192 University of California Publications. [Entomology 



European Species — Continued. 



pusilla Meig. 30M126, 60L32, 648259, 9GB211, Ephijdra 



infecta 33H175, nasuia 44S192, 46Z1825. North and 



Middle Europe, Silesia. 

 quadripunctata Meig. 30M117, 3SZT16, 4GZ1822, (50L33, 



64S258, 96B214, furcata 44S190. North and Middle 



Europe, Silesia. 

 undulata Beck. yOB213, 96S291. Russia, Berlin. 



Other Countries. 



bucculenta Lw. G2L14, 96B268. Caffraria. 

 humilis Will. 97W7, 97S266. Brazil. 



EPHYDRA Fallen. Type riparia. 



North American Species. 



1. Thorax lemon yellow lutea Wiedmann. 



Thorax ashy, with slight greenish reflection 2 



Thorax black or brownish black 3 



Thorax dark green 8 



Thorax metallic or coppery green 11 



2. Thorax with three broad vitta?, front brassy green, .cinerea n. sp. 

 Thorax without vittse, front dark bluish Mans Say. 



3. Wings except along veins blackish or smoky 4 



Wings gray or hyaline •") 



4. Front except the lateral margins, shining, slightly greenish. .. . 



calif ornica Packard. 



Front opaque velvety black pygmaea Williston. 



Front grayish white, dusted with brownish. Jhomae Wiedmann. 



o . Thorax dull i > 



Thorax shining 7 



6 . Abdomen shining hrevis Walker. 



Abdomen not shining tarsata Willistun. 



7 . Legs piceous lata Walker. 



Legs pale yellow ' nana Walker. 



8. Third antennal joint with a lateral hair 9 



Third antennal joint without a lateral hair 10 



9. Wings clouded with blackish gray atrovirens Low. 



Wings grayish hyaline, not clouded pilicunri.s Coquillett. 



10. Thorax opaque obscuripes Low. 



Thorax shining uustiino ('oquillett. 



11. First joint of front tarsi incrassated crassimana Low. 



First joint of front tai'si not incrassated 12 



12. Third antennal joint minute, sunken in the head 



Iidlophiht Packard. 



Third antennal joint not minute, not sunken in the head.... 13 



13. AntenniC dark brown, arista with short pectinations 



millhrae n. sp. 



Antennte black, arista with long pectinations. . ..subopoco Low. 



Note. — E. yracilis described in larval stages only. 



Note. — oscitans (Walker) cei-tainly differs from all others of this 

 genus in the markings of the wings, and if in this genus at all probably 

 belongs near pygnxtea or thomae, from which it differs in that the front is 

 dark brown. 



