338 Mr. R. E. Turner on Fosson'al TTymenoptera. 



segment concave posteriorly, the lower angles rather widely 

 excised. Head and thorax very finely and shallowly punc- 

 tured, median segment and abdomen more closely and 

 strongly punctured. Abdomen a little stouter than in 

 S. tridens^ seventh ventral segment with a longitudinal 

 carina. Second cubital cell not petiolate, second abscissa of 

 the radius nearly half as long as the first. Hind wing as in 

 S. tridens. 



Hah. Sigiri, Ceylon [E. Coniber) ; March 1910. 



This belongs to the tridens group. It may be distin- 

 guished from tridens by the deeper incision at the angle of 

 tlie median segment, by the more robust build, by the 

 broadly rounded apical margin of the sixth ventral segment, 

 nnd by the distinctly narrower front. 



Stizus simillimus, Sm. 



Larra simillima, Sm. Journ. Proc. Linn. Soc, Zool. iii. p. 159 (1359). 



$(c?). 

 Stizus simillimus, Sm. Sitzungsb. Akad. Wiss. Wien, ci. p. 32 (1892). 

 Stizus magrettii, Ilaudl. Sitzungsb. Akad, Wiss. Wien, ci. p. 19 



(1892). 



I agree with Handlirsch that Smith has probably confused 

 two species in his description, and that his short description 

 of the male refers to anotlier species. But as the main 

 description is of the female, I thiidc his name should stand 

 for the present species, described by Handlirsch as magrettii. 



Stizus hcBmorrhoidaUs, Handl. 



Stizus h(Bmorrhoi(lalis, Hand). Yerh. zool.-bot. Ges. Wien, 1. p. 472 

 (1900). 



Hah. Bothaville and Algoa Bay {Braiois) ; Chirinda 

 Forest, Gazaland [Odendaal). 



Stizus ni/as(P, sp. n. 



(J . Very nearly related to the N. -African «?. discolor, 

 Handl., from which it differs in the finer puncturation of the 

 abdomen and in the less compressed angles of the median 

 segment. The ventral surface of the abdomen is entirely 

 unarmed, being without the minute tubercle characteristic of 

 discolor. In colour there is little difference, but nyasce has 

 the apical half of the scutellum yellow and the postscutellum 

 black, whereas in discolor both are entirely yellow ; the 

 colour is in all the markiiigs brighter and clearer in ni/asa' 

 than in discolor. In the female there is never any fji'ru- 



