Samara State Agricultural Academy

Ust, Russia

Samara State Agricultural Academy

Ust, Russia
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Kaplin V.G.,Samara State Agricultural Academy | Sharapova Y.A.,Volga Region Research Institute of Selection and Seed Production
Entomological Review | Year: 2017

The aftereffects of the Russian wheat aphid (RWA) Diuraphis noxia on sowing and productive qualities of barley and spring bread wheat grain were assessed. Seeds of 4 cultivars of barley (Volgar, Povolzhsky 65, Kazak, and Povolzhsky 16) and 4 cultivars of spring wheat (Kinelskaya 59, Kinelskaya Otrada, Kinelskaya Niva, and Kinelskaya 2010) from spikes infested and uninfested with RWA in 2007 and in 2014 were sown in the subsequent years, using 0.5 m2 experimental plots in four replications, at a seeding rate of 300 grains/m2. The least significant difference (LSD0.5) was used to compare the mean ± standard deviation (SD) values. The field germination rate of seeds from spring wheat spikes damaged by RWA was reduced by 15%. Of the components of grain yield, barley and spring wheat grown from seeds from the infested spikes showed a 23-31% smaller number of productive tillers before harvesting, a 16% smaller number of grains per spike, a 13-16% lower grain weight per spike, and a total yield loss of 33-42%. In hulless bread wheat RWA fed on the developing kernels inflicting greater damage, whereas the hulled barley seeds were practically not damaged. The mean yield loss of the barley and spring wheat spikes infested with RWA was 24-32% and 50-66%, respectively. Due to the greater tillering capacity and formation of secondary productive tillers in barley, about 52% of the productive barley tillers and 37-39% of spring wheat ones were infested with RWA, which resulted in a comparable yield loss (20-25% in barley and 19-23% in spring wheat). Resistance to RWA was higher in spring wheat and barley cultivars with a shorter vegetation period, looser spikes, and thinner culm walls. The length of productive tillers damaged by RWA was reduced by 21-28%, which determined a lower incidence of leaf diseases. © 2017, Pleiades Publishing, Inc.


Three recent genera are included in the supertribe Stomatosematidi: Stomatosema (16 species), Vanchidiplosis (4 species), and Didactylomyia (3 species). Seven species of the genus Stomatosema and two species of the genus Vanchidiplosis occur in the Palaearctic. The reliable findings of representatives of the supertribe were not known in fossilized condition. One new genus and 3 new species are described from amber of the Late Eocene age (Rovno region): Stomatosema iljieteugeniae sp. n., Clarumreddera korneyevi gen. n. et sp. n. and C. conceptiva sp. n.


One new genus and two new species are described from an amber sample of the Late Eocene age (Rovno district, Ukraine): Didactylomyia dlusskyi sp.n., Rovnodidactylomyia zosimovichi gen. n. et sp. n., R. sidorenkoi sp. n. and R. iconica sp. n. Two species from a Baltic amber sample of the Late Eocene age described earlier (Bryocrypta - R. girafa (Meunier 1904) comb. n. and R. capitosa (Meunier 1904)) were referred to the genus Rovnodidactylomyia. The genus Didactylomyia at the fossil condition was described for the first time; two contemporary Palaearctic species are reported. Keys to the species of the genus Didactylomyia are given.


Fedotova Z.A.,Samara State Agricultural Academy | Perkovsky E.E.,Ukrainian Academy of Sciences
Paleontological Journal | Year: 2010

Three new genera and 27 new species of gall midges are described from the Late Eocene ambers: Henria baltica sp. nov., Frirenia manca sp. nov., F. musicata sp. nov., Leptosyna samlandica sp. nov., L. fastosa sp. nov. from Baltic amber and H. xystica sp. nov., H. liquida sp. nov., Stellasegna vlaskini gen. et sp. nov., S. vaporea sp. nov., S. nexa sp. nov., Rasnitsia verticosa gen. et sp. nov., F. rohdendorfi sp. nov., F. schevchenkoi sp. nov., F. melica sp. nov., F. lukashevichae sp. nov., F. leporidis sp. nov., F. marmarygma sp. nov., F. vesana sp. nov., Vincinescia alisae gen. et sp. nov., L. margarita sp. nov., L. munifera sp. nov., L. sukachevae sp. nov., L. assa sp. nov., L. larga sp. nov., L. vegeta sp. nov., L. vaticina sp. nov., and L. shcherbakovi sp. nov. from Rovno amber. Strobliella capitata Fedotova is redescribed as Henria capitata (Fedotova, 2004) (comb. nov.). Diagnoses of Henria (= Electroxylomyia Nel et Prokop, syn. nov.), Frirenia, and Leptosyna are revised. As a result, Henria comprises 3 extant and 5 extinct (Late Eocene) species, including H. eocenica (Nel et Prokop), comb. nov. (= Electroxylomyia eocenica), Frirenia comprises 1 extant and 10 Late Eocene species, and Leptosyna comprises 3 extant and 11 Late Eocene species. The tribe Heteropezini is elevated to the supertribal rank (Heteropezidi) and included in the subfamily Lasiopterinae. Leptosynini is treated as a separate tribe, and Lasiopterinae is considered as part of Cecidomyiidae s. str. (i. e., excluding Lestremiidae). Keys to the tribes and genera of Heteropezidi and to species of Henria, Stellasegna, Frirenia, and Leptosyna are provided. The gall midge faunas of the Rovno and Baltic ambers are compared. Phylogenetic relationships within the supertribe are hypothesized. © Pleiades Publishing, Ltd., 2009.


The new genus Groveromyia gen.n is described from the Late Eocene Rovno amber. It includes 3 new species - G. occlusa sp. n., G. digna sp. n., G. astrosa sp. n., and G. concinna (Fedotova, 2005) comb. n. (Bryocrypta). Some changes in biometric parameters of the genera and species were revealed in the comparison of the modern and Late Eocene Stomatosematidi. Keys for the identification of modern and fossil genera of the tribe Stomatosematidi and species of the genus Groveromyia are given.


Kaplin V.G.,Samara State Agricultural Academy
Entomological Review | Year: 2014

A new bristletail species, Allopsontus asiaticus sp. n., is described from Southeastern Kazakhstan. It is most similar to A. europaeus Kaplin, 1983 described from the southern coast of the Crimea. © 2014, Pleiades Publishing, Inc.


Kaplin V.G.,Samara State Agricultural Academy
Entomological Review | Year: 2013

A new bristletail species, Pedetontus phuketi sp. n., is described from Phuket Island, Thailand. It is most similar to P. hainanensis Yu, Zhang W.-W. et Zhang J.-Y., 2010 described from Hainan Island (China). The genus Pedetontus comprises 33 described species in two subgenera: Pedetontus s. str. (6 species) and Verhoeffilis (27 species). The subgenus Verhoeffilis has originated in the southeastern part of the Palaearctic Region. Its representatives migrated to North America in the Paleocene through the Bering Land Bridge which was sunken in the Eocene, so that the Nearctic centre of Pedetontus speciation became isolated and the subgenus Pedetontus s. str. has been formed. The Bering Land Bridge was formed at the end of the Miocene, and the backward migration of bristletails of the subgenus Pedetontus s. str. from the Nearctic to the Palaearctic occurred. Pedetontus palaearcticus was formed on Kamchatka. The southward migration of bristletails of the subgenus Verhoeffilis has led to formation of 10 Indo-Malayan species. © 2013 Pleiades Publishing, Inc.


A new bristletail species, Pedetontinus kabaki sp. n., is described from Sichuan Province, China. It possess faceted eyes clearly longer than wide, with the contact line shorter than 0.5, paired ocelli relatively closer to each other, and fore femur swollen. A key to 18 described species of the world fauna is given. The plesiomorphic and apomorphic states of 13 characters of Pedetontinus are considered; the phylogenetic relationships of species are discussed. © 2015, Pleiades Publishing, Inc.


Kaplin V.G.,Samara State Agricultural Academy
Entomological Review | Year: 2012

One new species, Lepidospora kwaii sp. n., is described from Thailand. Keys to the families, subfamilies, and genera of the family Nicoletiidae (Thysanura) and to the species of the genus Lepidospora of the world fauna are provided; data on the distribution and evolutionary trends of the bristletails of the genus Lepidospora are given. © 2012 Pleiades Publishing, Ltd.


Kaplin V.G.,Samara State Agricultural Academy
Zoologicheskii Zhurnal | Year: 2012

One new species, Lepidospora kwaii sp. n., from Thailand is described. Keys to identifying the Thysanura families, subfamilies and genera of the family Nicoletiidae, species of the genus Lepidospora of the world fauna are provided; the features of their distribution and evolutionary trends for bristletails of the genus Lepidospora are described.

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