Genus Myzorhynchus . 
53 
Myzorhynchus nigerrimus. Giles (1900). 
Anopheles nigerrimus. Giles (1900). 
Handbook Gnats, 161 (1900), Giles; Mono. Oulicid. I., 145 (1906), 
Theobald. 
India. 
Type in the British Museum. 
Myzorhynchus mauritianus. Grandpre (1900). 
Anopheles mauritianus. Grandpre (1900). 
Anopheles paludis, var. similis. Theobald (1901). 
Anopheles tenebrosus. Donitz (1902). 
Les Moust. Planter’s Gaz. Press (1900), Grandpre; Mono. Cnlicid. I., 129 
(1901); III., 85 (1903); IV., 88 (1907), Theobald; Anns. Trop. Med. 
and Parasit. I., No. 1, 10 (1907), Newstead; Anns. Trop. Med. and 
Parasit. II., No. 3, 260 (1908), D’Emmerez de Charmoy. 
Mauritius ; Madagascar ; Uganda ; Natal; Pretoria ; British 
Central Africa; Cairo; Bahr el Ghazal; Wadi Natrun, Lower 
Egypt. 
Additional localities. —Curepipe, Yacoa and Phoenix, in 
Mauritius (d’Emmerez de Charmoy) ; Kukema Biver, Bihe, 
Angola, West Africa (Creighton Wellman), 3 9 ?s , 30. i. 05 and 
2 . ii. 05 ; Zambie, Boma, Leopoldville! (Dec.), Bamu Island, 
Kasongo (Dec.), in Congo Free State (Newstead) ; Bank of 
Lualuba River, Congo Free State, 10° 30' S. Lat., 27. vi. 07 
(Dr. A. Yale Massey); Kie Road, King William’s Town (C. G. H.), 
16. and 17. ii. 07 ; Elsenberg, Stellenbosch (C. G. EL), 20. i. 07 ; 
Stent Pillows, 6. 7. and 8. ii. 07, Cape Colony (per Dr. 
Lounsbury); Tananarive, Madagascar (Dr. Sal vat); Delagoa Bay 
(Jose Sant Anna). 
Notes and observations. —Yery common everywhere in 
Mauritius, especially at localities given above by d’Emmerez de 
Charmoy. All the specimens caught in the open air at Phoenix 
and Yacoa, where malaria is prevalent, were found not to be 
infected. Ross puts this as a doubtful carrier in Mauritius. 
The following note is reproduced :—■“ 54 examples which were 
fed on blood containing crescents and other gametes gave one 
positive result; 56 other examples caught wild were negative.” 
In the Congo Free State imagines were caught only in the 
forest at Bamu Island. Larvae and pupae were taken from 
among the grass along the river edges, from swamps, from rain- 
