A Review Of The Genus Homoneura From Guangxi, China (Diptera: Lauxaniidae) Author Gao, Caixia Author Yang, Ding text Raffles Bulletin of Zoology 2004 52 2 351 364 journal article 10.5281/zenodo.4619516 2345-7600 A669EF2EFFFBFFECFF866F3DFFC7FFE4 4619516 Homoneura (Homoneura) longispina , new species ( Figs. 31-36 ) Material examined. – Holotype - male, Guangxi : Tianlin , Langping , 30 May.1982 , coll. Xinli Wang ( CAU ). Paratypes – 1 male , Guangxi : Tianlin , Langping , 30 May.1982 , coll. Jikun Yang ( CAU ) ; 1 female , Guangxi : Longsheng , Cujiang , 24 Jun.1982 , coll. Jikun Yang ( CAU ) . Diagnosis. – Wing with 5 brown spots on tip of R 2+3 to M 1+2, m-m, and preapical section of R 4+5; surstylus with long spinelike inner process. Description. – Body length 7.3-8.0 mm (male) or 7.3 mm (female), wing length 8.3-8.7 mm (male) or 7.6 mm (female). Head yellow, with dense yellow white dust. Frons broader than long, parallel-sided, with 2 pale brown stripes; ocellar triangle brown; oc developed, and as long as anterior or; face without spot. Cheek about 1/6 height of eye. Antenna yellow; 3rd segment yellow brown, 2 times as long as wide, yellow basally; arista black except testaceous base, with longest hairs as long as width of 3rd antennal segment. Proboscis yellow brown, its apex white yellow, with black and yellow hairs; palpus yellow, with black hairs. Thorax yellow, with yellow dust. 0+3 dc, acr in 10 rows, prsc longer than 1st post-sutural dc. Legs yellow. Fore femur with 4 posterior ventral bristles, 7-9 posterior dorsal bristles, and ctenidium with 12-13 short bristles. Mid femur with 6- 8 anterior bristles, mid tibia with 3 spurs. Wing pale yellow, with 5 brown spots on tip of R 2+3 to M 1+2, m-m, and preapical section of R 4+5; costa with 2nd, 3rd and 4th sections in proportion of 22.2:4.5:3.5; r-m before middle of discal cell; ultimate section of M 1+2 as long as penultimate; ultimate section of M 3+4 about 1/6 of penultimate. Halter yellow. Abdomen yellow to brown, with dense gray dust. Male genitalia ( Figs. 32-36 ): Protandrium long and broad, forming a sclerotized band with a ventral segment, without setulae around 7th spiracle ( Fig. 33 ); surstylus on epandrium with inner processs long spine-like and haired; hypandrial apodemes indistinct, gonopod long with curved apex; aedeagus with two dorsal hamuli at tip, and weakly incised apically ( Fig. 36 ). Etymology. – The species is named after the surstylus with long spine-like inner process. Distribution. – China ( Guangxi ). Remarks. – The new species is similar to Homoneura (Homoneura) serrata Gao & Yang, 2002 , from Guizhou and Figs. 25-30. Homoneura jiangi , new species , male. 25. wing. 26. epandrium and protandrium, lateral view. 27. protandrium, anterior view. 28. aedeagal complex, lateral view. 29. aedeagal complex, ventral view. 30. epandrium, posterior view. Figs. 31-36. Homoneura longispina , new species , male. 31. wing. 32. epandrium and protandrium, lateral view. 33. protandrium, anterior view. 34. epandrium, posterior view. 35. aedeagal complex, lateral view. 36. aedeagal complex, ventral view. Guangxi , but can be separated from the latter by the acr in 10 rows and aedeagus not dentate. In serrata , the acr is in 6-8 rows, and the aedeagus is dentate ( Gao & Yang, 2002 ).