Antocha (Antocha) quadrifurca Alexander, 1971

Markevičiūtė, Radvilė, Podenas, Sigitas & Saldaitis, Aidas, 2021, New Antocha Osten Sacken (Diptera: Limoniidae) from Sichuan, China, Zootaxa 4969 (2), pp. 280-292 : 288

Antocha (Antocha) quadrifurca Alexander, 1971

( Figs 14 , 29–35 )

Antocha (Antocha) quadrifurca Alexander, 1971: 170–171 (description), 168 (illustration).

Diagnosis. Dark brownish-grey species; antenna black, flagellar segments oblong, oval ( Fig. 29 ); wing subhyaline, milky, pterostigma pale brown ( Fig. 30 ); tergite 9 narrowly transverse without lobes ( Figs 14 , 33 ); sternite 9 large, posterior border strongly convex ( Fig. 32 ); gonocoxite oblong, rounded ( Figs 14 , 31, 34, 35 ); outer gonostylus short, stout, apex obliquely truncate ( Fig. 31 ); interbase oblong, rounded at apex ( Figs 14 , 31 ); paramere forked at apex ( Figs 34, 35 ); apex of aedeagus flattened into lyrate plate with two small bumps ( Figs 14 , 31, 34, 35 ); lateral structures branched, connected at apex of aedeagus, inner branch approximately three times longer than outer branch ( Figs 14 , 31, 35 ).

Material examined. 1 ♂ (in ethanol): CHINA, W. Sichuan, road Yaan / Kangding Erlang Shan Mt. , H- 2161 m, N29.87340, E102.30970, 2017.IX.11–12, leg. A. Saldaitis ( NRC) .

Elevation range in China. Specimens were collected at 2161 m altitude.

Habitat. Small streams surrounded by mountainous mixed forest.

Distribution. The species was known previously only in India (Assam), and is herein newly recorded from China (Sichuan).

Figures

FIGURES 11–15. Distinctive features of genus Antocha in Sichuan, China. 11. male genitalia and genital structures, dorsal view of A. spiralis; 12. male genital structures and tergite 9 of A. constricta; 13. male genital structures and tergite 9 of A. multidentata; 14. male genital structures and tergite 9 of A. quadrifurca; 15. male genital structures and tergite 9 of A. pulchra sp. nov., paratype.

FIGURES 29–35. Antocha (Antocha) quadrifurca. 29. male antenna; 30. male wing; 31. male genital structures and aedeagus, dorsal view; 32. male sternite 9; 33. male tergite 9; 34. male genitalia, lateral view; 35. male genitalia, dorsal view.