32 Mr. R. E. Turner on 
tibiis tarsisque ferrugineis; alis hyalinis, pallidissime flavo- 
tinctis, venis ferrugineis. 
Long. 13 mm. 
g. Clypeus very broadly rounded at the apex; vertex 
sparsely punctured. Eyes separated on the vertex by a 
distance only slightly exceeding half the length of the 
second joint of the flagellum ; median segment about half 
as long again as the scutellum. Second sternite shining, 
evenly, but not very closely punctured; seventh tergite — 
broadly subtriangular, rather broadly truncate at the apex, 
and clothed with silver pubescence faintly tinged with gold; 
eighth sternite widely and rather shallowly emarginate, the 
angles produced into distinct teeth. Third abscissa of the 
radius longer than the second, but shorter than the distance 
between the recurrent nervures on the cubitus. Third 
cubital cell very little shorter on the cubitus than the second. 
Basal joint of fore tarsus with five spines. 
Hab. N. Rhodesia, Pakasa (O. Silverlock), January. 
37. Tachytes neglecta, sp. n. 
©. Nigra; fronte clypeoque subargenteo-pubescentibus ; thorace 
fulvo-pubescente ; segmento mediano griseo-fulvo-hirsuto ; seg- 
mentis dorsalibus 4 basalibus fascia apicali griseo-argenteo- 
pubescente; area pygidiali apice subacuta, aureo-pubescente ; 
tegulis testaceis ; segmentis abdominalibus margine apicali 
brunneis; tibiis tarsisque ferrugineis; alis hyalinis, pallide 
flavo-tinctis, venis testaceis. 
¢. Femine similis. 
Long., 9 12-14 mm., g 13-14 mm. 
@. Clypeus very broadly rounded at the apex; vertex 
sparsely and shallowly punctured; eyes separated on the 
vertex by a distance equal to the combined length of the 
first and second joints of the flagellum. Median segment 
less than half as long again as the scutellum, the median 
sulcus indistinct. Second ventral segment subopaque, very 
minutely and closely punctured; pygidial area subacute. 
at the apex. Third abscissa of the radius longer than the 
second, about equal to the distance between the recurrent 
nervures on the cubitus; third cubital on the cubitus at 
least two-thirds of the length of the second. Basal joint 
of fore tarsus with six spines. 
g. Eyes separated on the vertex by a distance slightly 
exceeding the length of the second joint of the flagellum ; 
seventh tergite very broadly rounded at the apex, clothed 
eT ee ee 
