Homoneura (Homoneura) procerula, Gao & Yang, 2005

Gao, Caixia & Yang, Ding, 2005, Notes on the genus Homoneura from Guizhou, China (Diptera: Lauxaniidae), Zootaxa 1010 (1), pp. 15-24 : 20-22

Homoneura (Homoneura) procerula sp. nov.

( Figs. 13–18 )

Body length 3 mm (male); wing length 3 mm (male). Female unknown.

Head yellow. Frons about as long as wide and slightly converging forward, with 2 brown stripes extending to ocellar triangle and 3 brown spots beside the stripes; ocellar triangle brown; ocellar bristle developed, longer than anterior fronto­orbital bristle; face with stripe on vertical edge, around antenna with brown spots on face and parafacial; gena about 1/7 height of eye. Antenna yellow; 1 st flagellomere with brown apical portion, 1.3 times as long as wide; arista black except yellow base, with longest hairs about as long as 1/2 width of 1st flagellomere. Proboscis yellow, with black and yellow hairs; palpus brown, with black hairs.

Thorax yellow, with many brown spots. 0+3 dc, anteriormost dc very close to transverse scutal suture, acr in 4 regular rows and some setulae of two central rows longer, prsc shorter than anteriormost dc. Legs yellow, femur brown with yellow apex. Fore femur with 4 posterior ventral bristles, 5 posterior dorsal bristles, and ctenidium with 8 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. 13 ) brown with many hyaline spots; costa with 2nd, 3rd and 4th sections in proportion of 8:3.4:2.5; r­m before middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 7:5.6; ultimate section of CuA 1 about 1/5 of penultimate. Halter white.

Abdomen yellow, with many brown spots. Male sternite 5 without concave distal bor­ der. Genitalia (male) ( Figs 14–18 ): Protandrium semicircular, 7th spiracle without sur­ rounding setulae; surstylus short, basally partly fused with epandrium, apically not furcated, and with pointed tip; hypandrial apodemes short, gonopod long and pointed apically; aedeagus long, pointed apically.

Type material. Holotype male deposited in CAU, Guizhou: Fanjingshan Mountain (27°55’N, 108°41’E) (600 m), 2002. VI. 4, Ding Yang.

Remarks. The new species is very similar to Homoneura (Homoneura) picta (De Meijere, 1904) from Java, but can be separated from the latter by the hypandrial apodemes

and aedeagal apodeme being short and small. In picta , the hypandrial apodemes and aedeagal apodeme are rather long ( Sasakawa 1992).

Etymology. The specific name refers to the short aedeagal apodeme.

Distribution. China (Guizou).

Figures

FIGURES 13–18. Homoneura procerula, sp. nov., male. 13. Wing; 14. epandrium and protandrium, lateral view; 15. protandrium, anterior view; 16. epandrium, posterior view; 17. aedeagal complex, lateral view; 18. aedeagal complex, posterior view.