228 ENTOMOLOGICAL NEWS. [May, ’08 
Angola are of great interest, my small collection having al- 
ready turned up several fine new forms, including a new genus. 
The peculiar abdominal pouches of the Xylocopid group, en- 
closing parasitic mites (Paragreenia Ckll.) is also most in- 
teresting, as is the mimicry and parasitism in the whole familly. 
24. 
No. 1554. Tabanus biguttatus Wied. (Dipt.) 
This fly is representative of the powerful group which in- 
cludes, in my collection, several new species. T. latipes Macq. 
is the handsomest member, while the one named in the title to 
this note is of special interest on account of its mimicry of a 
wasp. The two species here named, with several others (not- 
ably T. socius Walk. and T. rubricundus Walk.), make life a 
burden to cattle, and occasionally attack man. 
25. 
No. 1060. Clytus semiruber Qued. (Coleopt.) 
A common Cerambycid beetle (represented here by a variety, 
probably new) which is typical of a large group. They do 
great damage to dry timber. C. semiruber (which is distaste- 
ful and rejected by insect-eating animals) is a Millerian mimic 
of Zonabris dicincta Bert. 
26. 
No. 1555 seq. Salius spp. (Hymenopt.) 
Such -formidable wasps as Salius vindex Sm., S. dedjax 
Guér., and S. regina Sauss., are reinforced by scarcely less 
powerful representatives of Scolia, Synagris and Sphex. The 
number of species is very large in the region, and the more 
aggressive ones are best left alone. I once saw a gigantic 
Salius chase a native boy several rods. The sting, of such 
wasps is severe. The group as a whole is a fine one and several 
of my specimens are new to science. 
27, 
No. 1246. Haematopota ocellata Wied. (Dipt.) 
I have taken a considerable number of Haematopotae nearly 
a dozen of which have been pronounced new species. These 
flies are a terrible pest in the wet season, both to men and 
