70 INSECUTOR INSCITIit MENSTRUUS 



lalia (fig. 1 ) : Side pieces with long coarse bristles ; outer lobe subquad- 

 rate, beeuing three rods, one leaf-like appendage, and one bristle. Clasp 

 filament as long as the side piece. Inner branch of harpe with a tuft of 

 spines, outer branch long, armed. Middle branch of harpagones divided 

 and dentate, first branch lanceolate with acute tip. 



The reason for considering this form a new species may be given as 

 follows: In the genitalia table of H. D. & K. it runs out to No. 12. 

 Of the mosquitoes there included most have banded legs, others banded 

 abdomen ; equivocator has an entirely black proboscis, with no ventral 

 hair tuft in the male and a more reddish thorax. In similis the proboscis 

 is very similar, but our form is not so robust and the male of similis has 

 almost invariably a banded abdomen. Microsquamosus has not been 

 found in crab-holes, it has no white margin at the eyes, which, however, 

 in my species is not always well marked ; it has white lateral spots in the 

 mcJe, which I was not able to make out in my males ; it is more bronzy 

 shining and lighter colored and more robust. From Theobald's Culex 

 scholasticus my form is separated by its smaller size and by a difference 

 in the claws of the male ; the hair tuft on the proboscis is not mentioned 

 by Theobald. The other differences in the descriptions might be due 

 mostly to modes of expression. At least microsquamosus, scholasticus, 

 and my species agree, among other points, in two very striking ones, the 

 scale difference on the wings of male and female and the reduction of the 

 markings on the abdomen of the male ; microsquamosus zmd my form, 

 moreover, have the male proboscis quite alike. Only by a comparison 

 of the types of Theobald and a study of the larvae may we be able to 

 settle definitely the question of the identity of the three species. 



Described from eight meiles cmd four females from crab-holes near San- 

 tiago de Cuba, collected by Dr. Espin and myself. Types in the collec- 

 tion of the Institut fiir Schiffs- und Tropenkrankheiten at Hamburg. 

 Cotypes In the U. S. National Museum. 



Culex chalcocorystes, new species. 



Female. — Proboscis 1.9 mm., 1.7 the standard, 1 to 1.5 the length 

 of the abdomen, rather stout but hardly swollen at tip ; vestiture of black 

 bronzy shining scales and very few fine hairs near base and apex, at the 

 former point about eight long bristles standing out ventrally at about 60° ; 

 labellae lighter, especially at tip, with light scales and pubescence. Palpi 



