SOME NEW GENRKA AND SPECIES OF HYMENOPTERA. 313 



tibife and tarsi blackish ; the apex of the tibiae rufous. The four 

 hinder femora are red, blackish at the extreme apex ; the trochanters, 

 tibiae, and tarsi black ; the end joint of the tarsi with a heart-shaped 

 dilatation, which reaches to the middle of the joints ; the claws bifid. 

 Wings fuscous-violaceous ; the appendicular cellule is open ; the apex 

 of the radial nervure is united to the nervure bordering the radial 

 cellule, not received in front of it as in A. latifrons ; the two abscissa 

 of the radius are equal in length ; the first recurrent nervure is 

 roundly curved from top to bottom, and is received shortly beyond the 

 middle ; the second has three slight curves, and is received before the 

 middle of the cellule. The cubital nervure in the hinder wings is 

 interstitial. Abdomen smooth and shining, blue ; the apices of the 

 segments piceous. The narrowed part of the petiole as long as the 

 widened apex ; the second segment is as long as the succeeding united. 



Allied to A. latijrons. 



Trypoxylon gkniculatum, sp. nov. 

 Nigrum, trochanteribus tarsisque anterioribus, tibiis auticis basique 

 tibiarum posticarum testaceis ; alls hyalinis, stigmate nigro; abdo- 

 minis medio rufo. $ . Long. 13 mm. 



Hab. Khasia (Coll. Kothney). 



Antenna black, the second joint rufous beneath ; the scape and 

 flagellum almost bare. The face and clypeus thickly covered with 

 silvery pubescence ; the front and vertex almost bare, finely punctured 

 and opaque ; below the ocelli is a shallow, but distinct, furrow; below 

 this furrow is a stout keel, with oblique sides. Mandibles rufous ; the 

 palpi pale testaceous. Mesonotum shining, plumbeous ; distinctly, 

 but not strongly, punctured all over. The middle depression on the 

 base of the median segment is wide, shallow, narrowed at the base, 

 and finely transversely striated ; the lateral furrows are wide, slightly 

 narrower and deeper than the middle one, and striated like it ; the 

 apex of the segment has an oblique slope ; its furrow is deep, with 

 oblique sides ; its apical half transversely striated. Pleuraa smooth 

 and shining ; the tubercles have a thick hair fringe behind ; the 

 furrow on the base of the mesopleurte deep ; the central fovea large, 

 round. Mesosternum closely and finely punctured ; the central furrow 

 wide. Legs black ; the anterior tibiae and tarsi, all the trochanters 

 and the four posterior knees, rufo-testaceous. Wings clear hyaline ; 

 the stigma and nervures black. Abdomen black ; the apices and 

 sides of the second and third segments rufous ; the petiole is slightly 

 longer than the second and third segments united ; its base is distinctly 

 channelled above ; its apical fourth is dilated. 



Trypoxylon trochanteratum, sp. nov. 

 Nigrum, abdomine rufo, petiole nigro ; alls hyalinis, stigmate 

 nervisque fuscis. $ . Long. 12 mm. 



Hah. Khasia Hills (Coll. Rothney). 



Antennae black, covered with a short pile. The face, the eye 

 incision, and clypeus thickly covered with silvery pubescence ; the 

 clypeus projecting broadly in the middle and at the apex, where it is 



ENTOM. — DECEMBER, 1902. 2 C 



