INSECUTOR INSCITI^ MENSTRUUS 11 



THE MOSQUITOES OF THE MOUNTAINS OF CALI- 

 FORNIA 



(Dipt era, Culicidcs) 



By HARRISON G. DYAR 



The territory explored covers the northern half of the Sierra 

 Nevada mountains of California. In a previous paper (Ins. 

 Insc. Mens., iv. 80-90, 1916), I described six new species of 

 Aides occurring there. I will here notice all the species found 

 in the mountains. 



Aedes tahoensis Dyar. 



In describing this species, I compared it with lazarensis Felt 

 & Young and stated that it might be a variety of that species. 

 The comparison should have been with pullatus Coquillett. 

 Pullatus has the same mesonotal ornamentation as tahoensis, 

 running somewhat darker than the specimens from the central 

 Sierras. However, tahoensis from the Gold Lake region in 

 Sierra and Plumas Counties is also dark, and there is prob- 

 ably no line of demarcation. 



The male genitalia of tahoensis have a spine on the basal 

 lobe; pullatus is described as without this spine; but a re- 

 examination of the mounts of pullatus shows the spine dis- 

 tinctly present. The genitalia, therefore, are the same, and 

 hot different, as I was led to suppose when I described the 

 species. 



The larva of tahoensis has the upper head hair in three, the 

 lower single ; pullatus has both head hairs multiple. ^ The dif- 

 ference may be bridged by specimens in the intermediate terri- 

 tory; but with present information it is necessary to hold the 

 species separate. Pullatus is described from the Kootenai re- 

 gion of British Columbia, in the Selkirk Range. I have tOr- 

 hoensis from the northern part of the Sierra Nevada mountains 

 of CaHfomia and the lower part of the Cascades in Oregon. 

 Careful exploration of the continuation of the Cascade Range 



^Pullatus has the upper head hair in fours, rarely in fives; lower head hair 

 in threes. 



