12 HYMENOPTERA FROM BORNEO. 



segment Hat, the centre clearly separated, of equal width, closely 

 longitudinally striated, the striae more distinct and more widely 

 separated at the apex ; the sides become slightly, gradually 

 wider towards the apex and are closely finely striated ; the 2nd, 

 3rd and 4th, segments are closely, distinctly longitudinally 

 striated, the striae becoming gradually weaker, and have oblique 

 furrows on the sides at the base ; the 2nd is raised in the mid- 

 dle, without an area. 



The frontal plate is smaller, much less prominent than in 

 C.fuscipennis, Cam. ; and G. ruficcps, Cam. ; it differs, further, 

 in having the abdomen flatter, largely tinged with rufous, the 

 sheaths of the ovipositor are broader and more densely pilose. 



B.— On new Ichneumonidae. 



Hytophatnus, gen. nov. 



Head very little developed behind the eyes, the occiput 

 broadly rounded inwardly ; the face and clypeus flat, not sepa- 

 rated by a suture, the apex of the latter broadly rounded. 

 Mandibles not broad, the upper tooth long, sharp -pointed, the 

 sub-apical short, turned inwardly. Scutellum flat, longer than 

 wide, the sides not keeled. Metanotum short, the apex with 

 an oblique, straight slope ; the basal slope without clearly 

 defined area?, the areola only separated from the lateral by 

 being rough, instead of smooth and shining ; the apical 3 are 

 separated only by the fact that the centre is depressed ; the only 

 distinct keel on the segment is one round the apical slope and 

 one round the top of the pleurae ; the former is dilated into a 

 blunt tooth near the middle ; there is a broad keel over the meta- 

 sternum. Post-petiole distinctly separated, depressed in the 

 middle at the base ; the gastracceli broad, united by a deep 

 depression. Legs (especially the hinder) stout ; the hind 

 coxae larger and stouter than usual. Antennae longer than the 

 body> tapering towards the apex, not serrate. Areolet 5- 

 angled ; disco -cubital nervure unbroken ; the transverse median 

 nervure received shortly beyond the transverse basal. 



The characteristics of this genus are the unseparated, 

 rounded at the apex, clypeus, short temples, longish malar 



Jour, Straits Branch, 



