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

RIBgIRO, H. & RAMOS, H. Cunha -- <strong>Research</strong> on the mosquitoes of Angola X
dant fallen leaves), a pool in sandy river bed, a crabhole and a fallen
banana leaf.
The breeding water was usually turbid, sometimes even foul water
with decaying leaves, or cut bamboos. The pH, measured
in three instances, ranged from 5.4 to 8.0.
Larval U. mashonaensis was the most frequently associated species
(in 4 breeding places), followed by C. tigripes (3) and E. chrisogaster (2).
Nine other species of Culex (annulioris, decens, inconspicuosus, ingrami,
kingianus, p. pipiens, simpsoni, univittatus and wigglesworthi), three of
Aedes (aegypti, nigricephalus and yangambiensis) and Anopheles (coustani,
demelloni and rufipes), and also U. [usca were recorded only once.
Ae. nigricephalus was the associated species in the crabhole breeding
place. Figs. 1, 3 and 8 ilustrate some cinerellus larval biotopes.
C. cinerellus is known to be a zoophilic species, which seems to
be also the case for the Angolan populations of this mosquito.
7.4.2--Culex (Culiciomyia) cinereus Theobald, 1901
The only known previous Angolan record of C. cinereus is that
by Grindata (lO) (11), from Huambo (= Nova Lisboa).
MATERIAL EXAMINED. MALANJE, 9 larvae, 12.IV. 1971; SAURIMO,
4 larvae, 10.IV. 1971; UIGE, 3 larvae, 15.IV.1971.
TAXONOMIC NOTES. Angolan larvae of C. cinereus agree quite well
with the description given by Hopkins (24), being easily identifiable.
The siphonal index in our mounted material is only 1.5-2.
DISTRIBUTION AND BIOECOLOGICAL IOTES. The known distribu-
tion. of C. cinereus in Angola (Map 7) seems to indicate that it is
mainly an West African mosquito.
All our larvae were breeding in artificial containers in the peri-
domestic habitat: gourds (4), barrels (2), discarded tins (2) and a drum.
The only species we found in association with larval cinereus were
A e. aegypti and C. p. quinquefasciatus.
C. cinereus is known to be mainly a zoophilic mosquito (35) (37),
though it was reported as biting man in Uganda, by Corbet et al. (43)
Estud., Ens. e Doc.- 134 63