82 



Cameron, Hymenoptera Orientalia. 



testaceous. Wings hyaline, the costa and nervures black, 

 the latter paler towards the apex of the wing ; the second 

 cubital cellule is much narrowed towards the top, the 

 space there bounded by the transverse cubital nervures 

 being less than that bounded by the first recurrent and 

 the first transverse cubital nervure ; the second recurrent 

 nervure is almost interstitial nervure. Abdomen shining, 

 impunctate ; sparsely covered towards the apex with a 

 silvery pile; the apical segments at the apices testaceous. 



Parapison was erected by Smith {Trans. Ent. Soc, 

 1869, p. 298) for those species, otherwise agreeing with 

 Pison, which have only two transverse cubital nervures. 

 Kohl (Die Gattungen und Arten der Larriden, Verh. z.-b. 

 Ges. Wien, xxxiv.) regards it as only a section of Pison. 



Pison striolatum, sp. nov. 



Nigrum; facie argenteo-pilosa; alis hyalinis. 2. Long. 

 8 mm. 



Hab. Mussouri (Rothney). 



Has the typical neuration of Pison as figured by Kohl, 

 (Verh. z.-b. Ges. Wien., xxxiv., t. 8, f. 1 ,) i.e., the recurrent 

 nervures are both interstitial. 



Head in front opaque, coarsely rugose, behind the 

 ocelli the vertex more shining, and with the punctures 

 more distinct and much more widely separated ; below 

 the centre of the eye incision thickly covered with silvery 

 pubescence ; the apex of the clypeus gradually brought 

 to a sharp point. Thorax black ; sparsely covered with 

 fuscous, the median segment with longer white hairs ; 

 the sides with oblique, the centre with curved striae ; the 

 base with a short straight keel at the base ; the apex is 

 broadly depressed. Pleurae strongly punctured ; a wide 

 longitudinal furrow on the mesopleura ; the metapleurae 

 smooth ; covered sparsely with long hair. Tibiae and 

 tarsi thickly covered with white pubescence, which gives 



