Genus A nopheles . 127 
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Like the type, they inhabit the swampy bush and houses 
in common. Although it occurs along with the type it 
seems to keep more or less distinct from it, and occurs often 
apparently alone. A large series comes from Antigua, with a 
description of the larva, &c., from Mr. Forrest, which is appended 
below. 
The larva of this species was found in a marshy-like stream, 
the surface drainage of a small sheltered valley, filled with a 
dense growth of Para grass (Paniceum muticum, Forsk.). The 
colour of the full-grown larva is variable, pale greenish-brown, 
or dark grey, or light brown with white patches. Head dark 
brown, with lighter markings. In the earlier larval stages the 
colour is usually dark grey, with a constant white marking on the 
prothorax like a collar behind the head. Their movements are 
most rapid and active under water, when they leave the surface 
to feed on a light green, fibrous-like alga. Mr. Forrest also 
sends the following description of the larva and pupa to Mr. 
Austen, of the British Museum :— 
“ Larva .—Head fairly rectangular, much narrower than the 
thorax, no constriction. Eyes on top, sloping from margin 
obliquely backwards, plumose bristle at antero-lateral margin 
on upper side. Antennae : Basal joint spiny, extremity consists 
of a bifurcated spine, stout, one-fourth length of basal joint. 
Maxillary palpi broad, flattened, one-half length of basal joint 
of antennae; short spine at outer apical angle; mouth whorls 
prominent; clypeus very wide, four bristles near frontal margin 
as long as the whorls. 
“ Thorax : The plumose bristles incline slightly forward. 
Those on the prothorax are situated on frontal margin, and 
are slightly shorter than those on the meso- and metathorax, 
which latter are of equal length. Besides the laterals there 
are several rows on the clorso-lateral region. Large pigment 
granules are dotted over the tergal region of the thorax and 
abdomen. 
“ Abdomen : First three segments have plumose lateral 
bristles at right angles to the body, as long as those of the 
thorax, remaining segments have short simple bristles, not seen 
with the naked eye; eighth segment has two spiracles on dorsum 
at the end of the two main tracheal trunks. 
“ Pupa .—Respiratory tubes : The hind margin is evidently 
brought to the surface; it is fringed with fine hairs. Abdominal 
segments broad, flattened, segments seven and eight same length. 
