248 MEDICAL ENTOMOLOGY 



joints, white; black band near base of third. This species is closely 

 related to A. pretoriensis. It is found in British East Africa, Gold 

 Coast, North and South Nigeria. 



Anopheles (Nyssorhynchus) maculipalpis, Giles. According to Ed- 

 wards, who has re-examined the British Museum specimens, this species 

 is identical with the Indian anophelene bearing the same name (see 

 page 233). It is widely distributed, and is recorded from the Transvaal 

 Rhodesia, Congo and Nigeria. 



Anopheles (Nyssorhynchus) pretoriensis, Theobald. This species 

 closely resembles maculipalpis, except that the palpi are not mottled 

 with white, and the bands are further apart ; the last two tarsi of the 

 hind leg are all white. The larva is said to differ from that of maculipal- 

 pis in having the frontal hairs unbranched, the outer very short and the 

 median long and thin. It is found in the Transvaal and Natal. 



Anopheles (Christy a) implexus, Theobald. A large species. Palpi 

 with three white bands, and white apices. Thorax brown with golden 

 yellow scales. Abdomen black with long dense lateral tufts of black 

 and golden hairs, the black ones in apical tufts. Legs brown, femora 

 and tibiae spotted, third and fourth segments of hind tarsi white, the 

 last segment black. A very striking Anopheles, for which Theobald 

 erected the genus Christya, of which it is the only species. 



Anopheles (Pyretophorus) thelleri, Edwards (P. albipes, Theobald). 

 No description is given, but it is said to be a very distinct species, 

 but in its wing markings almost identical with A. wellcomei (?) Theobald 

 (see below). It is found in the Transvaal. 



Anopheles ( sensu restricto) wellcomei, Theobald. Palpi with two 

 white bands, one near the apex, and the other about one-fourth the way 

 down. Thorax ash grey with a broad dark median stripe. Abdomen 

 ochreous. Legs brown with very narrow yellow apical bands. Costa 

 with two well marked yellow spots near the apex. From the Soudan, 

 Northern Nigeria, and Angola. 



Anopheles (Myzorhnchus) natalensis, Hill and Haddon. Palpi with 

 five pale bands including the apex. Costa with three white spots and a 

 fourth at the apex. Legs spotted and banded. First hind tarsi with 

 broad apical bands, last tarsi two and a half to two and three quarters 

 white. Natal. 



Anopheles (Pyretophorus) ardensis, Theobald. Palpi with three nar- 

 row white bands and white apices. Thorax greyish brown. Legs brown, 

 femora, tibiae, and metatarsi spotted, remaining tarsi with apical pale 

 bands. It is found in Natal and is probably only a variety of A. costalis. 



