Dec, I9I3] MeLANDER: SYNOPSIS OF DiPTERA. 289 



Two specimens. Stanford University, California, 24 April, 1910 (Wm. M. 

 Mann) ; Seattle, Washington. 



Structurally the species is the same as combinata and lurida. 



OPOMYZA Fallen. 



It is not at all certain that the following species described by 

 Walker is a true Opomysa. His full description is quoted. 



Testaceous, head whitish in front ; thorax rather stout ; abdomen with a spot 

 on each side near the base, a dorsal spot and the apical half black ; 

 legs whitish ; wings slightly grayish, with a blackish spot on the costa 

 near the base, and another on the costa at two thirds of the length ; 

 discal transverse vein straight, parted by twice its length from the 

 border, and by much more than twice its length from the prebrachial 

 transverse, which is near the base. 3 mm. (U. S.) . .signicosta Walker. 



TAUROMYIA Giglio-Tos. 



The genus Tauromyia has been doubtfully located among the Geo- 

 myzinae. Williston believes it can not belong here. Its size, eight 

 millimeters, is greater than that of any other member of the group, 

 but otherwise there is nothing radical in the description to exclude 

 this fly from this subfamily. The head is somewhat hemispherical, 

 the face large and vertical, the cheeks narrow and bare but furnished 

 with long bristles along the margin of the large mouth-opening. One 

 recurved fronto-orbital bristle. Only posterior dorsocentrals present. 

 Wings long, the anal angle wanting, the fifth vein thickened at base. 



Testaceous ; face with three small black spots ; front with two black spots above 

 antennas and ocellar triangle black ; mesonotum with four brown 

 vittse ; abdomen blackish apically, all the segments margined with 

 brown ; wings Jightly yellowish. 8 mm. (Max.) . .pachyneura Giglio-Tos. 



PSEUDIASTATA Coquillett. 



Yellow, the abdomen brown ; wings hyaline, marked with six brown bands, of 

 which five extend posteriorly from the costa and one covers the pos- 

 terior cross-vein. 3 mm. (Md.) (Proc. Wash. Ent. Soc, IX, 148, 

 1907.) nebulosa Coquillett. 



TRYPT0CH.S;TA Rondanl. 



Cinereous brown, the front half of the wings lightly infumated ; face, cheeks, 

 anterior edge of the front, humeri, legs including coxae and base and 

 tip of abdomen yellow ; mesonotum with four poorly defined darker 

 vittae alternating with more pollinose grayish stripes. 3 mm. (Wash.*) 

 (Wien. entom. Ztg., XXX, 44, 191 1.) Diicans Hendel. 



