Neotype designation and re-description of Prolachlanius resinatus (Hagen) (Neuroptera, Hemerobiidae) from Baltic amber, with the first record of the species from Rovno amber

Zootaxa ◽  
2019 ◽  
Vol 4688 (1) ◽  
pp. 57-70 ◽  
Author(s):  
VLADIMIR N. MAKARKIN ◽  
EVGENY E. PERKOVSKY ◽  
CARSTEN GRÖHN

Prolachlanius resinatus (Hagen) is re-described, based on five specimens from late Eocene Baltic amber (including the neotype designated herein) and the first recorded specimen from contemporaneous Rovno amber (Klesov locality). This is the most common species of Hemerobiidae in Baltic amber. The forewing venation of Prolachlanius is most similar to that of Sympherobius, and, therefore, its assignment to Sympherobiinae is confirmed. The genus differs from other Sympherobiinae by the distal branch of RP being not deeply forked, and the presence of crossvein 4r-m in the forewing. The male genitalia of Prolachlanius are sufficiently dissimilar from those of other Sympherobiinae to distinguish it as a separate genus, particularly by the structure of the ectoprocts, and the 8th and 9th sternites. The extremely short eighth sternite of Prolachlanius is especially noteworthy. 

2021 ◽  
pp. 1-8
Author(s):  
Andrei A. Legalov ◽  
Vitaliy Yu. Nazarenko ◽  
Dmitry V. Vasilenko ◽  
Evgeny E. Perkovsky

Abstract The beetle Ceutorhynchus is used as a proxy for Eocene core Brassicaceae. The age of Brassicaceae has been strongly debated because their fossil record is scanty. There are four species of Ceutorhynchus inaffectatus species-group known in the Priabonian: Ceutorhynchus zerovae new species in Rovno amber and three in Baltic amber. There are numerous extant members of the group, all of which feed on core Brassicaceae. Together with differentiation of Brassicaceae-feeding Pierinae (Lepidoptera) in the Priabonian, the strong presence of Ceutorhynchus indicates at least an early Priabonian age of core Brassicaceae. The oldest fossil Brassicaceae is not known in the late Eocene of Europe, but was recorded in Montana, dated in some studies as late Oligocene, but recently as Priabonian (34 Ma). Ceutorhynchus zerovae n. sp. is very close to C. electrinus from Baltic amber. UUID: http://zoobank.org/7f10761f-463d-44c5-9eef-bb4697bfb116.


2013 ◽  
Vol 47 (2) ◽  
pp. 14-19 ◽  
Author(s):  
E. E. Perkovsky ◽  
A. P. Rasnitsyn

, 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 BruesPalaeobethylus 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.


Fossil Record ◽  
2019 ◽  
Vol 22 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Andris Bukejs ◽  
Andrei A. Legalov

Abstract. A new weevil, Arostropsis perkovskyi Bukejs and Legalov, sp. nov. (urn:lsid:zoobank.org:act:408ECE71-B191-4381-AA39-C27A3A1DA082; Coleoptera: Curculionidae: Entiminae), is described from Late Eocene Rovno amber. The new species differs from Arostropsis groehni Yunakov et Kirejtshuk, 2011 from Baltic amber in the pronotum lacking a distinct lateral ridge, it has a shorter rostrum, antennomere 2 is subequal to antennomere 3, it has wider elytra with weaker convex humeral calli and the pronotum is wider than it is long. It is the first record of the tribe Naupactini in Rovno amber and the second finding of Arostropsis in Eocene ambers.


2020 ◽  
Vol 80 ◽  
pp. 137-145
Author(s):  
Serguei A. Simutnik ◽  
Evgeny E. Perkovsky ◽  
Dmitry V. Vasilenko

The large and distinctive chalcidoid wasp Leptoomus janzeni Gibson, 2008, originally described from late Eocene Baltic amber, is newly recorded from coeval Rovno amber (Ukraine) based on a single well-preserved female specimen. Only 66 species of Rovno hymenopterans (49%) are also known from Baltic amber. High resolution photomicrographs and measurements of the specimen are given. Some character states of the new specimen, such as a green metallic coloration, a bare and flat prepectus, location and number of multiporous plate sensillae on the flagellum, sclerotized spur vein of the hind wing, and two metatibial spur are reported in this species for the first time.


2010 ◽  
Vol 44 (6) ◽  
pp. e-49-e-51 ◽  
Author(s):  
N. Kuznetsov ◽  
A. Khaustov ◽  
E. Perkovsky

First Record of Mites of the Family Stigmaeidae (Acari, Raphignathoidea) from Rovno Amber with Description of a New Species of the Genus Mediolata A new species, Mediolata eocenica Kuznetsov, Khaustov et Perkovsky, sp. n., is described from the Late Eocene Rovno amber. It is the first fossil record of Stigmaeidae.


Zootaxa ◽  
2019 ◽  
Vol 4576 (3) ◽  
pp. 570 ◽  
Author(s):  
EVGENY E. PERKOVSKY ◽  
VLADIMIR N. MAKARKIN

Succinoraphidia radioni sp. nov. (Raphidiidae) is described from the late Eocene Rovno amber, Ukraine. The genus also includes two species from contemporaneous Baltic amber, i.e., S. exhibens Aspöck & Aspöck, 2004 and S. baltica (Carpenter, 1957), comb. nov. The venation of Succinoraphidia is analysed. It possesses several plesiomorphic character states at the family level, and the monotypic subfamily Succinoraphidinae represents a basal group within the family or possibly even a potential stem group of Raphidiidae. All diagnostic character states of Succinoraphidia (except the structure of the pterostigma) are found in a few Cretaceous species of the paraphyletic Mesoraphidiidae, but some of these are not found in the extant Raphidiidae. 


2021 ◽  
Vol 4 (6) ◽  
Author(s):  
ALEXANDER G. RADCHENKO

A new species of the fossil ant genus Drymomyrmex Wheeler, 1915, D. rasnitsyni sp. nov., is described from the late Eocene Rovno amber (Ukraine). This is the first find of a worker of this genus and the first record of Drymomyrmex in the Rovno amber. Based on the analysis of the morphological features of gynes and worker it is proposed to attribute Drymomyrmex to the tribe Plagiolepidini Forel, 1886.


2017 ◽  
Vol 51 (4) ◽  
pp. 275-284 ◽  
Author(s):  
E. E. Perkovsky

Abstract Of the three genera of Ceratopogoninae dominant in Late Eocene ambers of Europe, the two known are absent in the Early Eocene Cambay amber (India): the Holarctic genus Ceratopogon and the worldwide distributed genus Culicoides, known since the Late Cretaceous. Tropical biting midge genera (Meunierohelea and Leptoconops and genera with feminized male antennae: Camptopterohelea, Eohelea, and Gedanohelea) are abundantly represented in Cambay amber. The proportion of Ceratopogonini with feminized male antennae among all Ceratopogonidae dramatically increases from north to south: from 1.4-2.4 % in unbiased collections of Bitterfeld amber (Humboldt Museum collection) and Baltic amber (the Giecewicz collection) to 7 % in Danish amber and 12.7 % in Rovno amber; their proportion in Cambay amber is 17 %. The proportion of tropical specimens among specimens Ceratopogoninae in unbiased collections is 6.4 % in Baltic amber, 5.3 % in Bitterfeld amber, 21 % in Rovno and Danish amber, and 58 % in Cambay amber. Strong differences in the proportion of tropical components among Ceratopogoninae from different European ambers are in agreement with data on Cambay amber and so are indicative of origin of the European ambers under different climatic and hence geographic environments.


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