INTOMOLOGY 845 
Mansonioides uniformis Ingram, 1912, Bull. Ent. Res., III, p. 75, fig. 1 (larva and pupa) (not of 
Theobald). 
Taeniorhynchus (Mansonioides) africanus 8. L. M. Summers Connal, 1928, Bull. Ent. Res., XIX, 
p. 293, Pl. XIIT (pupa). 
Mansonia major Theobald, 1903, ‘Monogr. Culic.,’ III, p. 270, figs. 145-147, Pl. XIII ( ¢; Bahr-el- 
Ghazal, Anglo-Egyptian Sudan). 
BELGIAN Conao. — Kinshasa (taken by Dr. Duren). Congo River, one of 
the most common mosquitoes on board ship, specimens having been taken at 
Mistandungu, Lukolela, Coquilhatville, and Bumba, December 1926. Kisenyi, 
on the northern shore of Lake Kivu, at the altitude of 1,460 m. (4,818 ft.), 
February 1927. 
The remarkable larva lives in swamps or in the quiet backwaters of rivers, 
attached by means of the enlarged and toothed valves of the siphon to the roots 
of aquatic plants, especially of water lettuce, Pistia stratiotes Linnaeus. Mrs. 
Connal, in Nigeria, observed both larva and pupa attached by the siphon to the 
lower surface of the leaves of duckweed (Lemna). The larva remains below the 
surface of the water, taking its air from the vessels of the plants.+ 
T. africanus has much the same distribution in Africa as 7. uniformis. Out- 
side the Ethiopian Region, Edwards has recorded it from Queensland (1924, 
Bull, Ent. Res., XV, p: 365). 
Either this species or its relative, 7. wniformis, has been proved to be an 
effective carrier of the human blood parasite, Wuchereria bancrofti (Cobbold), 
in certain parts of tropical Africa. 
Tribe Anophelini 
Anopheles (Anopheles) mauritianus Daruty de Grandpré var. paludis Theobald 
Anopheles paludis Theobald, 1900, Repts. Malaria Comm. Roy. Soe., p. 75 ( 9; Sierra Leone); 
1901, ‘Monogr. Culic.,’ I, p. 128, fig. 26 ( 9). 
Anopheles mauritianus var. paludis Edwards, 1927, in A. M. Evans, Liverpool School Trop. Med., 
Mem., (N.S.) No. 3, p.51(¢). Edwards, 1928, Bull. Ent. Res., XVIII, 3, p. 268. 
BELGIAN Conao. — Kinshasa (taken by Dr. Duren), where the species is 
much rarer than A. gambiae. Congo River, on board ship, near Bolobo, near 
Nouvelle-Anvers, and at Barumbu, December 1926, and January 1927. 
The early stages of A. mauritianus have been described by Hill and Haydon 
(1907, Ann. Natal Mus., I, pp. 146-152) and Wesché (1910, Bull. Ent. Res., I, 
1, p. 24, Pl. VI, figs. 14-21); the pupa also by Ingram and Macfie (1917, Bull. 
Ent. Res., VIII, 1, p. 76, fig. 2). The larvae are common in swamps where they 
hide among the leaves of floating weeds, especially of the water lettuce, Pistia 
stratiotes Linnaeus. Occasionally, however, they may be found elsewhere in 
stagnant water, even in roadside puddles. 
In various forms A. mauritianus is found throughout the Ethiopian Region, 
as well as in Madagascar, Mauritius, Tripoli, Lower Egypt, and Palestine. In 
Abyssinia it has been taken at an altitude of circa 7,500 ft. In the Belgian Congo 
1 Dr. J. Schwetz has recently published some interesting observations of the larval habits of 7’. 
africanus and T’. aurites in the Belgian Congo (1930, Rev. Zool. Bot. Afric., XVIII, pp. 311-329). 
