. Blood-sucking mosquitoes of the subtribe Culisetina (Diptera, Culicidae) in world fauna. Mosquitoes. 80 66 setae of different sizes. Some are set on the highly convex dorsal surface (1-6) and others on the thoracic callosities; one seta (13) occupies the ventral position. In the larvae of Culisetina, the dorsal setae, with the exception of the prothoracic, are usually poorly devel- oped as are the ventral ones. On the prothorax of all Culisetina, the dorsal setae are located on the anterior margin (Figs. 46 and 47). The first three are set close to each other and their sclerotized bases are
. Blood-sucking mosquitoes of the subtribe Culisetina (Diptera, Culicidae) in world fauna. Mosquitoes. 80 66 setae of different sizes. Some are set on the highly convex dorsal surface (1-6) and others on the thoracic callosities; one seta (13) occupies the ventral position. In the larvae of Culisetina, the dorsal setae, with the exception of the prothoracic, are usually poorly devel- oped as are the ventral ones. On the prothorax of all Culisetina, the dorsal setae are located on the anterior margin (Figs. 46 and 47). The first three are set close to each other and their sclerotized bases are fused into a single complex. In Culiseta s. str. and A. longiareolata, these, like the other dorsal setae of the prothorax, are small with a varying number of branches, especially the setae 3, 4 and 5 (Fig. 46). In Culicella, the dorsal setae of the prothorax have a small number of branches, but with significantly greater dimensions and thickness (Fig. 47). Their length, especially that of seta 3, could exceed the length of the thorax and hence the ends of these setae (3-6) turned anteriorly are seen along the anterior margin of the head. Dorsal setae of the meso- and metathorax, as a rule, are even weaker than those of the prothorax. In the subgenus Culicella, they are hardly noticeable; in other cases, the first three are rudimentary and setae 4-6 are visible (Fig. 47). The lateral setae on all thoracic segments (Figs. 46 and 47) are well developed. In Culicella (Fig. 47) and Cli- macura, they are very long and single branched in most cases (Fig. 46) while, in the other larvae, they are shorter with pubescence and a greater degree of branching, especially setae 8-10 on all segments of A. longiareolata. Setae 9-12, representing the complex of pleural setae, are set on a common, heavily sclerotized base. In the subgenus. Fig. 46. Chaetotaxy of thorax in the 4th instar larvae of the subgenus Culiseta s. str. (C. bergrothi). d—dorsal setae; v—ventral setae; numerals denote th
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Keywords: ., bookcentury1900, bookcollectionbiodiversi, booksubjectmosquitoes
