•Jan., 1904.] On Diptera of the Family Ephydridae. 65 



Caenia R. D. 



1. Wings fumid 2. 

 Wings grayish hyaline 3. 



2. Legs red, abdomen uniformly colored spiiiosa Loew. 

 Legs black, abdomen with greenish gray cross- 

 bands fimiosa Stehn. 



3. Wings uniform grayish hyaline, knees of all the 



legs plainly red, abdomen green, segments 

 three to five with a middorsal row of bronze 



triangles, length, 6 millimeters z'irida n. sp. 



Wings grayish hyaline with marginal cell dark 

 gray, abdomen greenish with broad bases of 

 last three segments violet bronze, length 4 mil- 

 limeters bisi'tosa Coquillett. 



Caenia fumosa Sten. 



This is a European species, and so far as I can find has not 

 been reported from this conntry heretofore. The seven specimens 

 before me, taken at Castaha, Ohio, July 13, 1901, agree .so well 

 with the description of fumosa given by Schiner, and are so 

 readily traced to this species by Becker's key, that I do not 

 hesitate to identify them as such. 



Caenia virida n. sp. 



General color dark green, thinly yellowish and gray pruinose. Antennae 

 clear brown, arista rather long pectinate above on median third, hairy on 

 basal part, proboscis dark nearly black, face and cheeks rather densely yel- 

 lowish pruinose except on upper part where the green ground color is dis- 

 tinct, clothed with rather short black hairs, bristles of the oral border 

 distinct; front green shining, with two pairs of orbital bristles, dorsum of 

 thorax green, thinly yellowish pruinose and with five pairs of dorsocentral 

 bristles, pruinosit}- of the pleura dense obscuring the ground color, scutellum 

 green shining with two pairs of bristles, legs black except the knees which 

 are narrowly but plainly red, wings uniformh- graj'ish hj-aline, veins brown, 

 halteres yellow ; abdomen shining green thinly gray pruinose, a middorsal 

 row of bronze triangles on segments three to five and suggestions of bronze 

 on the anterior margins of the sides of the same segments, two to four nearly 

 equal in length, five much longer. Length 6 millimeters. 



Habitat: Brownsville, Texas. 



Several specimens collected by Charles Dury of Cincinnati in 

 April and May, 1903. 



