﻿10 F. W. EDWARDS — A SYNOPSIS OF THE SPECIES OF 



This species is easily recognisable by the characters given in the table, but it 

 is closely related to S. poweri, the markings of the thorax and abdomen being 

 almost identical. 



Angola. 



4. S. africana, Theo., Mon. Cul. I, p. 304 (1901). 



Stegomyia dubia, Theo., Mon. Cul. V, p. 170 (1910). 

 S. dubia was, to use Theobald's own expression, " described from a worn and 

 damaged female," but there is no visible character by which to separate it from 



5. africana. 



Hind femora in front with a large silvery spot about the middle, a small one 

 close to the apex. Thorax with large oblong silvery lateral patches, and a fine 

 yellowish median line, not always visible. Abdomen without distinct bands, but 

 with lateral white spots, extended towards the mid-dorsal line in the middle of 

 each segment ; those on the seventh segment visible dorsally. Scales on pleurae 

 silvery. 



Sierra Leone ; N. & S. Nigeria ; Congo ; Uganda ; Angola ; N. E. Rhodesia. 



5. S. iuteocephala, Newstead, Ann. Trop. Med. 1, p. 15 (1907). 

 Kingia Iuteocephala, Theo., Mon. Cul. V, p. 136 (1910). 

 This species must be taken as the type of the Theobaldian genus Kingia, 

 which, if retained, would include all the African Stegomyia except S. fasciata, 



5. sugens, S. albomarginata, and S. argenteoventralis. 



Very much like S. africana. A yellow patch on each side of the thorax above 

 and in front of the roots of the wings. Scales on pleurae pale golden. Abdomen 

 with narrow dull yellowish basal bands. Hind claws toothed. 



Sudan ; Uganda ; S. Nigeria ; Congo. 



6. S. poweri, Theo., J. Econ. Biol. I, p. 18 (1905). 



Thorax with a fine median yellowish line, becoming broad and silvery in front ; 

 with the usual two lateral silvery-white spots. Abdominal segments 2-6 with 

 dull white basal bands. Hind femora with the basal half white. Hind tibiae 

 broadly white at the base beneath. 



Very close to S. pseudonigeria, but easily distinguished by the white spot on 

 the mid femora, and the black fifth joint of the hind tarsi. 



Congo ; British East Africa ; N. E. Rhodesia ; Bechuanaland ; Natal. 



7. S. apicoargentea, Theo., Mon. Cul. V, p. 172 (1910). 



Thorax with two large roundish silvery-white spots, and two smaller ones just 

 in front of the bases of the wings. Median lobe of scutellum with silvery white 

 scales, lateral lobes with black ones. Scales bordering the bare space in front of 

 the scutellum black. Segments 1-4 of abdomen with the lateral patches large, 

 white ; on 5-7 they are smaller, silvery ; segments 5-8 (sometimes 4-8) with 

 median basal silvery patches. Fore and mid femora with a silvery w r hite line 

 beneath, especially marked near the apex of the fore femora ; mid femora 

 silvery at the apex in front ; hind femora in front with the basal half and also 

 the apex silvery ; behind they are all black, except at the base where they are 

 yellowish. Hind tibiae with a white mark on the outside about one-third of the 



