NEW GENERA AND SPECIES OF BRACONIDAE. 41 



furrow marking the line of separation nearer apical than basal 

 margin, 2nd segment with anterior angles separated by other 

 brown, curved, punctate furrows, and divided into three 

 scutiform areas by a broad median longitudinal groove which 

 divides a short distance from apical margin, the two branches 

 curving outwardly and joining the lateral furrows near base; 

 4th and following segments transverse, 1st, 3rd, 4th and oth 

 tergites with the apical margins polished, 6th and 7th tergites 

 also polished. Legs slender, the coxae and femora short and 

 stout, the former truncate, the latter flattened, especially the 

 hind femora, the tarsi a little longer than tibiae. Wings long 

 and slender, stigma lanceolate, radius arising before the 

 middle and reaching tip of wing, 1st abscissa less than half 

 the length of 2nd, 2nd cubital cell about 3 times as long as 

 wide, parallel-sided, recurrent nervure interstitial, nervellus 

 postfurcal, subdiseoidal joining discoidal near lower angle. 

 Radius in hind wing nearly effaced. 



Hab. Eoban, Java. 1 specimen. Collected by F. Muir. 

 Ischiogonus malayensis, n. sp. 



$ 8 mms. long. Head, pro thorax and mesothorax och- 

 raceous, metathorax and abdomen black, abdominal sternites 

 1 to 3 luteous, the color extending on to the dorsum narrowly 

 at the sides. 



Head, smooth, polished, cubical, rather convex, temples 

 rounded, eyes bulging slightly, front excavated, ocelli on 

 anterior margin of vertex, arranged in an isosceles triangle, 

 the anterior angle of which is obtuse, the lateral members a 

 little closer to each other than to the border of the eye, the 

 occipital margin about three times as far off; antennae placed 

 in large oval sockets close to the border of the eye, filiform, 

 joints 1 and 2 stout; face above clypeus transversely aciculate 

 and hairy; mandibles stout, short, curved and acutely pointed 

 at apex; cheeks less than one-half the width of postgenae. 

 Pronotum and pleurae concave medially, the concavity costate ; 

 mesonotum trilobed, the median lobe especially bulging, parap- 

 sidal furrows costate and indistinct beyond the middle, the 

 lateral lobes being separated by a broad, shallow bicarinated 

 depression or furrow, pleurae striate above, the posterior 

 margin marked by a costate furrow; disc of scutellum tri- 

 angulate, bif oveate basally and depressed at sides ; metanotum 

 and pleurae coarsely reticulately rugose, the notum biareolate 

 and smooth basally. Abdomen elongate ovate, 1st segment less 

 than twice as long as wide at apex, 2nd and 3rd solidly joined, 

 quadrate, 4th and following segments transverse, 1st segment 

 longitudinally bicarinate, the carina strongly raised at base; 

 between the carinae the surface is longitudinally striate, out- 

 side reticulately rugose, 2nd tergite and the broad furrow 

 separating 2nd and 3rd longitudinally striate, a narrow mar- 

 ginal area on the sides of both tergites finely striate through- 

 out and separated from the middle by an inconspicuous fur- 



R. A. Soc, No. 80, 1919 



