Mr. R. E. Turner on FossorialHymenoptera. 291 



fusco-ferrugiiieis ; palpis, antennis, tegulis pedibusque ferru- 

 gineis ; f rente clypeoque pallidissime aureo-pubescentibus ; seg- 

 mentis dorsalibus secuudo, tertio quartoque angulis apicalibus 

 late argenteo-pubescentibus ; pygiclio fusco-ferrugineo setoso ; 

 alis flavo-byalinis, venis ferrugineis. 



S . Feminae similis ; fronts clypeoque Isete aureo-pubescentibus. 



Long., § 23, 6 22 mm. 



? . Clypeus broadly subtrimcate at the apex ; galea 

 distinctly longer than broad, rounded at the apex; palpi not 

 elongate. Second and third joints of the flagellum subequal ; 

 eyes separated on the vertex by a distance about equal to the 

 length of the second joint of the flagellum. Vertex very 

 minutely and closely punctured^ with a low longitudinal 

 carina from tlie occiput not reaching to the ocellar space. 

 Posterior slope of the median segment irregularly trans- 

 versely striated ; a small smooth triangular depression at the 

 apex of the dorsal surface of the segment, which is finely 

 rugulose and about half as long again as the scutellum. 

 Dorsal surface of the abdomen shining, closely and minutely 

 punctured ; pygidial area broadly rounded at the apex. 

 Sternites 2-4 shining, wnth large scattered punctures. Basal 

 joint of the fore tarsus with six rather short and stout spines ; 

 spur of the hind tibia longer than the basal joint of the hind 

 tarsus. Second and third abscissas of the radius subequal ; 

 the space between the recurrent nervures on the cubitus equal 

 to the second abscissa of the radius. 



cJ . Clypeus very broadly rounded at the apex ; eyes very 

 close together on the vertex, separated by a distance scarcely 

 equal to the length of the first joint of the flagellum. Seventh 

 dorsal segment broadly rounded at the apex; eighth ventral 

 segment subtruncate, very feebly emarginate in the middle, 

 the angles not produced. Sternites shining, sparsely punc- 

 tured, but more closely and finely than in the female. 



Hah. Yapi, Gold Coast {J. J. Simpson), November 1916. 



This is near T. tesiacehierva, Cam., differing in the much 

 sparser pubescence of the thorax and median segment, in the 

 distinctly longer galea, in the presence of a carina on the 

 vertex of the female, in the broader pygidial area, and in the 

 distinctly sparser punctures of the sternites; the seventh 

 tergite of the male is also much broader. 



TacTiytes ohliqua, Sm. 

 Larrada ohliqua, Sm. Cat. Hym. B.M. iv. p. 281 (1856). S (as $). 



This is a Tachytes somewhat allied to silverlocki, Turn., 



