Genus Toxorhynchites. 119 
MrGaruinus Porroricensis. Von Roder. 
(Mono. Culicid. I., p. 232, 1901.) 
Two ?’s, and larvae and pupae of this species, have been 
received from Dr. N. 8. Durrant, the imagines bred by him from 
the larvae taken in Grenada, West Indies. 
One ? is in perfect condition and differs slightly from the 
specimen described in Vol. I.; the other specimen is spoilt by 
some fluid it has been in. | 
The perfect specimens show none of the azure-blue scales 
referred to in the specimen previously described, the thoracic 
scales all being bright bronzy-green, especially marked at the 
sides of the mesothorax, and the pleural spots are creamy, not 
silvery white. There are no traces of caudal tufts. - 

Genus 12. TOXORHYNCHITES. Theobald. 
(Mono. Culicid. I., p. 244, 1901.) 
This genus has proved a staple one and has been augmented 
' by the incorporation of several species previously placed in the 
genus Megarhinus. 
The Larva and Pupa of Toxorhynchites. 
There seems to be but slight differences between the larvae 
of the two allied genera of Megurhininae. There do not seem to 
be any anal fins in the larvae, but the terminal segment ends in 
four or more swollen, knob-like processes (fig. 68, f). On the thorax 
are thick serrated spines (c), and the abdomen is provided with 
rather dense lateral tufts of bristles on the first five segments. 
‘The siphon is rather short, and terminates in a four-rayed process 
(c and e?) ; on its ventral surface are two tufts of bristles. The 
head (a) is much smaller than the thorax and is provided with 
large serrated mandibles (b). 
The pupa (fig. 67, b) has curved respiratory siphons and two 
prominent oval anal fins; on the dorsum of the first segment a 
marked upright tuft of hairs. 
