Genus Anopheles. 23 
strong resemblance to A. bifurcatus and A. Algeriensis, most like 
the former on account of the similar size, but it can at once be 
told by the striking dissimilarity in the size of the fork-cells, the 
second posterior not being much more than half the length of 
the first sub-marginal_—F. V. T.] 
ANOPHELES IMMACULATUS. n. sp. 
Thorax ashy-brown, with darker marks and pale. hairs; 
abdomen brown, with golden hairs, most dense apically ; palpi 
shorter than usual, brown, becoming ochraceous to almost white 
apically ; legs brown, with ochraceous reflections, the tarsi dark 
in some lights, with pale apical bands; wings with ochraceous 
veins, unspotted. 
2. Head dark brown, with grey upright forked scales in 
front, ochraceous and darker ones behind, while narrow-curved 
scales in front form a more or less projecting mass, beneath 
which arises a tuft of long white hair-like scales; antennae 
brown, the basal joint bright testaceous, the next few joints with 
pale scales ; palpi short for an Anopheles, rather thick, covered 
with dense brown, grey and ochraceous scales, the brown scales 
basal, the others forming most of the apical covering, the scales at 
the apices of the joints are slightly paler than the rest ; proboscis 
about the same length as the palpi, ochraceous brown with a 
paler tip. 
Thorax ashy-brown with slaty reflections, with darker longi- 
tudinal lines, one being median, the surface with pale golden, 
hair-like curved scales, a tuft of pale scales projecting over the 
head in front ; scutellum ochraceous or slaty-grey according to 
the light, with narrow-curved, hair-like, pale golden scales, and 
brown border-bristles ; metanotum deep brown. 
Abdomen deep brown to black with golden hairs, which are 
very dense on the apical segments. 
Legs ochraceous, with brown scales, scantily set on the femora, 
so that they appear dull ochraceous, the tarsi are darker, 
especially on the hind legs, which have the apices of the joints 
banded with ochraceous; to some extent this banding may be 
seen in the fore and mid legs; ungues equal, simple, deep brown, 
large for an Anopheles. Wings unspotted, with yellowish veins 
and pallid ochraceous scales ; fork-cells rather short, the first 
sub-marginal longer and narrower than the second posterior cell, 
their bases nearly level, the stems longer than the cells ; super- 
