I04 Cameron, Hyvicnoptera Orioitixlia. 



and a somewhat triangular oblique mark in front 

 of the hinder cox<x', yellow. Mesonotum distinct! }% but 

 not closely, punctured; there are no furrows. Scutellum 

 roundly convex, yellow, black round the edges, more 

 sparsely punctured than the mesonotum. Post-scutcllum 

 impunctate, bare, obliquely widened towards the apex ; 

 its base distinctly separated from the scutellum. Median 

 segment with a gradually rounded slope, closeh', rather 

 strongly and uniformly punctured, and thickly covered 

 with short white hair. PlcuriU closely punctured, the base 

 of the proplcur;\.', and the apex of the mesopleura^ 

 on the lower half, smooth and impunctate. Meso- 

 sternum closely punctured, the central furrow shallow. 

 The four front legs are pale rufo-fulvous ; the coxa^ and 

 trochanters are pallid yellow ; the hinder cox^e, trochan- 

 ters and femora, bright rufous ; the tibia? fuscous, darker 

 above, white at the base ; the tarsi black, the meta- 

 tarsus white to near the middle. Wings short, as long 

 as the abdomen; hyaline, slightly smoky at the base; 

 the areolet triangular, the nervures uniting at the top, 

 not appendiculate ; the recurrent nervure is received 

 shortly in front of the second transverse cubital, almost 

 interstitial ; the transverse median nervure is received 

 shortly in front of the transverse basal. Abdomen smooth 

 and shining ; the basal half of the petiole, the base of the 

 second, third and fourth, and the apices of the two apical 

 segments, pale yellow. 



The Tryphonidcs are very numerous in the northern 

 parts of the Pakvarctic and probably also in the Nearctic 

 zoological regions, but are little known outside them. 

 A large number are known to be parasites on Toithredinidcc. 



Mesoleptus KIIASIANUS, Sp. nov. 

 Niger; abdonmie rufo^pctiolo nigro; pcdibus anterioribus 



