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

RIBIglRO, H. & RAMOS, H. Cunha -- <strong>Research</strong> on the mosquitoes of Angola X
37- Larger, wing-length 4.5-5.5 mm ............................ toroensis
--Smaller, wing-length 3.5-4.5 mm ......................... chorleyi
in part
38 1 Mesepimeron bare of scales or almost so (a few scales
may be present among the upper mesepimeral hairs,
but none in middle of mesepimeron); thorax very pale,
shoulders extensively so; 2-4 lower mesepimeral bristles
...................................................................
Mesepimeron with a distinct scale-patch in middle;
thorax darker; with 1 or 2 lower mesepimeral brispruina
tles ...................................................................
39
391 Antenna of female normal, each flagelar segment
with only 4-6 verticillate hairs .............................
Antenna of female subplumose, first few flagelar
segments each with 10-20 verticillate hairs ...........
40--Venter pale, unbanded; halteres all yellowish; pro-
boscis usually paler beneath ................................
--Sternites with at least narrow dark apical bands; knob
of halteres dark; proboscis all dark .......................
41-- With broad lateral stripes of cream-coloured scales on
abdominal tergites 6 and 7; hind tibia without any
obvious pale spot at tip, though a few pale scales may
be present; scales on propleura most of the colour of
he integument, not white .................................... antennatus
Tergites 6 and 7 without such lateral stripes; pale
spot at tip of hind tibia usually evident; propleural
scales whitish ................................................ pipiens pipiens
in part
421 Hind tibia with a pale spot at tip (this spot may be
reduced and, in males, sometimes practically absent)
--Hind tibia entirely dark .......................................
43- Venter with narrow apical bands, mainly pale; scales
on anterior of scuturn almost uniformly brown,
Estud., Ens. e Doc. 134 41
40
49
41
42
43
47