— 24 — 



colour of the basal part of the abdomen, the small develop- 

 ment of the distal spot on the wing and the tinge in the 

 middle of the Aving. 



1 specim. d", from Mabira. 



Diopsis tenuipes Wstw. 



Westwood. Trans. Linn. Soc. XVII, p. 298, tab. IX, f. 5 d' (1835). 



, p. 545, tab. XXVIII, f. 5 ?. 



Two males probably belong to this species. The abdomen 

 is wide, flat, of a light brownish-red, nearly brick-red colour, 

 as in thoracica Wstw. The specimens that I have from Usum- 

 bura, German East Africa, are darker. 



2 dd from Chala, 2. VIII. 



? Diopsis fumipennis Wstw. var. 



Westwood. Trans. Linn. Soc. XVII, p. 302, tab. IX, f. 9 (1835). 



One specimen which is far from being preserved in a good 

 state reminds tenuipes AVstw. from the first glance. But it 

 differs in the colour of the abdomen which is provided with 

 three wide dark-broM^n transverse bands. Besides, in this spe- 

 cimen the legs differ in a ligther, yellowish colour. In the 

 general aspect and chiefly in the abovementioned tw^o charac- 

 ters this specimen strongly resembles the several specimens 

 from Usumbura which I consider as a variety fumipennis 

 with a transversely striped abdomen. 



1 ? from Mabira, 12. VI. 



Diopsis thoracica Wstw. 

 Trans. Linn. Soc. Lond. XVII. 1837, p. 306 -.307, Tab. IX, f. 15. 



Besides the single specimen from prof. Dogiel, I have 

 before me 8 specimens more collected by Staudinger in So- 

 maliland and Zanzibar, which all resemble each other fully 

 and without doubt belong to the species thoracica Wstw. 

 Only in one important character they do not correspond to 

 West wood's description, viz. in the presence of distal spi- 

 nes on the middle femora. This character is important, but 

 think it must be taken into consideration that Westwood's 

 type was not quite intact, as he himself asserts, therefore, it 

 is possible that the spines named had fallen off in his case- 



