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

RIBEIRO, H. & RAMOS, H. Cunha -- <strong>Research</strong> otz the mosquitoes of Angola X
No bioecological differences could be put into evidence between var.
vexillatus and the type form.
Our adults of var. vexillatus were all reared in the field laboratory.
Three vexillatus breeding places were recorded by the writers: two
enlarged crabholes in the mangrove swamp of the Chiloango River mouth
and a slow flowing cement channel draining muddy water to the sea.
Aedes argenteopunctatus kingi, C. annulioris and C. tigripes were recorded
as vexillatus associates in its larval biotopes.
According to the findings of Hamon (37) in Bobo Dioulasso area,
concerning var. vexillatus, this would be mainly a zoophilic mosquito.
7.5.15- CJdex (Culex) ornatothoracis Theobald, 1909
The only known Angolan record of C. ornatothoracis is that by
Worth & Paterson (12), from Cabinda.
MATERIAL EXAMINED. LIFUNE, 1 ex pupa, 21.IV. 1970.
TAXONOMIC NOTES. Scutum with many yellowish scales round margins
and on posterior half, as described. Hind femur, however, practically
without pale spot at tip. Phallosome much like those figured by
Edwards (8) (Fig. 118- d, e) though the small external tooth present on
the outer division on type phallosome from Accra (but not figured in the
Toro specimen) is much more developed in our male. On the coxire lobe,
/ is a narrow pointed blade, the other appendages being as in type.
DISTRIBUTION AND BIOEOOLOGICAL NOTES. Map 16 shows the only
two Angolan localities known for ornatothoracis.
The larval biotope recorded by the writers for this species was a
large rain-water ground pool with floating vegetation and shaded by
palms. The breeding water was turbid, with a high organic matter content,
and greenish owing to microscopic algae.
C. ornatothoracis is thought to be a rare zoophilic mosquito in
Angola, as it is in Kenya (49). Haddow et al. (35), however, recorded this
mosquito as biting man by day, in the open.
Extud., Ens. e Doc.- 134 87