121 



(1) — The band on first abdominal segment dilated laterally the oblique 

 lower part of the elypens longer than the upper part; the second 

 abdominal segment longer than its width at the apex, trichionolus. 

 (2) — The band on the second abdominal segment not dilated backwards 

 laterally, the oblique lower part of clyj)eus not longer than the 

 ui)per; the second alidominal segment not longer than its width 

 at the apex orinsbyensis. 



Black, the head and thorax densely covered with long pale pubescence; 

 the clypcus, a somewhat triangular spot over the antennae, a short line 

 opposite the base of the antennae, mandibles except the teeth, a short 

 line behind the top of the eyes, a line not mutdi narrowed in the middle 

 on the apex of the pronotum, the outer side of the tegulae broadly, two 

 broad transverse narks on the apex of the scutellum, and broad bands 

 on the apices of the abdominal segments, not much dilated laterally, pale 

 yellow. Legs pale yellow, the four front coxae behind, their femora broad- 

 ly behind, trochanters, hind coxae, trochanters and femora to near the 

 apex, black. Antennal scape yellow, the flagellum reddish brown below. 

 Wings hyaline, tinged with fulvous, the radial cellule and its neighbor- 

 hood smoky. Male. 



Top of (dypeus transvers(>, with the sides rounded; the apical incision 

 liroadly rounded. Front and vertex (dosely, strongly punctured; the U{)per 

 ])art of the thorax is n ore strongly punctured as are also the sides, 

 where the punctures become mere or less confluent. The scutellum is 

 strongly, but not so closely punctured as the mesonotum; in its centre is 

 a deep longitudinal furrow. Postscutellum much more strongly rugosely 

 punctured; its apex is broadly rounded, not obliquely sloped and roundly 

 raised. Sides of n.edian segn.ent broadly rounded, the sides margined, the 

 uiiddle broa<lly but not much projecting; the apical slope is furrowed 

 down t!ie middle and closely obliquely striated. Pleurae rugosely punctu- 

 red; the upjter half of metapleurae closely, rugosely reticulated, the lo- 

 wer coarsely aciculated and m.ore or less finely striated. 



o4.>L' Ancistrocerus spilogaster sp. nov. 



Black; the dypeus, mandibles, except on the inner side a mark roun- 

 ded above, a short line on the outer orbits above the middle, the apex 

 of the pronotum including the spines, tegulae, except for a mark on the 

 middle on the inner side, two broad lines on the seiitellum, a broad line 

 on the postscutellum, and lines all round on the apices of the abdominal 

 segments, and an oblique mark on the sides of the second segment, le- 

 mon-yellow; the second ventral segment yellow, with two lougish black 

 lines on the sides and a shorter one in the centre; there is an oval mark, 

 broadest above on the mesopleurae below the tegulae. Legs of a clearer 

 yellow than the body; the coxae above, trochanters, a broad line reaching 

 close to the middle on the upper side of the four front femora and the 

 ])osterior all roujid to shortly beyond the middle. Antennal scape yellow 

 below; the underside of the flagellum and the hook lirownish red. Wings 



