170 INSECUTOR INSClTlv^ MENSTRUUS 



the tibia whitish on one side, the last four tarsal segments 

 silvery white on one side, the white on second segment very 

 narrow, on the last segment more yellowish and darker. Front 

 legs with a faint coppery shine on three last segments. Claw 

 formula : 0.0-0.0-0.0. Length : Body, 4.5 mm. ; wing, 4 mm. 



Albina, April, 1917 ; Dam, January, 1919. We captured 

 adults in the woods at these two places in daytime. 



This species differs from the other species of Prosopolepis 

 by having scales on the postnotum. 



Cotype, No. 22702, U. S. National Museum. 



Culex (CarroUia) iridescens Lutz. 

 Culex (Carrollia) secunda, new species. 



We have a number of males and females, which we cannot 

 separate on colorational characters from Culex {Carrollia) 

 iridescens Lutz from the Canal Zone. The larvae and the 

 male genitalia differ, however. The species was originally 

 described from Brazil, to which our region is nearer than the 

 Canal Zone. We presume our species to be the same as Lutz's 

 species and we propose a new name, Culex {Carrollia) 

 secunda, for the species from Panama. 



The larval differences are as follows : 



Air-tube with eleven hair-tufts, pecten with eleven teeth, 



iridescens Lutz 

 A.ir-tube with six to eight hair-tufts, pecten with three to six teeth, 



secunda, n. sp. 

 The differences in the genitalia are : 



Outer arm of side-piece a rod with four flattened, apical spines, 



iridescens Lutz 

 This arm reduced to a spine secunda, n. sp. 



Culex (Carrollia) infoliata, new species. 



The coloration of this new species is similar to that of the 

 two species just mentioned, but differs in details. The geni- 

 talia have the tip of the clasp-filament subspherical as in 

 Cidex {Carrollia) urichii Coq. The larvje are different from 

 any other Carrollia larva known at present, by having the comb 

 of the eighth segment in a triangular patch. 



Cotype, No. 22703, U. S. National Museum. 



