12 Mr. R. E. Turner on 
sulcus. Second sternite subopaque, minutely and closely 
punctured, with a shining subtriangular space on the middle 
of the apical margin. Pygidial area triangular, narrowly 
rounded at the apex. Basal joint of fore tarsi with six 
spines. First and third abscisse of the radius subequal, 
each nearly twice as long as the second, and nearly half as 
long again as the space between the recurrent nervures on 
the cubitus. Third cubital cell on the cubitus extending a 
little beyond the apex of the radial cell. 
3. Hyes separated on the vertex by a distance not quite 
equal to half the length of the second joint of the flagellum ; 
punctures of the second sternite distinctly larger than in 
the female ; seventh tergite subtriangular, rounded at the 
apex, the apical angles not produced. 
Hab. Senegal (Guérin) ; N. Nigeria, Zungeru (J. W. 
Scott-Macfie), November. 
I am doubtful if Magretti (Ann. Mus. Civ. Genova, xxi. 
p. 586, 1884) has correctly identified the species he records 
from Kassala under this name. 
6. Tachytes observabilis, Kohl. 
Tachytes observabilis, Kohl, Ann. Naturh. Hofmus. Wien, ix. p. 295 
(1894). ¢. 
? ¢. Extremely near to J. basilica, Guér., differing in 
the black colour of the abdomen, legs, and antenne in both 
sexes. The abdominal segments are very narrowly brown 
on the apical margin, and the gold pubescence on the 
abdomen is denser and deeper in colour than in T. basilica. 
The female has the clypeus very broadly rounded at the 
apex, not subtruncate as in basilica. 
Hab. Zanzibar (Kohl) ; Nyasaland, Mlanje (S.A. Neave), 
December to February; British E. Africa, Kuja Valley, 
S. Kavirondo, 4000 ft. (S.A. Neave), April ; Uganda Pro- 
tectorate, Valley of Kafu River, Unyoro, 8400 ft. (S. A. 
Neave), December ; Angola (Monteiro). 
This is probably only a geographical race of 7. basilica, 
ranging over Tropical E. Africa and the southern portion 
of Tropical West Africa. It occurs in Nyasaland with the 
very similar 7. mira, Kohl, but may be distinguished at 
once by the very different sculpture of the second sternite 
of the female, and by the much greater approximation of 
the eyes on the vertex in the male; also by the number 
of joints in the palpi. 
