research paper thumbnail of New species of the tumbling flower beetle genus Glipostena (Insecta: Coleoptera: Mordellidae) from Rovno amber

Paleontological Journal, 2009

A new fossil species of the tumbling flower beetle genus Glipostena is described from Rovno amber... more A new fossil species of the tumbling flower beetle genus Glipostena is described from Rovno amber. It differs from its recent and fossil congeners in the shapes and proportions of the antennomeres, and the number and position of lateral ridges on the hind tibia.

Research paper thumbnail of A new species of the scraptiid beetle genus Anaspis (Insecta: Coleoptera: Scraptiidae) from the Baltic and Rovno ambers (Upper Eocene of Eastern Europe)

Paleontological Journal, 2009

ABSTRACT

Research paper thumbnail of Rovnoecus, a new genus of digger wasps (Hymenoptera, Crabronidae, Pemphredoninae) from the Rovno amber

Paleontological Journal, 2009

A new fossil digger wasp Rovnoecus klesovicus gen. et sp. nov. (Hymenoptera, Crabronidae, Pemphre... more A new fossil digger wasp Rovnoecus klesovicus gen. et sp. nov. (Hymenoptera, Crabronidae, Pemphredoninae, Pemphredonini) is described from the Upper Eocene Rovno amber. The genus Rovnoecus gen. nov. is characterized by an incomplete occipital carina, partly reduced second discoidal cell, and the presence of spines on all tibiae. Rovnoecus gen. nov. is most similar to the fossil genus Eoxyloecus Budrys, 1993 from the Baltic amber. The two genera form a monophyletic group that is a sister group to the group formed by the genera Passaloecus Shuckard, 1837 and Eopinoecus Budrys, 1993. This indirectly corroborates the hypothesis of the geographically different origin of the Rovno and Baltic ambers.

Research paper thumbnail of New genus and species of Aleyrodidae from the Eocene Baltic amber (Hemiptera: Sternorrhyncha: Aleyrodomorpha).

A new genus Rovnodicus gen. n., with new species Rovnodicus wojciechowskii sp. n. is described fr... more A new genus Rovnodicus gen. n., with new species Rovnodicus wojciechowskii sp. n. is described from Eocene Rovno amber, Ukraine. It is placed in the subfamily Aleurodicinae. It is the first whitefly from this fossil source. Its morphological features and taxonomic position with respect to other Aleurodicinae from the Eocene are briefly discussed. The article outlines the influences of this finding on discussions of the origin, age and taxonomic similarities between Baltic amber from Ukraine and that from the Gulf of Gdańsk and Bitterfeld as well as on palaeoecological reconstructions of the fossil site. The name ‘Aleurochiton eozaenicus WEIGELT 1940’, mentioned as the fossil puparium of a whitefly from the Middle Eocene Geiseltal Fossillagerstätte appears to be nomen nudum.

Research paper thumbnail of Orthoclads from Eocene Amber from Sakhalin (Diptera: Chironomidae, Orthocladiinae)

Insect Systematics & Evolution, 2015

ABSTRACT Four Middle Eocene orthoclad species, Heterotrissocladius naibuchi sp. n., Paraphaenocla... more ABSTRACT Four Middle Eocene orthoclad species, Heterotrissocladius naibuchi sp. n., Paraphaenocladius nadezhdae sp. n., Pseudosmittia kodrulae sp. n. and Smittia sukachevae sp. n.. are described and figured. Based on the combination of the diptera fauna composition and paleobotanical data, suggestions on the climate and habitats of the Sakhalin amber forest are given.

Research paper thumbnail of The First Eocene Species of the Genus Micrambe (Coleoptera, Clavicornia, Cryptophagidae)

Research paper thumbnail of New Gall Midges (Diptera, Cecidomyiidae) from the Rovno Amber: Subfamily Lestremiinae, Tribes Strobliellini and Campylomyzini; Subfamily Porricondylinae, Tribes Diadocidiini and Asynaptini

Research paper thumbnail of A Comparative analysis of the Baltic and Rovno Amber arthropod faunas: Representative Samples

African Invertebrates

A comprehensive comparison is provided for the first time for arthropod-assemblage compositions i... more A comprehensive comparison is provided for the first time for arthropod-assemblage compositions in Rovno and Baltic ambers, based on representative samples from Klesov (Pugach) and Dubrovitsa (Vol'noje) quarries (1256 fossils) and Yantarny quarry (757 fossils), respectively. A representative collection of Baltic amber was taken in Yantarny at the local mining factory (only smaller pieces that fitted through a 32 mm sieve were selected). A representative collection of Rovno amber was taken at the factory "UkrAmber" (Rovno). Results indicate the compositions of the assemblages to be different enough to consider the origin of Rovno and Baltic ambers as geographically different. The relative abundance of mites (Acari) in the Rovno sample is 0.6 times that in the Baltic sample (the share of dominant "Acarus" rhombeus Koch & Berendt in the Rovno smple is 0.3 times that in Baltic amber), and the relative abundance of Homoptera in the Rovno sample is almost half of that in the Baltic sample (mainly due to relative rarity of both the dominant aphid Germaraphis, whose share is 0.2 times that in the Baltic sample, and the scale insects). Within Diptera, the proportion of Chironomidae is almost half, and Sciaridae twice that of the Baltic sample. In terms of ants (Formicidae), the proportion of Ctenobethylus goepperti (Mayr) in the Rovno sample is half of that in the Baltic sample. The most striking are differences in species-level composition: 9 of 37 ants found in the Rovno representative sample belong to species and genera unknown in Baltic amber. Some differences encountered are of an ecological nature: aquatic and subaquatic arthropods are comparatively rare and leaf-litter dwellers of the Sciara zone are very abundant in Rovno amber. The age of the Baltic amber and stratigraphic correlation of the amber-bearing Prussian Formation are also considered in some detail. It is concluded that the proposal for their Ypresian-Lutetian age contradicts a wide array of the palaeontological, radiological, and stratigraphic data and thus cannot be accepted on the basis of available evidence.

Research paper thumbnail of New Species of Gall Midges (Diptera, Cecidomyiidae) from Rovno Amber: Subfamily Lestremiinae, Tribes Micromyiini and Peromyiini

The origin and age of Rovno amber are reviewed. Eight new species of gall midges assigned to the ... more The origin and age of Rovno amber are reviewed. Eight new species of gall midges assigned to the genera Micromyia, Aprionus , and Heterogenella (Micromyiini) and Peromyia and Conarete (Peromyiini) are described from Rovno amber.

Research paper thumbnail of First Records of Scolebythidae And Chrysididae (Hymenoptera, Chrysidoidea) In Rovno Amber

Vestnik Zoologii, 2013

First Records of Scolebythidae and Chrysididae (Hymenoptera, Chrysidoidea) in Rovno Amber. Perkov... more First Records of Scolebythidae and Chrysididae (Hymenoptera, Chrysidoidea) in Rovno Amber. Perkovsky E. E., Rasnitsyn A. P. -Recorded from the Late Eocene Rovno amber (Ukraine) are above 300 families of Arthropoda. One hundred, seventy-four new species, 35 new genera and one new tribe have been described there in 45 families, including 42 species, 9 genera and one tribe of Hymenoptera. The first record of Scolebythidae is documented herein along with more detail information about Chrysididae which was only mentioned there before. Chrysidids are diverse and not very rare in the Rovno amber: four known inclusions represent at least three species in two genera. This makes a contrast with the Baltic amber: of 34 specimens known to Brues (1933), 30 represent only two species. Genera Pristapenesia Brues, Palaeobethylus Brues and Palaeobethyloides Brues and species Palaeobethylus politus Brues and Pristapenesia primaeva Brues, previously known in Baltic amber only, are recorded in Rovno amber as well.

Research paper thumbnail of First record of a Chironomidae pupa in amber

Geobios, 2015

ABSTRACT A pupal exuviae of a non-biting midge (Chironomidae) is recorded in Eocene Rovno amber f... more ABSTRACT A pupal exuviae of a non-biting midge (Chironomidae) is recorded in Eocene Rovno amber from Ukraine. The exuviae belongs to an Orthocladiinae species. It possesses several traits characteristic for terrestrial species including non-fringed anal lobes without macrosetae, tergites with only minute shagreen, bare conjunctives, and absence of thoracic horns and frontal warts. Up to now, this is the earliest record of a preimaginal stage of Orthocladiinae, and the only record of a chironomidae pupal exuviae from amber.

Research paper thumbnail of First Record of Mites of the Family Stigmaeidae (Acari, Raphignathoidea) from Rovno Amber with Description of a New Species of the Genus Mediolata

Research paper thumbnail of First records on non-biting midges (Diptera: Chironomidae) from the Rovno amber

Research paper thumbnail of New gall midge taxa of the subfamilies porricondylinae and lasiopterinae (Diptera, Cecidomyiidae) from the Rovno amber

Research paper thumbnail of Fourth Contribution on Late Eocene Amber Silken Fungus Beetles: A New Baltic Amber Species of Atomaria (Coleoptera, Clavicornia, Cryptophagidae)

Research paper thumbnail of Gall midges of the supertribe Stomatosematidi (Diptera, Cecidomyiidae) in the Palaearctic Region, with descriptions of new taxa from the Late Eocene Rovno amber: 1. Stomatosema, Vanchidiplosis, Clarumreddera gen. n

Entomological Review, 2012

ABSTRACT One new genus (Rovnodidactylomyia Fedotova et Perkovsky, gen. n.) and four new species (... more ABSTRACT One new genus (Rovnodidactylomyia Fedotova et Perkovsky, gen. n.) and four new species (Didactylomyia dlusskyi sp. n., Rovnodidactylomyia zosimovichi gen. n. et sp. n., R. sidorenkoi sp. n., and R. iconica sp. n.) are described from an amber sample of the late Eocene Period (Rovno District, Ukraine). Two species from a Baltic amber sample of the late Eocene Period, described earlier in the genus Bryocrypta, are attributed to the genus Rovnodidactylomyia (R. girafa (Meunier, 1904) comb. n. and R. capitosa (Meunier, 1904)). The first fossil species of the genus Didactylomyia is described for the first time; two contemporary Palaearctic species are recorded. Keys to the species of the genus Didactylomyia are given.

Research paper thumbnail of Gall midges of the supertribe stomatosematidi (Diptera, Cecidomyiidae) in the Palaearctic region, with description of new taxa from the Late Eocene Rovno amber: 3. Groveromyia gen. n. analysis of biometric parameters of the recent and late eocene genera and species

Entomological Review, 2012

ABSTRACT The new genus Groveromyia gen. n. was described from the Late Eocene Rovno amber. The ge... more ABSTRACT The new genus Groveromyia gen. n. was described from the Late Eocene Rovno amber. The genus includes 4 species: G. occlusa sp. n., G. digna sp. n., G. astrosa sp. n., and G. concinna (Fedotova, 2005) comb. n. (Bryocrypta). Some changes in the biometric parameters of the genera and species were revealed relative to those in the recent and the Late Eocene Stomatosematidi. Keys to the recent and fossil genera of the tribe Stomatosematidi and the species of the genus Groveromyia are given.

Research paper thumbnail of A new species of the genus Disogmus Förster (Hymenoptera, Proctotrupoidea, Proctotrupidae) from the Eocene Rovno amber

ZooKeys, 2011

Disogmus rasnitsyni Kolyada & Perkovsky, sp. n. is described from a fossil inclusion of Late Eoce... more Disogmus rasnitsyni Kolyada & Perkovsky, sp. n. is described from a fossil inclusion of Late Eocene amber (Ukraine). The new species is most similar to D. basalis (Thomson, 1857), in particular, in the shape of the tyloids and the general shortening of the segments of antennae, but distinctly differs from it and the other species of the genus by having tyloids on flagellar segments 2-4 compared to 3-6 and 4-7 in other species.

Research paper thumbnail of Third contribution on Rovno amber silken fungus beetles: a new Eocene species of Cryptophagus (Coleoptera, Clavicornia, Cryptophagidae)

ZooKeys, 2011

Cryptophagus alexagrestis Lyubarsky & Perkovsky, sp. n. is described based on a fossil in... more Cryptophagus alexagrestis Lyubarsky & Perkovsky, sp. n. is described based on a fossil inclusion in Late Eocene Rovno amber (Ukraine). The new species is similar to the extant Cryptophagus skalitzkyi Reitter and Cryptophagus dilutus Reitter, differing from the latter by having a very transverse, short and dilated 10th antennal segment, and from the former by the very elongate segments of the flagellum.

Research paper thumbnail of New gall midges of the tribe Leptosynini (Diptera, Cecidomyiidae) from the Late Eocene ambers and the classification of the supertribe Heteropezidi

Paleontological Journal, 2009

Research paper thumbnail of New species of the tumbling flower beetle genus Glipostena (Insecta: Coleoptera: Mordellidae) from Rovno amber

Paleontological Journal, 2009

A new fossil species of the tumbling flower beetle genus Glipostena is described from Rovno amber... more A new fossil species of the tumbling flower beetle genus Glipostena is described from Rovno amber. It differs from its recent and fossil congeners in the shapes and proportions of the antennomeres, and the number and position of lateral ridges on the hind tibia.

Research paper thumbnail of A new species of the scraptiid beetle genus Anaspis (Insecta: Coleoptera: Scraptiidae) from the Baltic and Rovno ambers (Upper Eocene of Eastern Europe)

Paleontological Journal, 2009

ABSTRACT

Research paper thumbnail of Rovnoecus, a new genus of digger wasps (Hymenoptera, Crabronidae, Pemphredoninae) from the Rovno amber

Paleontological Journal, 2009

A new fossil digger wasp Rovnoecus klesovicus gen. et sp. nov. (Hymenoptera, Crabronidae, Pemphre... more A new fossil digger wasp Rovnoecus klesovicus gen. et sp. nov. (Hymenoptera, Crabronidae, Pemphredoninae, Pemphredonini) is described from the Upper Eocene Rovno amber. The genus Rovnoecus gen. nov. is characterized by an incomplete occipital carina, partly reduced second discoidal cell, and the presence of spines on all tibiae. Rovnoecus gen. nov. is most similar to the fossil genus Eoxyloecus Budrys, 1993 from the Baltic amber. The two genera form a monophyletic group that is a sister group to the group formed by the genera Passaloecus Shuckard, 1837 and Eopinoecus Budrys, 1993. This indirectly corroborates the hypothesis of the geographically different origin of the Rovno and Baltic ambers.