BY ROWLAND E. TURNER. 183 



prominence between antennae deeply emarginate, pubescence on 

 head long, whitish on front and sides, thinner and cinereous on 

 vertex. Thorax finely and closely punctured, with thin cinereous 

 pubescence; pronotum as broad as head; median segment short, 

 depressed and oblique, with long, thin whitish pubescence. 

 Abdomen fusiform, shining, finely punctured; a deeply impressed 

 transverse line near base of segments 2-5; apical segment rugose, 

 with three semicircular striae at apex. Abdomen beneath 

 strongly punctured, a fringe of short whitish pubescence on 

 apical margin of the segments. Hypopygium carinate and 

 punctured beneath, transversely striate above; a blunt projection 

 on each side near base, thence produced in an elongate, triangular 

 form, ending in a long, slender, faintly recurved spine. Opaque 

 black; abdomen shining; mandibles, except at apex, and anterior 

 margin of clypeus yellow. Tibiae and tarsi fuscous. Wings 

 pale fusco-hyaline, nervures black. Length 24 mm. 



£. Head convex, rounded, mandibles very blunt; clypeus 

 transverse, with a median carina. The whole head sparsely 

 punctured, with a short, median, longitudinal sulcus on front. 

 Pronotum a little narrower than head, broader than long, very 

 finely reticulate. Mesothorax and median segment sparsely 

 punctured; median segment short, obliquely truncate posteriorly. 

 First abdominal segment vertically truncate at base, with a 

 longitudinal, median sulcus on surface of truncation, apical margin 

 raised, with three or four fine transverse carinae just before apex. 

 Second segment with about twelve more or less irregular trans- 

 verse carinae, those near apex rather stronger than those at base. 

 Third, fourth and fifth segments smooth at base, sparsely punc- 

 tured at apex. Pygidium about twice as long as broad, vertical, 

 sides nearly parallel, broadly rounded at apex, with a strong 

 spine on each side near apex forming a continuation of lateral 

 margins. Black; front and posterior margin of head, a broad 

 band on first abdominal segment above the truncation, almost 

 touching apical margin at sides, sides of second segment, apical 

 half of three following segments and extreme base of pygidium 

 yellow; clypeus, mandibles, antennae, a broad band on vertex 



