Oncopsis burjatica Tishetshkin, 2008

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

20. Oncopsis burjatica Tishetshkin, 2008

Figs. 52–56 , 198–225

Description. Coloration of males typical ( Figs. 52–53 ), females from East Siberia similar to males or brown ( Fig. 54 ). Females from Far East greenish yellow with brownish apical two-thirds of forewings or bright yellow with transparent apical half of forewings ( Figs. 55–56 ).

In shape of male genitalia indistinguishable from O. flavicollis , O. carpini , and O. tsejensis ( Figs. 202–210, 218–219, 221–223, 225 ). In shape of the 2nd tergal apodemes differs from O. flavicollis , but sometimes similar to O. carpini and O. tsejensis ( Figs. 211–217, 220, 224 ). We have not found any significant morphological differences between populations from East Siberia ( Figs. 202–217 ), Kazakhstan ( Figs. 218–220 ), and the Far East ( Figs. 221– 225 ).

Body length (including tegmina): ♂, 4.2–5.1 mm; ♀, 4.4–5.6 mm.

Allopatric with all other species from O. flavicollis species group; the only species of this group occurring in Eastern half of Palaearctic.

Host. Betula pendula in East Siberia , B. platyphylla on Sakhalin, B. platyphylla var. japonica in Japan ( Okudera, 2014).

Distribution. Central and Eastern Kazakhstan; Russia: East Siberia, the Russian Far East including Sakhalin; Japan: Hokkaido, Honshu, Shikoku ( Okudera, 2014).

Remark. Comparison of calling signals of males from East Siberia (type locality: Buryatia, Irkut River Valley, environs of Mondy Village, recording at 24o C; Figs. 198, 200 ) and from Southern Sakhalin (environs of Sokol Town, recording at 23o C; Figs. 199, 201 ) supports the conspecificity of specimens from Siberia and the Far East.

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 194 – 201. Oncopsis spp., oscillograms and sonograms of male calling signals. 194 – 197 ― O. flavicollis (194 – 195 ― oscillogram and sonogram of the same signal at the same speed), 198 – 201 ― O. burjatica (198 and 200 ― paratype from East Siberia, 199 and 201 ― male from Sakhalin). Faster oscillograms of the parts of signals indicated as “ 196 – 197 ” and “ 200 – 201 ” are given under the same numbers.

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.