214 



CALIFORNIA ACADEMY OF SCIENCES 



[Proc. 4th Ses. 



apical bristles. Pleura black, mostly shining. Halteres black- 

 ish near the base, the knob whitish. 



Abdomen dull black, nearly devoid of pile on the basal 

 half, the apical half with longer sparse brown pile. Legs 

 entirely brownish black, the tarsal claws large and equal. 

 Basal joint of hind tarsus a little less than twice as long 

 as second joint; joints of the tarsi with pile longer than their 

 diameters. Tip of hind tibia with several short bristles. 

 Wings whitish hyaline, the anterior veins heavy and brown- 

 ish yellow, the other veins very thin; petiole of the media 

 about the length of the cross vein (see fig. 5) ; cubitus forks 

 distinctly proximad of the cross vein. 



Holotype, female, No. 828, Mus. Calif. Acad. Sci.; F. R. 

 Cole collector, March 28, 1919. 



Type locality, Forest Grove, Oregon. 



The species would run to couplet 6 in Malloch's table of 

 species, but differs from antennalis in size, color of halteres, 

 and in lacking spines on the last tarsal joint. It is larger 

 than arctica with large tarsal claws. The species is named for 

 Mr. J. R. Malloch, the author of the genus, whose fine paper 

 on the Chironomidae of Illinois has been very useful in work- 

 ing up this family. 



Family CULICID/E 



Fig. 6. Culex pipiens Linnasus. 



