6 Cameron, Hymenoptera Orientalia. 



by side near the middle. Head not developed behind 

 the eyes. Mandibles bidentate. Mesonotunn trilobate, 

 the sutures deep. Scutellum large, convex. Metathorax 

 near]}- as long as the pro- and mesothorax united ; the 

 apc.x with an oblique slope ; before the middle is a 

 transverse keel ; its spiracles large, linear, rounded at the 

 base and apex. Legs longish, slender ; the tarsi spinose ; 

 the claws sinnple. Wings reaching to the middle of the 

 abdomen ; the areolet smaller, about three times longer 

 than wide, the recurrent nervure is received shortly 

 beyond the middle, the transverse median behind the 

 transverse basal. Petiole long and slender, the apical 

 half distinctly, but not much, dilated ; its apex obliquely 

 depressed ; it is longer than the second segment, which 

 has an oblique depression on either side at the base ; the 

 spiracles are small and round, and are placed between 

 the middle and the apex. The apex of the abdomen is 

 straight up and down as in Pinipla, the ovipositor arising 

 from its lower side, received in a vertical groove or 

 cleft, and standing upwards above the dorsum of the 

 abdomen. The ventral surface has a central fold. 



The characteristic features of this genus are the front 

 with the two spines, the clypeus distincth- separated from 

 the face, the small, elongated areolet and the long 

 abdomen. The antennae are stouter and the metathoracic 

 spiracles are longer than in either Cryptus or Mesostenus. 



CeRATOCRVPTUS I5ITUI3ERCULATUS, Sp nov. 



Xtger; albo-niaailatiis ; viesonoto laevo; pedibus vjifis ; 

 coxis trocJianteribiisquc anterioribiis a/bis ; coxis posticis 

 nigyo-maculatis ; abdoviine quaui. thorace diiplo loiigiore ; 

 alls fiihw-Jiyalinis, siiginate nigra. ? . 



Long. 19 mm. ; terebra 1 1 mm. 



Antenna; black ; the scape in the middle above, and 



