Hymenoptera Orientalis. 277 



abdominal segments 1 — 4, white ; legs red, the coxae, 

 trochanters, four posterior tarsi and the four posterior tibiae 

 behind, black ; wings clear hyaline. Eyes wide apart, 

 straight, a little diverging beneath. Antennae dull rufous, 

 the scape more or less fuscous ; the third joint a very little 

 longer than the fourth. Head closely punctured, from a 

 little below the ocelli closely covered with pale silvery hair. 

 Ocelli in a curve, the posterior separated from the eyes by 

 the length of the second, and from each other by the length 

 of the second and third antennal joints united. Apexofcly- 

 peus transverse ; mandibles obscure rufous. Thorax shining, 

 punctured, the pleurae more closely than the mesonotum, 

 sparsely covered with a short silvery pubescence ; the oblique 

 furrow on the mesopleurae broad and shallow. Scutellum 

 convex, sparsely covered with large round punctures, the 

 centre keeled, but not strongly, the apex incised in the middle. 

 The lateral plates large, curved laterally and ending in a 

 stout, triangular tooth ; the central lamina broader than 

 long, the sides rounded, narrowed at base and apex, the 

 apex with a broad, shallow incision. Abdomen more finely 

 and closely punctured than the thorax ; the ventral surface 

 with the punctuation much sparser ; the segments at the 

 apex narrowly edged with dirty white. Tibiae and tarsi 

 bearing a silvery white pubescence ; the tibial and tarsal 

 spines white. The recurrent nervure is received almost in 

 the centre of the radial cellule. Length nearly 9 mm. 



Most nearly related to O. squamosus ; but that species 

 may be known from it by the eyes being rounded, not 

 straight, and meeting much closer together, by the blackish 

 antennas, by the central lamina being rufous and longer 

 than broad (see PI. X., f. 24). 



OXYBELUS FLAVIPES, Sp nov. 



Head closely punctured, the face, cheeks and front 

 densely covered with golden pubescence ; the clypeus in 



