Hymenoptera. 259 



pleurae closely, irregularly, strongly, obliquely striated. Abdomen 

 smooth ; the epipygium at the apex transverse, the hypopygium 

 rounded. Radial cellule as long as the space bounded by the 1st 

 and 3rd transverse cubital nervures. Male. 



Length 12-13 mm. 



February. 



This species agrees closely with A. hoops, yN\\\c\\ may be known 

 from it by the much more strongly reticulated metanotum, the 

 transverse keels being distinct and form, with the longitudinal 

 ones, more or less regular areae ; the apical slope is more regularly 

 reticulated, the metapleurae much more regularly and strongly 

 reticulated, the wings not clear hyaline, and the radial cellule is 

 clearly shorter than the space bounded by the 1st and 3rd trans- 

 verse cubital nervures. 



Orahro erythrotoma, sp. nov. 



Black, the basal ") joints of the flagellum, pronotum broadly 

 behind, tubercles, tegulaj, mandibles except at the apex and apical 

 segment of the abdomen, red ; the antennal scape, post-scutellum, 

 a mark on the 1st abdominal segment commencing near the 

 middle, dilated more broadly inwardly at the apex, a large mark, 

 3 times broader than long, on the 3rd, and the apical half of the 

 .5th, yellow. Two front legs i"ed, their coxa? black ; middle legs 

 red, the coxae, base of trochanters, femora to near the apex above 

 and the tarsi black, the trochanters yellow below ; hind legs black, 

 the tibiae dark red, the trochanters yellow below. Wings hyaline 

 the nervures and stigma black. Female. 



Length 10 mm. 



Face and clypeus thickly covered with silver}^ pubescence 

 apex of clypeus bluntly, shortly trituberculate in the middle. 

 Mandibles bidentate, the upper tooth longer, sharper, and not so 

 broad as the lower. Front and vertex closely punctured, the 

 former covered with golden pubescence. Mesonotum opaque, 

 alutaceous, the scutellum more shining, closely, but not stronglj- 

 punctured, Metanotal area shining, aciculated, the centre with 

 2 keels ; the space between with transverse keels, all clearh- 

 separated: the rest is minutely punctured, and thickly covered with 

 white hair. Pleurae smooth. Basal segm.ent of abdomen about 



