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

RIBgIRO, H. & RAMOS, H. Cunha -- <strong>Research</strong> on the mosquitoes of Angola X
MUNHINO (20 km W), 1 9, 1 c, 7.V.1969; MUTANGO, 14 larvae, 9.V1.1965:
4.XI1.1965 and 2-3.V.1966; NANGURA, 1 c plus 4 larvae, 14.VI. 1965, 9.XII. 1965
and 2.V. 1966; N'GIVA, 6 larvae, 23.IV. 1972 (Dr. V. M. R. Casaca coll.); PANDA,
6 larvae. 13.IV.1965 and 2.IV. 1966; PICO DO AZEVEDO (Pedras Salvadoras), 10
larvae, 10.V.1969; QUELA, 3 larvae, 29.I.1970; QUIMBANGO, 6 larvae, 15-16.VI.
1970; QUISSOL, 2 larvae, 21.1.1970; SO NICOLAU, 13 larvae, 28.IV.1969;
TCHIVINGUIRO, 6 larvae, 29.V.1969; UiGE, 1 9, 2 plus 3 larvae, 25.IX.1969;
VIREI, 3 9, 3 plus 13 larvae, 7-9.V. 1969, all new locality records. Also CEI-
LUNGA (circa Bi6), 1 c plus 13 larvae, 11.IX.1969; LUANDA, I larva, 8.IV.1971,
and HUAMBO (= NOVA LISBOA), 59 9, 47 plus 56 larvae, 24-25.I.1964,
11o19.IX.1965, 9.XII. 1965, several dates in 1966 and 1970, and 10.V.1971.
TAXONOMIC NOTES. Since the description of C. univittatus, C. perexiguus
and naevei, as distinct full species, by Theobald (6) (86), the
taxonomic status of these closely allied and largely sympatric forms
has been subjected to much controversy by Edwards (87) (8), Mattingly
(68), Senevet et al. (88), Mattingly & Knight (85), Jupp (89) (90),
White (91), and others. In the World Catalog by Stone, Knight &
Starcke (17) the views of Edwards in this matter were followed, C. perexiguus
being treated as a junior synonym of C. univittatus, while C.
neavei was sunk into > status. In the new edition of the World
Catalog by Knight & Stone (23), however, C. neavei is given again
a full specific rank, in agreement with the views expressed by Jupp.
On the other hand, in the more recent paper by White (91), not only
neavei but also perexiguus are tentatively reinstated to full species rank,
a key being provided to the adults of the three African species of this
univittatus group (op. cit., pp. 321-322).
In Angola, as it was to be expected on distributional grounds,
form perexiguus does not occur, which could be stated through the
examination of the well-developed on the lateral aedeagal plate
in a sample of 17 males from several localities.
In that concerns univittatus s. str. and neavei, both Jupp and White
agree that females may be separated by the presence, in the former, of
a complete pale stripe along the anterior surface of mid femur. This same
criterium is used by White also for separating the male specimens, while
Jupp prefers the shape of the foliole on the apical lobe of coxite,
expressed as his >.
In 6 (3 , 3 ) out of the 48 (22 , 26 ) specimens examined from
several Angolan localities, there was a practically complete anterior pale
Estud., Ens. e Doc.- 134 117