272 Mr. Cameron on 



curved tooth ; metatarsus curved at the base beneath and 

 densely pilose, longer than all the other joints united. 

 Hypopygium curved, dilated at the base and armed there 

 with two stout, curved, sharp teeth. The recurrent nervure 

 received considerably before the middle of the radial cellule. 

 Length 7 — 8 mm. 



Crabro orientalis, sp. nov. 



Scape and second joint of the antennas clear straw 

 yellow ; the other joints black, fuscous beneath, covered 

 with a white microscopic pile ; the third joint a very little 

 longer than the fourth. Vertex opaque, finely and closely 

 rugose ; covered with a short fuscous-black pubescence ; 

 ocelli in a curve, the hinder separated by about the length 

 of the second and third antennal joints united from the 

 eyes, and by a slightly less distance from each other. Front 

 deeply excavated, margined at the top, closely covered 

 with a silvery pile ; clypeus slightly convex and with a fine 

 keel down the middle ; densely covered with golden pubes- 

 cence. Mandibles shining, clear yellow, black at the apex. 

 Thorax opaque, alutaceous. The furrow at the base of 

 scutellum crenulated ; scutellum longitudinally striolated 

 (at least on the black part), rounded behind; metanotum 

 coarsely longitudinally striolated. Median segment rugosely 

 punctured, irregularly obliquely striolated ; the centre 

 furrowed (the furrow at base narrow). Mesopleurae opaque, 

 alutaceous, the furrows crenulated ; metapleurse finely trans- 

 versely striated. Petiole fully three-fourths of the total 

 length of the abdomen, the apex nodose, opaque, the base 

 shining, finely punctured. Abdomen opaque, the apical 

 segment punctured. There is a squarish mark on either 

 side of the apex of the petiole ; a broad elongated mark on 

 the side of the second segment ; a small mark on the side 

 of the third, a broad band on either side of the fourth, 



