Literature review of the systematics, biology and role in malaria transmission of species in the Afrotropical Anopheles subgenus Anopheles (Diptera: Culicidae)
Author
Coetzee, Maureen
text
Zootaxa
2022
2022-05-04
5133
2
182
200
journal article
55700
10.11646/zootaxa.5133.2.2
ab46536f-264d-4372-b58e-c16649a0dd75
1175-5326
6521605
A227A794-4435-4FBE-B021-45EF51C56203
Anopheles tenebrosus
Dönitz, 1902
1928.
Anopheles mauritianus
var.
tenebrosus
of Edwards
1936.
Anopheles coustani
var.
tenebrosus
of de Meillon
TYPE
LOCALITY
:
Wadi Natrun
,
Egypt
.
DESCRIPTION:
Wing length
: 5.0 mm.
Wing
(
Fig. 9a
): Similar to
An. ziemanni
but apical pale fringe spot may be reduced, subcostal pale spot sometimes absent, and rarely, costa entirely dark.
Maxillary palpus
: Shaggy, with four pale bands.
Legs
(
Fig. 9b
): Apex of foretibia and base of foretarsomere 1 always dark. Apex of hindtibia narrowly pale; hindtarsomere 1 entirely dark basally; hindtarsomeres 4 and 5 pale, 0.5 of hindtarsomere 3 pale.
LARVAL HABITAT: Natural collections of clear water with aquatic and semi-aquatic vegetation, such as swamps, ponds, backwaters of streams, springs, ditches and rice fields. In laboratory experiments,
Coetzee & le Sueur (1988)
showed that 39.5% of 1,710
An. tenebrosus
eggs survived to fourth-instar larvae in 25% seawater, suggesting that the species could occupy a broader range of larval habitats than previously thought.
ADULT BIOLOGY: Cattle-feeding tendencies were confirmed in
Ethiopia
(
Habtewold
et al.
2004
;
Zeru
et al.
2020
). Long considered unimportant in the transmission of malaria parasites, this was confirmed by recent studies in
Egypt
(
Morsy
et al
. 1995
) and
Mozambique
(
Charlwood
et al
. 2013
; S. Irish, personal communication).
Aranda
et al.
(2005)
in southern
Mozambique
collected 43
An. tenebrosus
in a light trap and reported “a few” positive for circumsporozoite protein “albeit with low optical density values”. No further data were provided, and this requires confirmation.
DISTRIBUTION: Widespread and abundant throughout eastern and southern Africa, including
Angola
. The presence of
An. tenebrosus
in
Gabon
was confirmed by
Paupy
et al.
(2013)
who caught
three specimens
in a light trap in the La Lekedi wildlife park. Also known from
Egypt
,
Israel
,
Jordan
, eastern and southwestern
Saudi Arabia
,
Yemen
and the
Dhofar
coast of
Oman
(
Evans 1938
;
Peffly 1959
;
Gillies & de Meillon 1968
;
Glick 1992
;
Morsy
et al.
1995
;
Abdullah & Merdan 1995
).