AMERICAN HYMKNOPTKRA. 20.') 



second is nearly twice iongei* than wide ; the apical segments are 

 curled up under the second, the wliole abdomen reminding one of 

 the Braconid genus Chelonus. 



The groiiji of Ancistrocerus nigi'o-hirsutus. 

 Large fulvo-rufous species,' marked with black and yellow, densely 

 haired, the front and vertex black in the centre, bordered by rufous 

 lines; the antenuie black, broadly rufous at the base ; clypeus end- 

 ing in two small teeth ; apex of second abdominal segment strongly 

 curled up. Metanotum angled laterally and margined round the 

 top (jiigrohirsntus) or broadly rounded laterally, without keels 

 above (tuberculiceps). A distinct group. 



" AiiciNtrocerus ? nigro-liirsutns sji. nov. 



Length to eud of second abdominal segment 13 mm. 



Black, densely covered with long black pubescence; the clypeus, apex of first 

 abdominal segment narrowly, alujost the apical half of the second and the whole 

 of the others pale lemon-yellow ; red are a broad line on the inner eye orbits 

 commencing at the clypeus, extending above to behind the ocelli, where they 

 almost unite behind; the outer orbits broadly, the line gradually narrowed 

 above and below, above extending on to the hinder edge of the vertex, the pro- 

 thorax broadly above, a small mark on the mesonotum beiiind the middle, the 

 greater part of the scutellums, a mark twice longer than wide and of equal 

 width, a mark on the outerside of the base of the metanotum, a broad band on 

 the first abdominal segment between the broad black base and the narrow yel- 

 low apex, and the centre of the second segment, the liase having a narrow black 

 band. Basal two or three joints of the antennse red. Legs rufous; the coxa>, 

 trochanters and base of femora before and behind black. Wings fuscous-viola- 

 ceous, the l)ase broadly fulvous; the costa and stigma dark testaceous. 9 • 



Clypeus, if anything, broader than long, gradually, obliquely narrowed from 

 the eyes to the apex, which ends in two shining blunt teeth ; strongly jiuncturtd 

 and covered with black hairs. Front and vertex strongly, closely punctured ; 

 there is a fiat depression behind the hinder ocelli; behind them are two small 

 shining tubercles. The bead is more densely covered with black hair than the 

 thorax. Thorax strongly punctured ; its base transverse, the lateral angles 

 slightly projecting. There is a narrow furrow or impressed line down the mid- 

 dle of the scutellum. Postscutellum broadly roundly narrowed behinii : the 

 apical slope smooth. Base of metanotum behind the keel closely punctured, the 

 rest weakly punctured, striated towards the apex ; there aie two rounded keels 

 on the top of metanotum ; there is a smooth shining line down the centre. First 

 abdominal segment cup-shaped; the apex more strongly punctured than the 

 rest, with the apical margin curled up slightly ; the apex of the .second is strongly 

 reflexed ; the part behind the margin is broadly depressed, the part behind the 

 depression being more distinctly and broadly raised on either side of the middle 

 than elsewhere. The second segment is distinctly longer than wide; below, at 

 the base, it projects distinctly below the first; the punctuation on the third and 

 following segments is close and strong, but becomes weaker towards the apex. 



TBANB. AM. ENT. SOC. XXXIV. JULY, 1908. 



