96 
A Monograph of Culicidae. 
Closely related to Psorophora , yet clearly distinct, is the 
new genus Mucidus, in which the posterior cross-vein is nearer 
the apex of the wing than the mid cross-vein and the wings 
covered with curious pyriform parti-coloured scales, as well as 
having head scales of a form found in no other member of the 
family. 
The genus Toxorliyncliites contains but a single species, but 
is very marked, the wings being much as in Megarhinus , which 
it generally resembles, but the palpi in the female are three- 
iointed. 
Amongst Anopheles there is no doubt that the species 
described as A. Grabhamii should constitute a new genus, but I 
had only one bad specimen to examine, so leave it for a future 
date to describe.* The genera Stegomyia and Panoplites are 
clearly defined from Culcx, so is Wyeomyia from Aedes and 
Aedeomyia, Mucidus from Psorophora , and Toxorhynchites from 
Megarhinus , but whether the others I have placed as genera, Eret- 
mapcdites and Armigeres, should rank as genera or- sub-genera 
is a matter of opinion. Eretmapodites might possibly be merged 
in Sabethes, but in general appearance they approach Culex. f 
Janthinosoma form a decidedly marked group, the hind legs 
having shaggy scales, and the hind tarsi are always white. 
Aimigeres resemble Stegomyia in scale structure, but are much 
larger insects, and present quite a different superficial appear¬ 
ance, and their larvae differ. The genus Trichoprosopon, n. g., 
forms a most interesting group, in which not only chaetae, but 
squamae are present on the metathorax, and the clypeus, <tc., 
densely hairy. 
* Since I have received fresh material I have placed this pretty gnat in 
a distinct genus Cycloleppteron (vide Appendix, Yol. II.). 
f Eretmapodites is clearly distinct, Sabethes being related to Aedes (vide 
Appendix, Yol. II.). 
