A. TULLGREN, HYMENOPTERA ACULEATA FROM THE CAMEROONS. 439 



of the posterior pair of legs with two short teeth at the 

 base. 



Length 30.5 mm. Exp. 61 mm. 



A single male from Bonge ( 15 /io 1891). 



S. (Cyphonyx) camerunensis Tullgr. n. sp. (PL 23, fig. 



4 a, b). 



Female. — Black; with a very faint bluish effulgence; 

 clothed with a very short brownish pubescence, that is most 

 distinct on the sides of the thorax and on the back of abdo- 

 men. On the pronotum and the median segment the hairs 

 are black, short and comparatively few in number. The wings 

 are brownish with the apical margin fusco-hyaline. 



The clypens very broad with the npper margin strongly 

 arcuate, the lower margin very slightly curved convex and 

 smooth. The labrum very little emarginated in the middle. 

 The clypens is mnch broader than the distance between 

 the eyes on the vertex. The cheeks as long as the half 

 breadth of the second joint of the flagellum. The front is 

 nearly flat, the vertex a little impressed at the ocelli. The 

 hind -margin of the vertex obtuse-angular. The longest inter- 

 val between the eyes on the vertex is a little sh orter than 

 the third joint of the flagellnm. The interval between the 

 posterior ocelli as long as the distance from the eyes. The 

 second joint of the flagellnm abont a fonrth longer than the 

 third one and a little longer than the scapus. 



The pronotum strongly convex much longer than the 

 half of the breadth. The hind-margin strongly arcuate. The 

 median segment much broader than long, strongly convex 

 behind. The protuberance before the stigma very low\ 



The body impunctate. 



The second cubital cell smaller than the third one; the 

 anterior margin of the second a little longer than the 

 third one. 



The anterior tarsi not ciliated on the outside. The legs 

 very spined. The longest spur on the two posterior pair of 

 tibia about as long as the half metatarsus. The claws dee- 

 ply bind. 



Length 21 mm. Exp. 35 mm. 



A single female from Itoki ( 10 /2 1891). 



