P. CAMERON. HYMENOPTERA. 213 



striated, with 2 not very distinct, converging towards the apex, furrows in the centre ; the 

 rest, from the keel, closely transversely striated, more strongly in the middle than on the 

 sides; the metapleurae closely, finely reticulated; the apex has a broadly rounded slope; the 

 spiracles broadly oval, hardly twice longer than wide. Antennal scape brownish beneath. 

 Clypeus separated from the face by a fine keeled furrow. 



4. Xanthocr yptus nigricornis sp. n. 



Bivak Island, September. 



Luteous, the flagellum of antennae and the mandibular teeth black, the 2nd and following 

 segments of the abdomen infuscated ; wings hyaline, the stigma and nervures black, the areolet 

 small, square, receiving the récurrent nervure near the middle, the transverse médian nervure 

 distinctly behind the transverse basai. Q. 



Length 10 m. m. ; terebra 4 m. m. 



Smooth and shining, the sides of the face and the clypeus pallid yellow. The 2 metanotal 

 keels are clearly defined, the apical being the stronger; the spiracles are 4 times longer than 

 wide; the metanotum is entirely smooth. 



5. Xanthocryptus tibialis sp. n. 



Lorentz River, September. 



Luteous, the antennae, except the scape beneath, which is rufous, the clypeus, front, 

 vertex, the hinder part of the head to the keel on the occiput, the apical two thirds of the 

 hind tibiae and the hind tarsi, black ; the sides of the clypeus rufous in front, the rufous part 

 becoming gradually widened, so that the black central part becomes gradually narrowed in 

 front; wings hyaline, the stigma testaceous, the nervures blackish, the areolet minute, square, 

 receiving the récurrent nervure close to the middle; the transverse médian nervure received 

 very shortly behind the transverse basai ; the transverse médian nervure in hind wings broken 

 distinctly below the middle, near the top of the lower third. cf. 



Length 8 m. m. . 



Smooth and shining; the space between the 2 metanotal keels strongly, closely longi- 

 tudinally striated ; the apical slope is more finely and more irregularly and more obliquely 

 striated; the 2 n d keel is stronger than the i st ; the space bordering the latéral keel is stoutly 

 transversely striated. Metanotal spiracles oval, about two-and a half times longer than wide. 

 Face smooth, irregularly striated along the raised central part ; the clypeus very smooth and 

 shining. The space at the sides of the scutellums is closely strongly striated. Antennae longer 

 than the body, the apical joints slightly nodose, shortly closely pilose. 



Ophioninae. 



Enicospilus, Steph. 

 1. Enicospilus ancilospihis sp. n. 



Bivak Island, September. 



Black, the basai 2 abdominal segments rufo-testaceous, the legs pallid testaceous, the 



coxae and somewhat more than the apical three-fourths of the hinder femora black; wings 



Nova Guinea. IX. Zoologie. 28 



