126 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 5] 



Hyalomyodes californica, sp. nov. 



Two specimens, male and female, Santa Clara county, California 

 (C. F. Baker). 



Almost like triangulifcra, but distinguished by humeri being' more 

 golden, extending back in a lateral stripe. 



Type.— Cat. No. 11,652, U. S. N. M. (female). 



Tribe Clistomorphini 

 Genus Clistomorpha Townsend 



A synonym of Clistomorpha is Clytiomyia Coquillett (non Ron- 

 dani). This genus is very distinct from Clytiomyia Rondani 

 (Clytia Robineau-Desvoidy). C. hyalomoides Townsend is distinct 

 from C. did y ma H. Loew (described as Xysta). The writer recog- 

 nized the fact of the two being congeneric nearly fifteen years ago, 

 from drawings of the type furnished by Mr. Samuel Henshaw, and 

 has since examined the type of didyma in the Cambridge Museum. 



Clistomorpha didyma H. Loew. — The apical cell is very short- 

 petiolate, and the hind crossvein is curved and in middle between the 

 small crossvein and bend of fourth vein. 



Illinois. 



Clistomorpha hyalomoides Townsend. — The apical cell is prac- 

 tically closed in the margin. The hind crossvein is in middle and 

 straight. 



Xew York. 



Clistomorpha atrata Coquillett. — The apical cell is closed in mar- 

 gin, or almost narrowly open. The hind crossvein is sinuate and 

 nearer to bend of fourth vein than to small crossvein. 



Idaho, Washington State. 



Genus Himantostoma H. Loew 



Himantostoma sugens H. Loew. — This genus belongs in this 

 tribe, as shown by an examination of the type in Cambridge. 



Subfamily Phasiin.t: 



Tribe Alophorini 



The following table will serve to separate the genera of this tribe : 



1. Front above antennae thickly beset on both sides with small bristles 2 



Front above antennae naked, only one row of frontal bristles on each 

 side 3 



