Genus Culicelsa. 379 



the lateral tuft is more basa], and I could only detect one hair 

 in some, two in a few. The mentum, according to J. B. Smith, 

 has from 10-12 teeth on each side, and varies slightly in general 

 form. Those examined varied in form more than Smith's, but 

 have the same number of lateral teeth. The scales of the eighth 

 segment are oval, with about 1 7 spines, and vary in number from 

 16 to 22. 



The siphon is short and broad, with two rows of spines 1 6-20 

 in number, which vary in form, but are serrated on each side. 

 Anal gills very short. 



Life-history and habits. — This mosquito occurs in houses, 

 hospitals, &c, and also in the open. It bites rather severely. 



Structural parts of the larva are shown in figure. The figures 

 of the larvae given by Prof. John B. Smith in Bulletin 171, New 

 Jersey Agricultural Station, Feb. 8th, 1904, Plate VI., do not 

 agree with those sent by Dr. Grabham. What species Professor 

 Smith's belong to I do not know, but Dr. Grabham's belong 

 undoubtedly to C. taeniorhynchus, Wiedemann. 



Economic importance. — This species is a vicious biter in 

 Jamaica, and is of particular importance on account of its 

 frequency in seaside towns. 



Culicelsa togoi. n. sp. 



Head deep brown, with paler scales and a small prominent 

 white spot on each side ; proboscis deep brown, unadorned. 

 Thorax deep brown with golden scales in more or less lines, the 

 brown scales most prominent on each side in front and over the 

 roots of the wings, but present between the pale scaled lines. 

 Abdomen black with basal snow-white bands, which are repre- 

 sented by lateral spots on the last two segments. Legs black 

 with basal white bands. 



9 . Head deep brown, with pale creamy narrow-curved 

 scales, a small prominent patch of flat white scales on each side, 

 then flat dark scales ; numerous narrow, black, upright forked 

 scales; a pale border around the eyes; palpi rather long deep 

 brown with white scales apically ; proboscis black ; antennae 

 deep brown, basal segment pale with some small flat white scales, 

 the second segment rather enlarged with small flat black and 

 white scales ; verticillate hairs black, internodal pilosity pale. 



Thorax deep brown with rather broad curved golden scales, 

 somewhat paler over the roots of the wings, and with deep brown 



