18 Cameron, Hymenoptera Orientalia. 



Dolichusus CLAVIPES, Sp. 1IOV. (PL 16, f. 4). 



Niger ; alts hyalinis. 2 . Long. 9 mm. 



Hah. Barrackpore (Rothney). 

 Antennae filiform. Immediately above, and slightly 

 protruding over them is a large projection which, seen 

 from the side, is triangular ; above depressed, the sides 

 and apex distinctly raised ; the base not margined ; the 

 front and vertex shining, impunctate. Antennae sepa- 

 rated from the base of the clypeus, which is keeled 

 down the centre. Eyes reaching to the base of the 

 mandibles. Radial and cubital cellules not differing 

 from Pseudagenia. Prothorax somewhat longer than in 

 typical Pseudagenia. Mesonotum with two nearly com- 

 plete, deep parapsidal furrows ; the median segment 

 with distinct areae ; on the sides on the top of the apical 

 part is a small blunt tooth, and in the middle is a 

 much larger and more distinct one. At the base of the 

 third ventral segment is a transverse furrow ; the sheath 

 of the ovipositor largely projecting. Claws with one 

 tooth. 



Antennae filiform, the scape sparsely haired ; the 

 flagellum closely covered with a short pubescence. Head 

 shining, impunctate ; sparsely haired ; the outer orbits on 

 the lower side thickly covered with longish white hair ; 

 the clypeus, especially at the sides, and the base of the 

 mandibles with longer white hairs. Thorax shining ; pro- 

 and meso-notum thickly covered with fuscous hair ; the 

 hair on the median segment longer and thicker ; the apex 

 of the pronotum depressed and clearly separated from the 

 mesonotum. The parapsidal furrows do not quite reach 

 to the apex of the mesonotum. Apex of scutellum semi- 

 circular ; post-scutellum stoutly longitudinally striolated. 

 In the centre of the median segment are two keels which 

 converge a little at the apex of the flat part, and these 

 are united by a transverse keel ; the centre at the base 



