C&NOMYIODES. Ill 



Thorax broad, robust ; abdomen similar, rather longer, pointed ; 

 both shortly pubescent or nearly bare ; scutellum with t\vo blunt 

 apical spines ; genitalia small. Leys as rioted previously. Winys 

 as noted above, in rest covering abdomen, posterior cross-vein 

 absent ; alulae well developed, alar squama small, thoracic squama 

 very narrow. 



c? unknown. 



Range. Assam. 



This genus differs from Ccenomyia, Latr., by the broad frons in 

 the 5 , by the anal "cell being closed distinctly before the wing-, 

 margin, and by the 4th posterior cell also being closed at some 

 distance from the margin, rounded apically, and sending no veinlet 

 to the margin. 



73. Ccenomyiod.es edwardsi, sp. nov. (PI. II, tigs. 3, 4.) 



$ . Head chrome-yellow, a little darker on frons, which bears 

 a transverse streak just above antennae, not quite reaching eye- 

 margins ; ocellar triangle black, also a stripe from it passing over 

 vertex and part of occiput ; mouth-opening pale yellowish ; head 

 bare, except for some hardly visible pale hairs on occiput, about 

 the eye-margins. Antennae with 1st and 2nd joints yellow, with 

 some very short black bristles, giving the joints a partly blackish 

 appearance ; 3rd joint divided by impressed lines into eight 

 annulations, brownish yellow, with a black streak on upper side. 

 Thorax mainly chrome-yellow, although the yellow and black 

 parts are about equal in extent ; a broad black median stripe 

 from anterior margin, where it is slightly dilated, to hind margin, 

 narrowing shortly after passing the suture ; a black stripe on 

 each side of the median one, leaving a narrow intermediate space, 

 extending forwards barely to the humeri, and narrowing gradually 

 behind the suture but reaching hind margin, on which all three 

 stripes are joined ; sides of thorax yellow, underside black, with 

 a broad black stripe running from just behind the fore coxae, 

 curving forwards, narrowing to a point a little below the humerus ; 

 a similar stripe joins the underside of the thorax with the wing- 

 base, spreading out hindwards to the hind coxae and upwards 

 narrowly to the scut ell um, which latter is yellow, the metanotum 

 being black; dorsum covered with microscopic yellow pubescence, 

 with a little on parts of the pleurae. Abdomen with first four 

 segments bright chrome-yellow, with a fairly wide black dorsal 

 stripe with irregular edges, dilated on hind borders of 1st and 

 2nd segments, occupying two-thirds of the width of 3rd and 4th 

 segments ; rest of segments reddish brown, the black dorsal stripe 

 carried over all but the last one, dilated on hind borders ; 8th 

 segment canary-yellow on apical half ; a small curved yellow 

 mark towards each side of 6th segment ; a email indistinct yellow 

 spot on 7th segment on each side of the middle; venter 

 reddish brown, a small yellow mark extending over 6th and 

 7th segments ; genitalia yellowish brown, with two rather short 



