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NEW YORK STATE MUSEUM 



depressions in the bed of a small stream and in similar hollows 

 in small ponds, all of which were dry the greater part of the 

 Slimmer. We have also met with the larvae in some numbers in 

 temporary pools at Karner, they being found only in the early part 



Fig'. 15 Several small comb scales of P s o r o - 

 phora ciliata very much enlarged 



Fig-. 16 Middle tarsal 

 claw of Janthino- 

 soma musica 



of June. The larvae are predaceous and devour large numbers 

 of Culex, with which they are associated, and are consequently 

 beneficial. The duration of the pupa state has been reported as 

 from four to five days. The eggs of this species were obtained by 

 Dr H. F. Harris of Atlanta Ga., who states that they are black 

 and measure about .7 mm in length, and that when viewed with a 

 high power Jens they are found to be distinctly convex .on one side 

 and slightly concave 'on the other, having an oval form when seen 

 from either of the surfaces. 



Janthinosoma musica Say 

 Big wood mosquito 



PI. 2, 15, fig. 3, 2 respectively 



This species may be recognized by the densely scaled legs, and 

 by having the last two joints of the posterior tarsi white [fig. 10] . 

 The peculiar character of the clawis is shown at figure 16. These 

 differ considerably from Theobald's drawings made from South 



