REPORT ON MOSQUITOES. 283 



and mid tarsal joints (figs. 87, 3 and 4) are unequal in size, the 

 larger with a median and small basal tooth, the smaller with a 

 small tooth near the base; the posterior claws (fig. 87, 5) are 

 equal, the apical two-thirds at right angles to- the base and each 

 with a large basal tooth. In tl)e female the claws are alike on 

 all feet (fig. 87, 2), equal, hook-shaped and each with a large 

 curved tooth near the base. 



The abdomen is covered with brown scales, black at the apices 

 of the segments; beneath white, the white extending up the 

 sides and showing slightly on the dorsum at the basal angles of 

 the apical two or three segments. 



Habits of the Adult. 



Very little is known of this small species, which has never 

 been taken by any of the collectors in the adult stage. In 1904 it 

 was taken only once, in any stage, despite careful search in the 

 localities where it was found in 1903. It is scarcely probable 

 that it bites, and it certainly cannot be classed as a pest in any 

 sense. It was originally taken by Dr. Dupree, of Baton Rouge, 

 La., and its occurrence in New Jersey was unexpected. Nothing 

 is known of the method of hibernation, nor of the manner in 

 which the eggs are laid. 



Description of the Larva. 



The larva (fig, 88, i) is a small, inconspicuous wriggler, 

 averaging 5.5 mm., = .22 of an inch in length, exclusive of the 

 anal siphon, though specimens are rarely 6.5 mm. It is dirty 

 white or yellowish in color, almost transparent and very difiicult 

 to see in the water; when placed in alcohol it becomes darker. 

 The head is yellow with a faint cloud on the vertex, almost twice 

 as broad as long and evenly rounded in front. Six hairs arise 

 from the anterior part of the head, four in the central part and 

 one from the base of each antenna. The antenna (fig. 88, 5) is 

 short, half as long as the head, and pale yellow in color. It is 

 almost uniform in thickness two-thirds from the base, then tapers 

 slightly toward the tip, where there are four short spines and a 

 small joint; the surface sparsely set with small, stout spines. 

 The eyes are rather small and occupy the part where the head 

 is widest. The rotary mouth brushes (fig. 88, 3) are very dense, 

 the hairs pectinated at the tip, most obviously so in the center 

 of the structures. Tlie mandible (fig. 88, 4) is normal, with a 



