MOSQUITO BIOLOGY 143 



It is closely allied to A. canadensis, the tarsi being ringed with white 

 on both sides of the joints, except in the last two of the hind feet and 

 the last three of the fore and middle feet ; the last joints of the hind pair 

 are wholly white. The beak is unhanded, the wings unspotted, the thorax 

 golden yellow with a blackish central stripe and the segments of the 

 abdomen have narrow, irregular, white bands at their bases. 



DESCEIPTION OF THE ADULT 



Small, of slight build, the body measuring, exclusive of beak, 3.5.-4.5 

 mm. (.14-.18 inch). Head back of large black eyes covered with whitish 

 scales ; patch of black scales on each side which sometimes mix with 

 those of top. Proboscis black, long, slender, 2.5-3 mm (.10-.12 inch) 

 long. Palpi in female black, fourth joint small, oblong, with obtuse 

 apex, one or two long bristles ; one specimen examined showed minute 



Fig. xlvii. Adult of rock pool mosquito. Aides atropalpus Coq. (After John 

 B. Smith.) 1, female adult; 2, anterior claw of same; 3, anterior, 4, middle 

 and 5, posterior claws of male (all much enlarged). 



