326 Mr. R. E. Turner on Fossorial Hymenoptera. 



? . Clypeu3 very widely arcuately deflexed towards the 

 apex, the deflexed portion smooth and shining, the apieal 

 margin subtruncate. Eyes separated on the vertex by a 

 distance equal to about four times the length of the second 

 joint of the flagellum ; head YQvy distinctly but not very 

 closely punctured ; a smooth convex area between the ante- 

 rior ocellus and the base of the antennas. Thorax rather 

 more strongly punctured than the head, the individual punc- 

 tures large and clearly separated. Median segment scarcely 

 more than half as long as the mesonotuni ; the dorsal surface 

 margined by carinse at the sides and apex, irregularly and 

 coarsely striate-reticulate ; the sides of the segment longitu- 

 dinally striated, the posterior slope rugose. Abdomen closely 

 and linely punctured ; pygidial area shining, sparsely punc- 

 tured, very narrowly truncate at the apex. Comb of the 

 fore tarsi long and slender. Radial cell short, very broadly 

 obliquely truncate at the apex ; second and third abscissae 

 of the radius subequal, each at least half as long again as the 

 fourth. 



cJ . Seventh dorsal segment broadly rounded at the apex ; 

 eighth ventral segment emargiuate, testaceous, the apical 

 angles produced into short spines. Eyes separated on the 

 vertex by a distance not exceeding half the length of the 

 second joint of the tligellum. 



Hdb. N.E. Rhodesia, Mid Luangwa Valley, about 

 2000 ft. {8. A. Neave), July and August; Nyasaland, be- 

 tween Ft. Jameson and Dowa, 4000 ft. [S. A. Neave), 

 October. 



The sexual divergence in the distance between the eyes 

 on the vertex is greater than in any Mediterranean species 

 of the genus. 



Subfamily Trypoxtloninje. 



Pison papuanumj Schulz. 



Pison papnanum, Schulz, Berlin. Ent. Zeit. xlix. p. 217 (1904). 



Fison moroius, Sm. Joiiin. Linn. Soc, Zool. viii. p. 85 (186-1). $ (nee 



Sm. 1856). 

 Pison co7istrictum, Tm-n. Ann. & Mag. Nat. Hist. (8) ix. p. 201 (1912). 



Pison constrictnm, Turn. Proc. Zool. Soc. London, p. 627 (1916). 



I had overlooked the name papuanum in my recent paper 

 on Pison. 



