THE COMMON MOSOUITOES OF MINNESOTA 



87 



Aedes auroides Felt. 



A dark brown, medium sized mosquito, l)eak and legs brown 

 and unbanded. The anterior margin and first longitudinal vein of 

 the wings almost black. A broad^ dark brown stripe passes down 

 the center of the thorax, l)ecoming lighter toward the posterior end; 

 the rest of the thorax w^th golden scales. Abdominal segments 

 have white basal stripes widening on the sides. 



This is another one of the very early appearing forms in the 

 northern part of the state, being found with Acdcs fiiscns and Acdcs 

 abfitcliii. 



We have taken adults at Clear River, Roseau County, June 15, 

 1915; at McGregor, Aitkin County, June 16, 1916, and at University 

 Farm, June 23, 1916. They probably begin to appear in May. At 



Fig. 21 — Muskegs furnish ideal conditions for the production of early spring mos<iuitos. 



these places they were very abundant. No observations have been 

 made upon the life history, but it is safe to suggest that it resembles 

 Acdcs fuse US. 



The larva is fairlv large. The antennae bear the tuft of hairs 

 at the basal third of their legnth. The sixteen scales on the eighth 

 abdominal segment are arranged in a triangular patch ; each scale 

 is spatulate, with a stunt apical spine, the edges with stout setae. 

 The breathing tube is stout, three times as long as wide, rows of 

 spines twenty to twenty-four in number, each spine with one large 

 and two to three smaller teeth. 



