Mr. Ik. Vj. ruriier o« Fossor'ud Ilymenoptera. 417 



tliorax closely and rather stronj^^ly punctured ; median seg- 

 ment very coarsely reticulate, tbe surface of the [)Osterior 

 truncation transversely striato-punctate, with a small trian- 

 gular s[)iiie on each side below the level of the dorsal surfa(;e. 

 Ahdomeu very finely and ehjsely j)unctured, the second 

 ventral segment fiat; pygiilial area almost smooth. Hind 

 tihiie with al)out nine spmes on the outer margin. Cubitus 

 of the hind wing originating far beyoud the transverse 

 median nervure ; seeonil abscissa of the radius more than 

 half as long as the first ; second recurrent nervure received 

 just before the apex of the second cubital cell ; fiist at the 

 apex of the first cubital cell, almost interstitial witfi the 

 first transverse cubital nervure ; the second cubital cell 

 petiolate, triangular, the iirst and second transverse cubital 

 iiervures of equal length. Clypeus and face clothed with 

 silver pubescence. 



Hub. Pakasa, N. Rhodesia (SUver/ock). 



A male from Nyasaland, west of Domira Bay, ])robably 

 belonging to this species, differs in having the median seg- 

 ment striated, not reticulate, and the seventh dorsal segment 

 rather broadly rounded at the apex. 



'I'his species ditlcrs from typical Paranysson in the absence 

 of the spine on the hind coxa; and in the presence of a small 

 spine on the median segment. In the form of the head it 

 closely resembles Puruiu/sson. 



Nysson (jreyory'i, sp. n- 



$ . Nigra ; antennis, prothoraco, pedibus, tegulisque ferrugineo- 

 brunncis; clypeo, segmento dorsali priiuo macula magua utriiique, 

 secundo fascia apicali subinterrupta, 3-G totis llavo-ochraceis ; 

 alis hyalinis, veiiis I'uscis. 



Long, y mm. 



? . Eyes very strongly convergent towards the clypeus, 

 the inner margin sinuate; posterior ocelli a little further 

 from the eyes than from each other, and more than half as 

 far again from each other as from the anterior ocellus. 

 Antennse inserted a little further from each other than from 

 the eyes; first joint of the Hagellum globular, second dis- 

 tinctly shorter than the third or fourth, all the joints except 

 the first longer than broad. A moderately elevated longi- 

 tudinal carina between the antennae, the front higher than 

 the base of the clypeus and narrowly truncated at the apical 

 end of the carina. Head rather distantly and not coarsely 

 punctured ; thorax more closely and coarsely punctured ; 

 pronotum rounded at the anterior angles; scutelluni not 



