l8 Cameron, Hymenoptera Orientalia. 



the antennae are more slender and longer ; the fore tarsi 

 longer compared with the tibiae, with the base of the tarsi 

 more sharply incised ; the head is more sharply oblique 

 behind the eyes ; the clypeus roundly convex, with the 

 apex oblique ; the labrum shorter than the clypeus, its 

 apex bluntly rounded, and the fore tibiae are distinctly 

 narrowed at the base. 



This genus also comes near to Ceratocryphis described 

 in this paper, it having the same form of thorax and 

 abdomen, but differs in the much larger areolet, in the 

 smooth median segment, which has the spiracles less 

 elongated, in the shorter petiole, which has not the post- 

 petiole so distinctly narrowed from the rest of it ; the 

 antennae are more slender, with the third joint longer 

 compared with the fourth ; the metathorax is shorter and 

 more rounded at the apex. The transverse median 

 nervure is interstitial. The species have a considerable 

 resemblance to Heterocryptus, which may be distinguished 

 by the smaller, round metathoracic spiracles. 



Etha .STRIATIFRONS, Sp. iiov. 



Nigra; amiulo antetinaruju, n7'e, linen pronoti, sattello, 

 apiceque metanoti late flavis ; pedibiis pallide fulvis ; alis 

 hyalinis, stigntate testaceo. ? , 



Long. 1 5 ; tenebra 4 mm. 



Antennae not quite so long as the body ; filiform, 

 slightly shorter than the body ; the scape beneath and 

 the seventh to twelfth joints white. Head black ; the 

 face, clypeus (except the apex), labrum, mandibles (except 

 the teeth), the upper inner orbits narrowly, and the lower 

 outer broadly, yellow. The face obscurely striated ; the 

 front, except near the antennae, irregularly striated, 

 somewhat obliquely above, transversely below, the vertex 



