Hepatics from Rovno amber (Ukraine), 6. Frullania rovnoi,sp. nov.

A fossil species of the extant liverwort genus Frullania Raddi is described and illustrated, based on a single inclusion in a piece of Rovno amber (Ukraine) that shares its age with Late Eocene Baltic amber, its northern contemporary. Frullania rovnoi is characterised by leaves with a rounded dorsal lobe and the absence of ocelli. The ventral lobe is inflated and forms a saclike lobule, which is bell-shaped and somewhat constricted above the mouth. The bifid underleaves have several blunt teeth or angulations along the shoulder. The Rovno fossil differs sufficiently from morphologically similar species preserved in Baltic and Bitterfeld amber as to be described as new to science. The shape of the lobules and underleaves, as well as the absence of ocelli, indicate an affiliation to F. sect. Australes, hitherto represented in Eocene amber inclusions solely by F. schumannii (Casp.) Grolle. The Rovno fossil is distinguished from extant species of F. subg. Australes and from F. schumannii by having roughly and irregularly dentate-angulate underleaf margins.     

Archaeotinodes ivanovi sp. nov., a new fossil species of Ecnomidae (Insecta: Trichoptera) from the Baltic amber

Archaeotinodes ivanovi sp. nov., a new species of the fossil genus Archaeotinodes, is described from the Eocene Baltic amber. The new species is generally similar to A. pauper Ulmer, 1912 and A. igneusaper Melnitsky, 2009 from the Baltic amber and to A. reveraverus Melnitsky et Ivanov, 2010 from the Rovno amber.     

<Emphasis Type="Italic">Rovnodiplosis eduardi</Emphasis> gen. et sp. nov., the first record of a fossil gall midge of the supertribe Mycodiplosidi (Diptera,Cecidomyioidea, Cecidomyiidae) in the Late Eocene of the Rovno amber

Higher gall midges of the supertribe Mycodiplosidi, subfamily Cecidomyiinae, are recorded for the first time in Late Eocene Rovno amber. In other fossil resins, Mycodiplosidi have not yet been recorded. A male Rovnodiplosis eduardi gen. et sp. nov. (Mycodiplosidi), with distinctive binodose flagellomeres having long loopy sensilla is described. Species of Cecidomyiinae known from fossil resins are listed.     

Thrips (Thysanoptera, Insecta) from the Rovno amber, Eocene of Ukraine

Seventy-six thrips were discovered in Rovno amber. Among these, 67 were identified to suborder, 52, to family, 45, to genus, and 41, to species level. In total, five species, six genera, five families, and two suborders are recorded. No undescribed taxa have been found so far. All the identified thrips, except those of the genus Phloeothrips, belong to fossil taxa, previously known only from the Baltic and Bitterfeld ambers. However, the composition of species in the Rovno amber is highly unusual due to domination of Praedendrothrips avus Priesner, 1924. This species, rare in the Baltic amber, constitutes 49% of all the Rovno records. Thus, the Rovno amber, in contrast to the Baltic and Bitterfeld ambers, is characterized by poor taxonomic diversity of thrips and presence of a clearly dominant species.     

Trjapitzion Simutnik,gen. n. (Hymenoptera,Chalcidoidea: Encyrtidae), a New Genus of Encyrtid Wasps from the Late Eocene Rovno Amber

Entomological Review - Trjapitzion cylindrocerus Simutnik, gen. et sp. n. is described based on a female specimen from the Late Eocene Rovno amber. A brief comparative morphological analysis of the...     

<Emphasis Type="Italic">Dencyrtus</Emphasis> gen. nov. (Hymenoptera,Chalcidoidea, Encyrtidae) from the Late Eocene Danish Amber

Based on two females from the Danish amber collection of the Zoological Museum of University of Copenhagen, Dencyrtus vilhelmseni gen. and sp. nov. is described. The antennae of the new genus are very similar in structure to that of Eocencyrtus Simutnik, 2001 from the Rovno and Baltic ambers. However, the presence of the filum spinosum on the linea calva of the forewing disc indicates that it belongs to a different subfamily.     

Comparing Arachnids in Rovno Amber with the Baltic and Bitterfeld Deposits

Paleontological Journal - So far 107 families of chelicerates are known from the Rovno amber, which is comparable with those known from the Baltic amber (144 families) and three times more than in...     

Mosses from Rovno Amber (Ukraine). 5. New Findings and Comparison of Mosses from Rovno and Baltic Amber

Paleontological Journal - Two new species are described from the Late Eocene Rovno amber: Sematophyllites katyae Ignatov and Ignatova sp. nov. and S. rovnoi Ignatov and Ignatova sp. nov., and S....     

Ants of the Genus <Emphasis Type="Italic">Fallomyrma</Emphasis> Dlussky et Radchenko (Hymenoptera,Formicidae, Myrmicinae) from Late Eocene European Ambers

The extinct monotypic ant genus Fallomyrma was described by Dlussky and Radchenko in 2006 based on workers from Late Eocene Rovno (Ukraine), Scandinavian (Denmark), and Bitterfeld (Germany) ambers. Three new Fallomyrma species from the Rovno amber are here described based on workers: F. anodonta sp. nov., F. marginata sp. nov., and F. robusta sp. nov. A key to all known species of this genus is compiled. The quantity ratios (of the numbers of species and specimens) of Fallomyrma and other amber Myrmicinae genera are considered. The opinion of the autochthonous origin of the Rovno amber is confirmed.     

Eohelea sinuosa (Meunier, 1904) (Diptera, Ceratopogonidae) in Late Eocene ambers of Europe

Differences between ceratopogonid faunas from different Late Eocene ambers are almost as great as between ant faunas and give evidence of their different geographical origins. The greatest similarity is recorded between ceratopogonid faunas of the Rovno and Danish ambers; it manifests itself, in particular, in the presence of Leptoconops, abundant Eohelea sinuosa, and rather frequent occurrence of Meunierohelea. Eohelea sinuosa is the most abundant ceratopogonid species in the Rovno amber. The abundance of Eohelea is probably accounted for by the abundance in these assemblages of small chironomids, with terrestrial larvae; which composed 40% of the Rovno amber chironomid fauna and were probably prey to Eohelea. It is shown for the first time that Ceratopogonini with feminized male antennae (with reduced plume) occur three times as often in syninclusions of specimens of both sexes (63% of all Eohelea inclusions from the Rovno amber);this is evidence that Ceratopogonini with feminized male antennae turned to mating on substrate. This supports the hypothesis of Dinwiddie and Rachootin (2011) that wing organs of female Eohelea were not used for stridulation.     

New species of Late Eocene dermestid beetles (Coleoptera, Dermestidae) from the Rovno and Baltic ambers

Fossil beetles of the family Dermestidae are reviewed. Three new species are described: Dermestes progenitor and Megatoma electra from the Baltic amber and Dermestes vetustus from the Rovno amber (Late Eocene).     

Occurrence of ant (hymenoptera, formicidae) and aphid (homoptera, aphidinea) syninclusions in Saxonian and Rovno ambers

Ant species found as syninclusions with aphids in Rovno and Saxonian ambers are listed for the first time. In a collection of 143 pieces of Rovno amber with worker ants, aphids were found in only one syninclusion with Ctenobethylus goepperti (Mayr). In a collection of Saxonian amber, 53 aphids of the genus Germaraphis were found in 152 amber pieces with ant workers; five syninclusions with aphids contained 19 specimens of C. goepperti; two syninclusions contained ten specimens of Lasius schiefferdeckeri Mayr; and three syninclusions contained one specimen each: one Camponotus mengei Mayr, one Anonichomyrma constricta (Mayr), and one Formica flori Mayr. Considering that the Rovno and Saxonian collections are nearly equal in the number of amber pieces, the fundamental difference in the number of syninclusions is striking. The number of C. goepperti in syninclusions is disproportionately high; the proportion of syninclusions with aphids and C. goepperti is 1.6 times that of all inclusions of workers of this species. They are found in 31% of examined inclusions of workers in the collection of the Saxonian amber, but in 50% of syninclusions of the entire collection. This strongly suggests that C. goepperti and Germaraphis formed an association during their lifetime.     

A new species of Micromalthidae (Coleoptera) from the Rovno amber: 1. Adult morphology

Micromalthus priabonicus sp. nov. from the Late Eocene Rovno amber (Ukraine) is described. The new species is readily distinguished from M. eocenicus Kirejtshuk et al., 2010 from the Early Eocene amber of Oise in France by the shorter body, unequal length of antennomeres 3 and 4, ovate terminal antennomere, less transverse head, transverse scutellum, and by the considerably shortened adsutural elytral margin.     

A new species of the genus <Emphasis Type="Italic">Caulophilus</Emphasis> Woll. (Coleoptera: Curculionidae: Cossoninae) from the Rovno amber

Caulophilus zherikhini, sp. nov. (Curculionidae: Cossoninae) is described from the Late Eocene Rovno amber. The new species is distinguished from all known species of the genus by its longer rostrum. It is especially similar to C. falini Davis et Engel, 2007 from Dominican amber, from which it probably differs also in the more strongly curved rostrum, less flattened body, longer and narrower profemur, and shorter elytral setae.     

First Record of the Late Eocene Ichneumon Fly <Emphasis Type="Italic">Rasnitsynites tarsalis</Emphasis> Kasparyan (Ichneumonidae,Townesitinae) in Ukraine Confirms Correlation of the Upper Eocene Lagerstätten

Rasnitsynites tarsalis Kasparyan (Ichneumonidae, Townesitinae) described from the Baltic amber is recorded for the first time in the Rovno amber (Gulyanka, Zhitomir Region); therefore, this is the southernmost and easternmost find of Townesitinae. The presence of numerous extinct taxa of Townesitinae and tribes of Hybrizoninae Blanchard 1845 = Paxylommatinae Förster, 1862 = Hybrizontinae Marshall, 1872 confirms close relation of the Bembridge Marls fauna (Upper Eocene of England) and that of the succinites (Baltic, Rovno, and other Late Eocene European ambers); they are common in the succinites and in the Bembridge Marls and are only known from these localities.     

New Records of Upper Eocene Chrysidoid Wasps (Hymenoptera: Chrysidoidea) from Basins of Styr and Stokhod Rivers (Rovno Amber)

Paleontological Journal - Three species of chrysidoid wasps, Palaeobethylus longicollis (Chrysididae), Dryinus wunderlichi and D. reifi (Dryinidae) are recorded for the first time for Rovno amber...     

The first record of Embolemidae (Hymenoptera Chrysidoidea) in the Rovno amber (Upper Eocene) of Ukraine: A male of <Emphasis Type="Italic">Ampulicomorpha succinalis</Emphasis> brues

A male of Ampulicomorpha succinalis Brues (Hymenoptera Chrysidoidea: Embolemidae) from the Upper Eocene Rovno amber (34–37 Ma) is described for the first time.     

A new genus and species of gall midges of the supertribe Heteropezidi (Diptera,Cecidomyiidae) found in Eocene amber from Sakhalin

A new genus and species of pedogenetic gall midge, Estoperpetua sakhalinica gen. et sp. nov., of the tribe Heteropezini (subfamily Lasiopterinae) is described. Gall midges have not been recorded in Eocene amber of Sakhalin. A female with 4-segmented tarsi, large transparent triangular sensoria on flagellomeres, short wings and legs, and long 2 + 9-segmented antennae is described. Heteropezidi shows the greatest generic and species diversity in the Late Eocene Rovno amber. Representatives of this supertribe were also found in the Late Eocene Baltic amber, Early Eocene Oise amber, Miocene amber from Mexico and Dominican Republic, and African copal. Heteropezidi from different amber faunas are reviewed.     

Differences in ant (Hymenoptera,Formicidae) species composition between weight fractions of Rovno amber

The first syninclusion of the myrmicine Monomorium mayrianum Wheeler (two workers) and the aphid Germaraphis ungulata Heie (one nymph) is described from the Bitterfeld amber. Additionally, G. ungulata is recorded in a syninclusion with Ctenobethylus goepperti (Mayr) in the Rovno amber for the first time.