48 T. OKADA 



LIODROSOPHILA Duda 

 Liodrosophila Duda, 1922 : 153. 



Type-species : Camilla coeruleifrons de Meijere, 1911 : 421 (Java). 



Key to Species 



1 Wings with black markings. Front and mesonotum granulose, moderately shining 



black. Legs yellow, fore tarsi black ..... bimaculata (p. 48) 



- Wings without black markings. Front and mesonotum smooth, glossy, not granulose. 



Fore tarsi yellow or yellowish grey, not black ....... 2 



2 Acrostichal hairs in two rows. Mesonotum somewhat shining blue, punctured 



onchopyga (p. 50) 



- Acrostichal hairs in six rows. Mesonotum glossy, not punctured .... 3 



3 Mesonotum usually brownish black. Clasper with a concave row of marginal teeth. 



Wings somewhat fuscous. Periorbit relatively broad, not narrowing anteriorly 



fuscipennis (p. 51) 



- Mesonotum enamel-blue-black. Clasper with a convex row of marginal teeth. Wings 



hyaline. Periorbit much narrowing anteriorly .... nitida (p. 54) 



Liodrosophila bimaculata sp. n. 



(Text-figs. 127-133) 



o\ $. Body about 25 mm. Head slightly broader than thorax. Eyes dark reddish brown 

 with thick long grey pilosity. Antennae with second segment black ; third orange-brown, 

 twice as long as broad. Arista with about six dorsal and two ventral long branches and a small 

 terminal fork. Palpus black, slender, with a very long apical black seta and a few shorter ventral 

 setae. Ocellar triangle bluish black, flat, not sharply demarcated. Mouth-parts black, thick. 

 Periorbit bluish black, moderately shining, granulose, somewhat convex, three-fourths as long as 

 front. Front moderately shining black, slightly bluish, fiat, quadrate, granulose. Face 

 moderately shining black, slightly bluish, not depressed ; buccal margin with a few transverse 

 fine linear grooves. Carina high, black, broader below, ventrally reaching three-fifths length of 

 face, flat above. Cheek moderately shining black, one-fifth as broad as the greatest diameter of 

 eye. Occiput black. Postverticals slender. Anterior reclinate orbital minute, outside and 

 behind proclinate, thrice as distant from posterior reclinate as from proclinate ; proclinate two- 

 thirds as long as posterior reclinate. Vibrissae long, stout, succeeding orals short. 



Mesonotum moderately shining black, granulose. Scutellum velvety black, somewhat 

 pollinose at anterolateral corners. Thoracic pleura moderately shining black, slightly bluish. 

 Two long humerals, lower longer. Acrostichal hairs in six sparse and somewhat irregular rows. 

 Anterior dorsocentrals about three-fourths as long as posteriors ; distance between anterior and 

 posterior dorsocentrals four-sevenths distance between anterior pair. Anterior scutellars diver- 

 gent, four-ninths as long as posteriors, which are nearly parallel and subequally distant from 

 each other and from anteriors. Sterno-index about 0-3. Legs yellow, fore tarsi and basal half 

 of fore femur black ; tips of mid and hind femora somewhat dark. Fore femur with a row of 

 spinules anteroventrally on distal half and a row of long hairs ventrally on distal half. Front 

 metatarsi as long as next three segments together, mid and hind metatarsi subequal to the other 

 segments together. Preapicals on all legs ; apicals on mid leg. Wings with two large black 

 spots, one triangular, basal to posterior crossvein, and the other round, large, outside posterior 

 crossvein ; wing tip slightly pointed. i? 2 +3 weakly curved to costa at tip ; i? 4 + 5 and M nearly 

 parallel. C-index about i-8 ; 4V-index about 3-3 ; 4C-index about 2 -3 ; 5x-index about 2-1 ; 

 Ac-index about 3 -8. Ci-bristle one ; C3-fringe on basal five-sevenths. Halteres greyish brown, 

 basally white, outer margin black. Abdominal tergites elongate, glossy black, somewhat 

 purplish, slightly grey pollinose. 



Periphallic organs dark brownish black. Genital arch slightly broader below, ventrally 

 truncate obliquely, sparsely setigerous ; heel low, rounded. Anal plate fusiform, setigerous, 



