Oncopsis tsejensis Tishetshkin, 1992

Tishechkin, Dmitri Yu., 2017, Review of the genus Oncopsis Burmeister, 1838 (Homoptera: Auchenorrhyncha: Cicadellidae: Macropsinae) of Russia and adjacent countries with description of a new species from Central Asia, Zootaxa 4216 (6), pp. 537-558 : 556

21. Oncopsis tsejensis Tishetshkin, 1992

Figs. 57–58 , 226–232

Description. Coloration of males typical ( Fig. 57 ), females pale greenish yellow with small dark spots on face, pro- and mesonotum ( Fig. 58 ).

In shape of male genitalia similar to O. flavicollis , O. carpini , and O. burjatica ( Figs. 226–231 ), but penis stem somewhat more strongly bent dorsally, than in above listed species ( Fig. 227 ). Abdominal apodemes of the 2nd tergite in male with widely rounded lobes separated by small notch ( Fig. 232 ).

Body length (including tegmina): ♂, 5.0 mm; ♀, 5.0– 5.5 mm.

Differs from O. flavicollis in shape of 2nd abdominal apodemes and host preference. Allopatric with O. burjatica and dwells on another host. Very similar to O. carpini in morphology and calling signal pattern; larger series from several localities are necessary to understand whether the observed morphological differences are of a specific nature. However, existence of a population on alder instead of hornbeam suggests that O. tsejensis is a separate biological species.

Host. Alnus barbata .

Distribution. Known only from the type locality: Tsey Gorge, North Ossetia, North Caucasus.

Figures

FIGURES 33 – 58. Oncopsis spp., lateral view and face. 33 – 35 ― O. obstructa, 36 – 37 ― O. tadzhica (36 ― holotype, 37 ― allotype), 38 – 40 ― O. ivanovae, 41 – 44 ― O. abdykulovi sp. n., 45 – 46 ― O. subangulata, 47 – 48 ― O. flavicollis, 49 – 51 ― O. carpini, 52 – 56 ― O. burjatica (53 – 54 ― paratypes from East Siberia, 52 and 55 – 56 ― specimens from Sakhalin), 57 – 58 ― O. tsejensis (57 ― holotype, 58 ― paratype).

FIGURES 202 – 232. Oncopsis spp., male genitalia and the 2 nd tergal apodemes. 202 – 225 ― O. burjatica (202 – 217 ― paratypes from East Siberia, 218 – 220 ― male from Eastern Kazakhstan, 221 – 225 ― male from Sakhalin), 226 – 232 ― O. tsejensis (227, 229 – 230 ― holotype, 226, 228, 231 – 232 ― paratype). 202, 221, 226 ― penis, caudal view, 203 – 204, 218, 222, 227 ― penis, lateral view, 205, 228 ― penis and dorsal connective, lateral view, 206, 225, 230 – 231 ― style, broadest aspect, 207 – 210, 219, 223, 229 ― lower appendage of dorsal connective, lateral view, 211 – 217, 220, 224, 232 ― the 2 nd tergal apodemes.