Homoneura (Homoneura) lii, Gao & Yang, 2005

Gao, Caixia & Yang, Ding, 2005, Notes on the genus Homoneura from Guizhou, China (Diptera: Lauxaniidae), Zootaxa 1010 (1), pp. 15-24 : 18-20

Homoneura (Homoneura) lii sp. nov.

( Figs 7–12 )

Body length 5.1–5.8 mm (male), 5.3–6.1 mm (female); wing length 5.7–6.4 mm (male), 5.5–6.1 mm (female).

Head yellow. Frons wider than long, parallel­sided, with 2 pale brown stripes; ocellar triangle brown; ocellar bristle developed, longer than anterior fronto­orbital bristle; face without spots; gena about 1/4 height of eye. Antenna yellow; 1 st flagellomere somewhat pale brown, about 1.5 times as long as wide; arista black except yellow­brown base, with longest hairs as long as 1/2 width of 1 st flagellomere. Proboscis yellow, with black and yellow hairs; palpus yellow, with black hairs.

Thorax yellow. 0+3 dc (anteriormost dc clearly behind transverse scutal suture), acr in 6 regular rows and equal in length, prsc about as long as anteriormost dc. Legs yellow. Fore femur with 5 posterior ventral bristles, 6 posterior dorsal bristles, and ctenidium with 12 short bristles. Mid femur with 6 anterior bristles; mid tibia with 1 preapical anterior dorsal bristle and 3 apicoventral spurs. Hind trochanter and femur without secondary characters. Wing ( Fig. 7 ) pale yellow, dark on apex of subcostal cell, subapically on R 2+3, and preapically on R 4+5 and M 1, and along crossvein dm­cu; spots on R 2+3 and R 4+5 confluent; preapical spot on M 1 pale and small; costa with 2nd, 3rd and 4th sections in proportion of 11.5:2:1.4; r­m at middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 6.1:3.8; ultimate section of CuA 1 about 1/6 of penultimate. Halter yellow.

Abdomen yellow, with central black stripes on tergites 3–8 and black edges on tergites 3–6 in male. Male sternite 5 with concave distal border. Genitalia (male) ( Figs 8–12 ): Protandrium rather wide, semicircular, 7th spiracle without surrounding setulae; surstylus basally fused with epandrium, apically furcated, with two outer processes; hypandrium with apodemes small, gonopod divaricated; aedeagus long, without apical incision.

Type material. Holotype male deposited in CAU, Guizhou: Fanjingshan Mountain (27°55’N, 108°41’E) (2100–2200 m), 2002. V. 31, Ding Yang . Paratypes 2 males 3 females, same as holotype; 2 males 2 females, Guizhou: Fanjingshan Mountain (27°55’N, 108°41’E) (1800–2200 m), 2002. VI. 1, Ding Yang .

Remarks. The new species is similar to Homoneura (Homoneura) bistriata ( Kertész, 1915) from Taiwan, but can be separated from the latter by the spots of the subcostal cell and r­m being separated, and the hypandrial apodemes are small. In bistriata , the spots of subcostal cell and r­m are confluent, and the hypandrial apodemes are distinct ( Kertész 1915; Sasakawa & Ikeuchi 1982).

Etymology. The species is named after Professor Zizhong Li.

Distribution. China (Guizhou).

Figures

FIGURES 7–12. Homoneura lii, sp. nov., male. 7. Wing; 8. epandrium and protandrium, lateral view; 9. protandrium, anterior view; 10. epandrium, posterior view; 11. aedeagal complex, lateral view; 12. aedeagal complex, posterior view.