Genus Pyretophorus. 41 
var. melas. Theobald (1903). 
Mono. Culicid. III.,®76 (1908). 
Gambia. 
Type in the British Museum. 
Pyretophorus merus. Donitz (1903). 
Zeitschrift fur Hygiene XLI., 77 (1908), Donitz; Mono. Culicid. III., 79 
(1903), Theobald. 
Dar es Salaam and Mbalba, S. of Victoria Nyanza and 
Franzfontein, S.W. Africa. 
Evidently near cinereus , Theob., but in Table comes near 
costalis, but the wing fringe spots are broader. I have not seen 
this species. The femora and tibiae have light spots and stripes. 
Pyretophorus marshalii. Theobald (1903). 
Mono. Culicid. III., 77 (1903), Theobald; Anns. Trop. Med. and Parasit. I., 
No. 1, 9 (1907), Newstead. 
Salisbury, Mashonaland. 
Additional localities. —Boma ; Leopoldville (May) ; Coquil- 
hatville ; Yambinga (Newstead). 
Observations. —Newstead remarks on six 9’s be received from 
the Congo Free State as follows :—■“ They were all associated 
with P. costalis , but may readily be distinguished from the latter 
by the characteristic banding of the palpi. It is important to 
notice, however, that among the long series of P. costalis there 
are many intervening forms between typical examples of the 
two species.” 
This being so it is quite reasonable to assume the marked 
insects I received from Mashonaland may be only sub-species or 
a variety of costalis. 
Type in the British Museum. 
Pyretophorus pseudocostalis. nov. sp. 
Thorax slaty grey in the middle, rich brown at the sides; 
abdomen black with golden hairs ; palpi black with two broad 
apical white bands and one small basal one; legs with narrow 
apical banding. Wings normally as in costalis. 
9 . Head black, clothed with dense black apically expanded 
fork-scales, with a patch of snow white ones in front; proboscis 
