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

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RIBgIR0, H. & RAMOS, H. Cunha -- <strong>Research</strong> on the mosquitoes of Angola m X females). All the Angolan material examined by the present writers, here dealt with, is only provisionally identified as C. ingrami Edws. (see below). MATERIAL EXAMINED. CABINDA, 2 larvae, 2 pupae, 19.VIII. 1970; CA- BUTA, 1 larva, 12.VI.1970; CARLAONGO, 1 , I larva, 5.XI.1969; LUCALA RIVER, 6 larvae, 28.VIII. 1969; MUMBONDO, 2 9, 2 , 15 larvae, 7-8.V.1970; MUXIMA, 17 larvae, 30.1V.1970. TAXON, OMIC NOTES. Since the original description of C. ingrami (Ghana males) by Edwards (55) and that of the larvae and pupae by Macfie & Ingram (56) (57), many larval and some adult (terminalic) varieties have been described, though not named, by Galliard (58), Edwards (8), Hopkins (24), Rageau & Adam (59), Peters (60), Service (61), Pajot (62) and others. It seems quite evident that much of this variation, particularly that concerning larvae, must be interpreted as polymorphic in nature. Angolan larvae, however, besides exhibiting a marked polymorphism of :he kind described by these different authors, constantly show the presence of a tergal plate on abdominal segment viii, as described byd Pajot (op. cit.) on Cameroon larvae, which separates them immediately from ingrami s. str. Moreover, these larvae are associated with males whose terminalia also show non-negligible differences from those of both C. ingrami s. str. and of Pajot's form. These are the reasons why this Angolan form here provisionally determined as C. ingrami is thought to be, in fact, a distinct though closely allied taxon, to be dealt with in another paper. DISTRIBUTION. Map 17 shows the known distribution of the Angolan form of C. ingrami s. l. It is assumed that the previous Caxito record by B. Worth & Paterson also concerns this Angolan form. BIOECDIaOGICAL NOTES. These notes refer exclusively to the Angolan form examined by the writers, closely allied to ingrami. This is a ground water breeder, as it is the case for all the taxa of the group. Both stagnant and running water are used by the present form, as it can be seen from the 8 larval biotopes recorded by the writers: niches and pools at river edges (3), rain-water ground pools (2), overflown river margins (2) and one stream. The breeding water was either turbid or clean, being at Estud., E.s. e Doc,- 134 83
RIBgIRO, H. & RAMOS, H. Cunha -- <strong>Research</strong> on the mosquitoes o[ Angola -- X times greenish from microscopic algae. Some kind of macroscopic vegetation was usualy present in the breedifig water, while the larval biotope was often shaded by surrounding vegetation. Larvae of 10 Culicines and 4 Anophelines were found as associates, those of An. rivuIorum, C. decens and C. inconspicuosus being the most common. Fig. 1 shows a larval biotope of C. ingrami. Like C. guiarti, both C. ingrami s. str. and the closely allied Angolan form seem to be relatively rare mainly zoophilic mosquitoes. 7.5.13 -- Culex (Culex) invidiosus Theobald, 1901 C. invidiosus s. str. is a new record for Angola. MATERIAL EXAMINED. DUNDO, 1 3, 15 larvae, 19.VIII. 1969; HUAMBO, 1 3, 1 larva, 24.I.1964; MONA QUIMBUNDO, 4 9, 6 3, 5 larvae, 10.IV. 1970; MUXIMA, 1 9, 1 3, 29.IV. 1970; SAURIMO, 1 9, 1 3, 12.IV. 1970. TAXONOMIC NOTES. For a general taxonomic discussion of C. invidiosus, see var. vexillatus (7.5.14). As it is well known, larvae of antennatus, decens, invidiosus s. l., trifoliatus and univittatus (larval ornatothoracis remains undescribed) ressemble closely one another and it is not uncommon that individual specimens cannot be separated. Neverthless, if representative samples of the different local populations are available, a specific determination becomes often possible, even in the case of the closest allied larvae of decens and invidiosus. Within C. invidiosus (s. l.), the larva of ssp. vicinalis was not described and that of C. invidiosus s. str. cannot be separated from that of var. vexillatus. In all our invidiosus s. str. male terminalia d, d', e and ! are present. Setae d and d' are minutely barbed aplically, e is a narrow delicately striate foliole and f is always a larger obviously striate, nearly symmetrically expanded foliolar process. DISTRIBUTION. C. invidiosus s. l. is a widespread mosquito in Tropical Africa, though mainly associated with West African biomes. The known Angolan locality records of C. invidiosus s. str. (male records), all of them at latitudes less than 13 ø S, are shown on Map 16. 84 Estud., Ens. e Doc. -- 134
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!NTA DE INVESTIOAQOE8 IENTIFICAS DO
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VOLUMES J/ PUBLICADOS NA COLEC(3,O
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36--A Entomofauta dos Produtos Arma
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75 -- Notas sobre a Criaqo de Gado
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CDU 576.895.711 (673) JUNTA DE INVE
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I --INTRODUCTION With this paper on
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4--ON THE ZOOGEOGRAPHY OF ANGOLA On
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REFERENCES 1--ROQUE, A. B.--
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