264 Albany Museum Records. 



long, slightly incised in the middle below and dilated aljove, a 

 line on the lower part of the eye incision, a small line on the 

 outer orbits above, a small irregular mark on the sides of the 

 scutellum near the apex : a line on the apex of the 1st abdominal 

 segment, the line largely dilated backwards at the sides and the 

 apex of the 2nd segment more broadly, yellow ; the apices of the 

 other segments brownish. Four front legs yellow, their coxse and 

 trochanters black ; the tarsi and apex of tibiae dark rufous ; hind 

 femora for the greater part l)lack ; tibiae yellow, their apex and 

 the tarsi dark rufous. Antennae blackish above, the scape below 

 yellow, the tiagelluni brownish. There is a narrow rufous line on 

 the edge of the pronotum ; the tegulse and tubercles rufous. 

 Wings fuscous-violaceous ; the nervures and stigma black. Male. 



Length to end of 2nd abdominal segment 8 mm. 



Clypeus as long as it is wide in the centre ; coarsely and 

 closely punctured, its apex depressed and with a shallow incision. 

 Mandibles rufous, tinged with yellow at the base, the teeth black. 

 Head closely, rugosely punctured, a longitudinal depression behind 

 the ocelli. Thorax, except the metapleurae, coarsely, rugosely 

 punctured. Sides of post-scutellum projecting into stout teeth at 

 the base. Abdominal segments closely punctured. The 2nd 

 cubital cellule much narrowed in front. 



This species closely resembles O. Schonlandi; the two may be 

 separated thus : 



A continuous curved line on tlie top of the clypeus ; post-scutellar 

 spines testaceous. 



Schonlandi. 



Two sjiots on the top of the clypeus ; post-scutellar spines 

 black. 



melanudontus. 



Odynerus dunhrodyensis, sp. nov. 



Black, the upper and lower third of the clypeus, the sides in 

 the middle narrowly, a small mark, obli(iuely narrowed above the 

 apex transverse, above the antennae, a narrow, roundly curved line 

 on the centre of the apex of the pronotum, a curved mark near the 

 inner edge of the tegulas, the apex of the 1st abominal segment 

 narrowly above, and of the 2nd more broadly all round, yellow ; a 



