GENUS STEGOMYIA 377 



9. STEGOMYIA AFRICANA, Theobald (Monog. I, p. 304). 



Veins of the wings with brown scales. Tarsi black with narrow 

 basal white bands on the two upper joints of all the legs ; the 

 hind legs only, with the third joint all white except just at the 

 apex, the next with a narrow basal band and the last all black. 



Thorax (much denuded) with oblique lateral white bars, a 

 spot at the root of the wings and traces of a median white spot in 

 the (? . Abdominal segments black with fairly broad basal white 

 bands; and brilliant lateral snowy tufts (barely visible from 

 above). Proboscis nearly black, unhanded. 



Head black, with a pale spot of scales on the crown, and with long 

 dark bristles ; eyes golden-green (in the sun) ; antennae pale brown ; basal 

 joints large ; proboscis deep brown, unhanded ; palpi of 5 , dark brown, 

 last jomt with large pure white scales, of the ^ , black, its joints with 

 four basal white bands, the two proximal ones much broader than the 

 two apical, scutellutn dark with a few white scales ; pleurae ferruginous 

 with several white patches. Legs black. Halteres white with black 

 knobs. Tarsal claws of ^ simple, but very unequal m the fore and mid 

 legs ; of the ? subequal with an accessory tooth to each of the fore claws. 

 Length. — 4"5 mm. 



Habitat. — Africa, Sierra Leone, Lagos, Old Calabar, Mashonaland. 



10. STEGOMYIA SEXLINEATA, Theobald (Monog. I, p. 308). 



Veins of wings with long, but rather broad, brown scales. 

 Tarsal joints black, with broad white basal bands to the 3 

 upper, of the hind, and narrower ones on the 2 upper, of the fore 

 and mid legs. Thorax nearly black, with a pair of complete 

 tine submedian white lines, and two other shorter lateral pairs 

 in front, but wanting on the posterior 3rd of the mesonotum. 

 Abdominal segments steely-black, with narrow pale basal bands 

 on all but the tirst two ; and silvery lateral spots to all, those of 

 the 5th, 6Lh and 7th extending on to the dorsum ; proboscis 

 unhanded, nearly black. 



Head black, with a median and two lateral pairs of white patches, 

 clypeus black. Antennse with white scales on the basal joint; palpi 

 black with white patches at the bases of the last two joints. The 

 thorax, in addition to its six tine lines, has a white spot in front of the 

 roots of the wings ; scutellum nearly black, a little lighter on the middle 

 lobe ; pleurae black with snowy patches. Legs black except just at the 

 bases of the femora, a white knee- spot, and a speck on the outer side of 

 the femora. Tarsal claws eijual and simple. Halteres yellow with dark 

 knobs. Venter black. Length. — 4 mm. 



Habitat. — Trinidad at Aqua Santa, December. 



