Knab — A New Mosquito from the Eastern United States. 163 



of Culex pipiens. The female is very voracious and the sting is nearly as 

 severe as that of Psorophora sayi. From the above data it is apparent 

 that this species commences breeding much earlier in the season than the 

 other species of Culex. 



The adults of Culex brehmei closely resemble Culex restuans Theob. 

 {=Culex territans Walk. )* and I do not venture to point out any char- 

 acter as diagnostic. The mesonotal scales are a trifle larger in brehmei, 

 but the diflference is not sufficient to be tangible. Well marked specimens 

 of brehmei show a more ornate mesonotum, the lighter colored markings 

 being more extensive and more contrasting on the darker ground. But 

 the ornamentation is variable in both species, with a tendency to disap- 

 pear, as indeed is the case in many other species. The venation and 

 scaHng of the wings is closely similar in the two species. The new species 

 rests essentially upon differences in the male genitalia and larva. The 

 latter suggests Culex pipiens, but differs in many details. 



• Walker's type of Culex territans agrees with restuans Theobald and not with the 

 species generally so designated ; according to the laws of priority the name territans 

 supercedes restuans. The species generally known as Culex territans should now be 

 called Culex saxatilis Grossbeck. (See Howard, Dyar & Knab, Mosq. of North & Centr. 

 Amer. & W. Ind., iii, 300, 1913.) 



