Genus Uranotaenia. 301 
about one and a half times its own length distant from the mid 
cross-vein ; venation practically as in all Uranotaeniae. Halteres 
with pale stem and fuscous knob. 
Length.—3°5 mm. 
Habitat.—Para, Brazil (Dr. Durham). 
Observations.—Described from a single ?, not in perfect 
condition. The species is, however, very distinct ; the unbanded 
legs and abdomen, with the pale ochraceous venter, are marked 
features seen in no other species of this genus. 
URANOTAENIA Lowi. Theobald. 
(Mono. Culicid. II., p. 339, 1901.) 
Additional localities—St. Vincent (Dr. Low); Para (Dr. 
Durham) ; Trinidad (C. W. Hewlett). 
Notes and observations. —Dr. Low sends the following note on 
this species: ‘“‘The pool already mentioned (see C. fatigans) 
near the cemetery in St. Lucia and small water holes in a 
meadow behind Kingstown, St. Vincent, were the breeding- 
ground of this species. The eggs were not detected. 
“The larvae agree with description given by Lutz as being 
intermediate between Culex and Anopheles. They are small, 
blackish in colour, and lay at the surface obliquely, approaching 
the position of an Anopheles. A breathing tube could be, 
however, quite easily detected. They were kept, and the insects 
developed from them. 
‘The imagines only lived two days and seemed very delicate. 
I could not get them to bite. The ones in St. Vincent taken in 
October were similar. They also soon died, and I failed to get 
them to bite. The larvae are found in water where Culex and 
Anopheles larvae exist, and they seem to agree perfectly, the 
larger species not molesting them.” 
Dr. St. George Grey writes that he found the larvae of 
U. Lowi in a drain near Castries, and later he found them in 
a pool near the cemetery. The larva of Uranotaenia is shorter 
than that of C. fatigans or S. fasciata, while the head and thorax 
are much broader. The abdomen is black, and when at rest at 
the surface of the water lies nearly but not quite flat. Mr. 
Hewlett says it is rare in Trinidad, occurs in August, and bites 
severely. | 
