Wasps of the Genus Tachytes. 41 
margin deflexed ; vertex very closely microscopically punc- 
tured; eyes separated on the vertex by a distance about 
equal to the length of the second joint of the flagellum. 
Galea shorter than the scape. Basal joint of the fore tarsus 
with five spines ; spur of the hind tibia as long as the basal 
joint of the hind tarsus. Thorax closely and minutely 
punctured ; second sternite and the third, fourth, and fifth 
sternites on the apical margin closely and minutely punc- 
tured; the three latter shining at the base, with large 
scattered punctures. Pygidial area triangular, rather nar- 
rowly rounded at the apex. 
Hab. Gold Coast, Northern Territories, Yapi (J. J. Simp- 
son), December. 
50. Tachytes notadilis, sp. n. 
2. Nigra, gracilis, rugosula, sparse cinereo-pilosa ; fronte clypeoque 
aureo-pubescentibus ; segmentis dorsalibus 4 basalibus fascia 
apicali griseo-argentea ; tegulis testaceis ; calcaribus, unguiculis, 
tarsisque articulis apicalibus subtus ferrugineis; alis subhyalinis, 
venis testaceis ; area pygidiali aureo-pubescente. 
3d. Femine similis. 
Long., 9 11-13 mm., g 11 mm. 
?. Clypeus very broadly truncate at the apex; vertex 
closely and very finely punctured, with large sparse punc- 
tures intermingled; eyes separated on the vertex by a distance 
about equal to the length of the two basal joints of the 
flagellum. Thorax very finely rugulose; median segment 
more strongly rugulose, nearly twice as long as the scu- 
tellum. Basal joint of the fore tarsus with five spines; spur 
of the hind tibia as long as the basal joint of the hind tarsus. 
Second sternite minutely and closely punctured; pygidial 
area triangular, somewhat elongate, rather narrowly rounded 
at the apex. Galea shorter than the scape. Third abscissa 
of the radius shorter than the second; third cubital cell 
narrow, extending on the cubitus further than the apex of 
the radial cell. 
6. Eyes as far apart on the vertex as in the female ; 
seventh tergite broadly rounded at the apex, rather sparsely 
clothed with very pale golden pubescence ; eighth sternite 
semicircularly emarginate at the apex. 
Hab. Nyasaland, Mlanje (S. A. Neave), January to June; 
Uganda, Entebbe (C. G. Gowdey), September ; British 
East Africa, Tiwa River, Ukamba (S. W. J. Scholefield), 
January. 
‘The Uganda and East African specimens have the pygidial 
