CLASSIFICATION OF THE MOSQUITOES 237 



VI.— Genus Culex. 



(a) RECOGNIZKl) SPECIES. 



Malefi. 



1. Front tarsal t^laws bearing a distinct tooth near the middle of 



the under side of each 3 



Front tarsal claws bearing two teeth on the under side of one 

 claw, and one on under side of the other, proboscis destitute 



of a whitish band near the middle 2 



3. Feet distinctly white at bases of the joints . sollir.itans Walk. 

 Feet not white at bases of the joints coii.sobrinufi Desv. 



3. Proboscis destitute of a whitish ring near the middle 4 



Proboscis with such a ring, ends of tarsal joints white 



tarsalis Coq. 



4. Bases of tarsal joints not white 5 



Bases of tarsal joints white stimiilans Walk. 



5. Palpi not dilated 6 



Palpi strongly dilated toward the a|)ex impiger Walk. 



6. Petiole of first suljinarginal cell at most one-fourth the length 



of that cell pipieiis Linne'. 



Petiole at least almost half as long as the cell . pungens Wied. 



Females. 



1. Front tarsal claws bearing a distinct tooth near middle of 



under side of each 3 



Front tarsal claws destitute of teeth 7 



3. Proboscis destitute of a white ring near the middle 4 



Proboscis marked with such a ring, bases of tarsal joints 



white 3 



3. With a stripe of yellowish scales in middle of the abdo- 



men sollirittuis Walk. 



Without such a stripe twitiorhj/iK-hus Wied. 



4. Bases of tarsal joints distinctly white stlnialans Walk. 



Bases of tarsal joints never white U 



