Research on the mosquitoes of Angola - Systematic Catalog of ...

RT}ImO, H. & R^M0s, H. Cunha -- <strong>Research</strong> o the mosquitoes of Angola X
6--Subventral tufts of siphon represented by long, single
setae; siphon not spiculate .......................................... dutttoni
() watti
--These tufts strongly branched; siphon obviously spi-
culate, at least in neighbourhood of pecten ........... 7
__ Tufts of siphon (excepting the more distal pair) 6-10
branched, with a mean number of branches per tuft
of about 8.5; head seta d with 4 or 5 branches; spi-
culation of siphon confined to the ventral side, in
neighbourhood of pecten ................................. pruina pruina
These tufts 9-16 branched, with a mean number of
branches per tuft of about 12.5; head seta d with
about 7 (6-9) branches; spiculation extending to the
lateral and dorsal aspects of siphon, usually covering
most of its surface ....................................... pruina eschirasi
8--Pecten extending to 3/, or beyond ........................
--Pecten not extending beyond , seldom beyond
--Comb composed of spines; spine on dorsal valve of
siphon exceptionally long (longer than diameter
of siphon apex), conspicuously denticulate towards
base ...................................................... weschei ? gediensis
Comb composed of scales; spine on dorsal valve of
siphon small and simple, as usual ............... trifilatus trifilatus
10q Mentum an equilateral straight-edged triangle with
very numerous small teeth which are not visible
under low magnifications ...................................
Mentum not as above, obviously toothed ..............
ill Seta } (abd. seg. w) with about 5 (4-7) branches,
seta with 3-5 branches and seta with 4 or 5
branches each side, making a total of about 25 (22-28)
branches on both sides together ............... aurantapex jinjaensis
Seta } usually with 2-3 (rarely, 4 or 5) branches,
(x) According to Hopkins (24), apparently indistinguishable from duttoni.
44 Estud., Ens. ßDoc.- 134
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