rOUKTEBNTH ANNUAL EiEPORT OF STATE ENTOMOLOGIST 73 



It has been noticed that this species is not as bad a biter in 

 daylight as are curriei and sylvestris; toward nightfall, however, 

 they become exceedingly ferocious. 



Distribution. — This species has been collected in the following 

 localities : Harlem, Miles City, Laurel, Big Timber, Cascade, Hardin, 

 Huntley, Powderville, Bozeman, Three Forks, and the Judith Basin. 

 It appears to be especially abundant in eastern Montana. 



Aedes spencer ii Th. 



This species ranks fourth in importance among the species whicn 

 we have collected. 



Larval Records. — The earliest larval record is May 28 and the 

 last June 28. 



Larvae have been found in the following situations : "Water 

 on edge of alfalfa field," "temporary pool caused b}^ spring rains," 

 "irrigation water in clover field." 



Record of Adults. — The earliest seasonal record for adults is 

 May 6 and the latest July 11. 



Adults have been taken in the following situations : "Wild grass," 

 "blue-joint field," "wheat field." 



This species is a bad biter both day and night. 



Distribution. — Aedes spencerii has been taken in the following 

 localities : Cascade, Harlem, Turner, Hardin, Judith Basin, Three 

 Forks, Huntley, and Bozeman. 



Aedes pullatus Coq. 



While this species has not been found in man\' parts of the 

 State, it is extremely annoying in several of the higher mountain 

 valleys. 



Larval Records. — The only larvae of this species which we have 

 found were taken June 13 in small pools found in tracks made by 

 stock in marsh}^ ground. 



Record of Adults. — Taken in timber at high altitudes. 



Distribution. — Warm Springs, July 1 ; Gallatin Mountains, June 

 30; Bridger Mountains, June 18. Further collecting in the higher 

 parts of the State will probably show this species to be quite gen- 

 erally distributed. 



Other Aedes Species 



The following species of Aedes have been collected but not in 

 numbers large enough to warrant considering them at present of 



