Diomma (Diomma) sangzhiensis, 2018

Cao, Yanghui, Dmitriev, Dmitry A. & Zhang, Yalin, 2018, New species of the leafhopper genera Kusala Dworakowska and Diomma Motschulsky (Hemiptera: Cicadellidae: Typhlocybinae: Erythroneurini) with description of a new subgenus, Zootaxa 4514 (2), pp. 263-272 : 271-272

Diomma (Diomma) sangzhiensis sp. nov.

( Figs 4 , 5 m–p)

Description. Ground color ( Figs 5 m–p) yellowish-brown, face dark, eyes black. Vertex with pair of dark patches. Pronotum with fore margin yellowish-brown, midline and hind margin of pronotum grey bordered with dark brown. Brochosome field of forewing grey. Crown fore margin rounded in dorsal view, anteclypeus ovoid. Hind wing ( Fig. 4b ) with av almost complete between AP’+AA and CuP.

Male 2S abdominal apodemes ( Fig. 4c ) not extended to hind margin of sternite IV. Anal tube appendage ( Fig. 4d ) very short and weakly sclerotized.

Pygofer lobe ( Fig. 4d ) with group of macrosetae in middle area and some fine setae near ventral and caudal margins; dorsal appendage ( Fig. 4e ) thick, apex pointed and sharply bent cephalad. Subgenital plate ( Fig. 4g ) with about 6 macrosetae, apical ones much thinner than basal ones, with row of microsetae along outer margin. Style ( Fig. 4h ) stout, apical part thick and straight. Connective ( Fig. 4i ) with manubrium very narrow, lateral arms horizonal, in a line. Aedeagal shaft ( Figs 4j, k ) almost straight, dorsal and lateral margins serrated, apex blunt in lateral view, widened basally and tapering towards apex in ventral view; dorsal apodeme well developed, narrow and long in lateral view; preatrium as long as shaft, widened near preatrial process, process narrow and long; gonopore middle on ventral margin.

Diagnosis. The new species has av of hind wing developed basally (between AP’+AA and CuP), which is similar to Diomma (Diomma) knighti Dworakowska, 1981 , but different with most other species in Diomma . The male genitalia of the new species is very close to Diomma (Diomma) pincersa Song, Li & Xiong, 2011 , but the pygofer dorsal appendage is bent cephalad, the subgenital plate is much wider and has a straight outer margin, the style has shorter, thicker apical part and the lateral arms of the connective are shorter.

Measurement. Male length 2.70mm.

Material examined. Holotype: ♂, CHINA, Hunan Prov., Sangzhi , 0 6 ix 1981, coll. Xinwang Tong.

Etymology. The new species name is an adjective referring to the type locality, Sangzhi.

Figures

FIGURE 4. Diomma (Diomma) sangzhiensis sp. nov. a. forewing; b. hind wing; c. 2S abdominal apodemes; d. genital capsule; e. pygofer dorsal appendage; f. subgenital plate; style and connective; g. subgenital plate, dorsal view; h. style, dorsal view; i. connective; j. aedeagus, lateral view; k. aedeagus, ventral view

FIGURE 5. a–d. Kusala (Kusala) viraktamathi sp. nov.; e–h. Kusala (Scodela) directa sp. nov.; i–k. Kusala (Scodela) sinuata sp. nov.; m–p. Diomma (Diomma) sangzhiensis sp. nov.