64 Mr. P. Cameron on new Fossorial Ilymenoptera 



are deep ; opposite the tegulas is a smooth irregular longiah 

 line ; the median segment closely reticulated, thickly covered 

 with silky pubescence ; the central area is dilated at the base, 

 its sides oblique. Scutellum pyramidal, coarsely rugosely 

 punctured, the centre raised, smooth, shining, the base 

 covered with long black, the apex with longer fuscous, 

 hair. Postscutellum smooth, bordered laterally with stout 

 keels. MesopleursB punctured in the middle and covered 

 thickly with silvery pubescence ; on the lower side of the 

 base is a club-shaped keel. Metapleuiffi reticulated, smooth 

 at the base. Wings fuscous violaceous, paler at the base ; 

 the second cubital cellule is longer above and below than the 

 third, the second and third transverse cubital nervures are 

 sharply angled above the middle ; the recurrent nervures near 

 the base of the apical third of the cellules. Legs thickly 

 covered with long white hair. Petiole strongly punctured ; 

 the basal teeth stout, the sides immediately in front of them 

 project ; the ventral keel is roundly and uniformly incised in 

 the middle. The pygidial area is smooth in the middle at 

 the base, the apex is depressed and obscure rufous in the 

 middle ; the hypopygium is stoutly obliquely keeled late- 

 rally ; the penultimate segment is keeled. The pubescence 

 on the basal segments is white, on the middle long and golden, 

 on the apical black. 



b. Scutellum not distinctly conical ; the fore wings more or less hyaline 

 at the base. 



Mutilla lenttj sp. n. 



Nigra, abdomine ferrugineo, apice basique petioli late nigris ; alis 



fusco-violaceis, basi hyalinis. <S • 

 Long. 10 mm. 



Antennae longish, the scape above covered with longish 

 white hair, below much more thickly with short pale pubes- 

 cence ; the flagellum almost glabrous, the third and fourth 

 joints equal in length. Front and vertex shining, rather 

 strongly punctured, the vertex sparsely covered with fuscous 

 liair ; the front with a broad band of silvery pubescence. 

 Clypeus shining, its apex roundly projecting, the inner side 

 shallowly but distinctly depressed, and finely transversely 

 striated at the apex. Mandibles finely punctured at the 

 base and sparsely covered with long silvery hair ; the tooth 

 on the lower side large, longer than broad, conical. Pro- and 

 mesonotum shining, strongly punctured ; the pronotuni 

 thickly covered with long fuscous, the mesonotum more 



