194 



NEW YORK STATE MUSEUM 



Fig. 57 Fourth and fifth 

 antennal segments of Co r - 

 dylomyia brevi- 



c o r n i s , enlarged. (Orig- 

 inal) 



side of the segments. The palpi are quadriarticulate and the an- 

 terior border of the wing is continued to a point near the fourth 

 vein. The terminal clasp segment of the male is short, swollen and 



obtuse apically. Type B. bergrothi 

 Kieff. Representatives of this genus are 

 not known to occur in America. 



Cordylomyia Felt 

 191 1 Felt, E. P. N. Y. Ent. Soc. Jour., 

 19:35 



This genus is represented by a series 

 of species with short antennae and is 

 most easily recognized, especially in the 

 female, by the subapical, frequently thick 

 whorls of short, stout, occasionally re- 

 curved spines. These organs are less 

 apparent in the male, though rudiments 

 of a whorl may be seen in at least one 



species placed in this group. The type of this genus is C. 



coprophila Felt. 



Key to species 



a 11 subsessile antennal segments; females 



b Subcosta uniting with the margin at the distal third 

 c Length 2 mm ; abdomen fuscous yellowish, unicolorus ; fifth an- 

 tennal segment subglobose, short haired, .b r y a n t i Felt, C. 796 

 cc Length 1 mm; abdomen fuscous yellowish, reddish basally; fifth 



antennal segment pyriform, rather slender, long haired 



sylvestris Felt, C. ai620 

 ccc Length 1.5 mm; abdomen reddish brown; antennal segments stout 



luna Felt, C. 547 

 bb Subcosta uniting with the margin at the basal half 



c Fifth antennal segment cylindric, with a length three-fourths its 

 diameter 

 d Length 2 mm; eleventh antennal segment about the same length 



as the tenth ; fourth palpal segment slender 



brevicornis Felt, C. 725, 756, 882, 889, 1229 



dd Length 2.5 mm ; eleventh antennal segment nearly twice the 



length of the tenth, strongly constricted near the middle; 



fourth palpal segment swollen apically 



t u m i d a n. sp., C. 1216 



cc Length 1 mm ; fifth antennal segment cylindric. with a length 



one-fourth greater than its diameter, .coprophila Felt, C. 890 



ccc Length 2 mm; fifth antennal segment cylindric, with a length 



twice its diameter... coloradensis n. sp., C. 1386, 1387 



aa 12 antennal segments, subsessile ; females 



