BITING AND NOXIOUS INSECTS OTHEB THAN MOSQUITOES 39 At Roseires, in November, I found numerous specimens of beetles belonging to the Cantharidas, genus Mylabris. Captain Ensor reports them as being common in the Kassala district, where they are called “ Fasseea.” Captain Rivers states that they occur in great numbers in Kordofan. Probably several other species exist. Samples of similar vesicating insects from South Africa have appeared on the London market, and yielded from 1*09 to 1*02 per cent, of cantharidin.1 Mylabris bifasciata of the Cape of Good Hope was found by Braithwaite2 to be extremely rich in cantharidin. It is quite possible that these beetles may be of some economic value. The subject seems worthy of further investigation.

[These beetles are figured on Plate A, and a note regarding them is appended to the plate.—F. V. T.]

% 1 Dispensatory of the United States 2 P..J. Tr. xviii. 24G