224 Mr. P. Cameron on Twelve New Genera and 



longitudinally striated. Median segment with the central three 

 areaj smooth ; the basal central wider than long, narrowed towards 

 the apex ; the basal lateral bear shallow, widely separated punctures ; 

 the posterior median strongly transversely striated ; the spiracular 

 at and behind the spiracles, almost inipunctate, the rest obliquely 

 striated, the striaj becoming stronger and more widely separated 

 towards the apex, especially behind the teeth, which are large, 

 keeled on the under-side, and united with the lateral keels. Pro- 

 pleura^, finely punctured above. Mesopleura^ yellow, black above, 

 under the tubercles and halfway down the middle, the lower part of 

 the base behind the keel black ; the lower part is strongly longi- 

 tudinally striated, the upper striaj being much shorter than the 

 lower. Metapleurse below the keel black, except at the base above, 

 and the apex obliquely on the lower-side ; the yellow part is narrow 

 at the top, becoming wider at the bottom. Legs dark rufous ; the 

 femora darker ; the four front coxas and trochanters yellowish-white ; 

 the hinder broadly dork rufous at the base in front ; behind yellow, 

 except for a large mark on the base below ; the basal joint of the 

 hinder trochanters dark rufous ; the hinder tarsi thickly spined. 

 Petiole black, its ajiex yellow ; the 2nd and 3rd segments black, 

 inipunctate ; their apices broadly rufous ; the other segments for 

 the greater part dark rufous, their apices yellowish. The ovipositor 

 sheaths pilose, largely projecting, rufous in the middle. 



Sycaonia, gen. nov. 

 Mandibles with one short upper tooth, distinctly projecting be- 

 yond the lower, which hardly projects and is bluntly rounded. 

 Face distinctly and broadly projecting in the middle, the projecting 

 part bordered laterally by a shallow furrow, which is wider and 

 more distinct below. Clypeus not separated from the face. Occiput 

 margined. Antenna} stout, thickened beyond the middle. Scutellum 

 flat, only slightly roundly convex ; its sides not margined. Post- 

 scutellum with a depression on either side at the base and bordered 

 on the outer-side by a sharp keel. Median segment regularly 

 areolated ; its sides with a blunt tooth ; its spiracles curved, linear ; 

 areola separated by its own length from the base of the segment ; 

 it is longer than broad, slightly narrowed towards the apex. Areolet 

 5-angled, narrowed above. Legs stout, the tarsi spinose. Abdomen 

 with seven segments ; the last large all round ; if anything longer 

 than the penultimate ; its apex somewhat bluntly pointed. 



Sycaonia mfo-facies, sp. nov. 



Black ; the orbits all round narrowly, the apex of the petiole and 

 a mark, about three times broader than long and rounded on the 



