57 
femora pallid, grey scaled : hind legs with a faint knee spot ; 
the whole legs have a bronzy appearance in certain lights. Wings 
with the veins covered with purplish-black scales, except the 
base of the fifth longitudinal vein, which is covered with silvery- 
white scales, forming a characteristic silvery line at the base 
of the wing ; wings iridescent ; first sub-marginal cell very 
small, both shorter and narrower than the second posterior cell, 
its stem more than twice the length of the cell ; second posterior 
cell broad, its base nearer the base of the wing than that of the 
first sub-marginal cell ; posterior cross-vein nearly twice its own 
length distant from the mid cross-vein, both very pale ; veins 
with a row of small dark scales ; the apical portions of the second 
to fourth long veins with lateral spindle-shaped ones. Halteres 
with a pale stem and fuscous knob. 
Length, 2 mm. 
This is a beautiful little mosquito, found resting just above 
the water line in casks and water-butts, especially when nearly 
empty. I found them at Deception Bay, at Burpengary and 
Enoggera. It does not bite man, but evidently bites birds, 
for I have taken them gorged with avian blood. It is rather 
rare, but present throughout the year. It oviposits in a small 
black raft ; the upper ends of the eggs are studded with papillae ; 
to the naked eye, the raft looks like that of Culex cylindricus, 
and also like a small piece of that of Culex tigripes. with which 
mosquitoes this insect is associated ; the eggs can be easily 
distinguished upon examination under a low power of the micro- 
scope. The larva? to the naked eye, resemble Anopheles and 
feed on the surface on Alga? and Diatoms ; examined micro- 
scopically, they are seen to have a respiratory siphon and other 
characteristics ; they thrive badly for some unknown reason, 
only a few reaching the stage of pupation ; only a few have been 
found in conjunction with other larva? in casks ; they do best 
in water an inch or so deep and with a mud bottom. 
ANISOCHELEOMYIA.— Theobald (1905). 
Head clothed with flat scales rather loosely applied to the 
surface, and which form a more or less projecting mass between 
the eyes in front. Antenna? densely pilose in the male. Pro- 
boscis swollen apically. Palpi very short in both sexes. 
Thorax with narrow-curved scales in the middle, and with broad 
spindle-shaped ones around the front and sides ; scutellum with 
small flat scales rather loosely applied, very distinctly trilobed. 
Wings ornamented. Ungues of male not very unequal in length, 
but differing in breadth, one on each leg broad and leaf-like. 
Fork-cells short as in Uranota?nia. Closely related to 
Uranota?nia, but differing in the non-plumose male antenna? 
and peculiar ungues, also in the absence of flat thoracic scales 
