4 Cameron, Hymenoptera Orientalia. 



blackish at the apex ; the tarsi black, with the greater 

 part of their basal joint yellowish-testaceous at the base ; 

 they are all thickly covered with pale hairs ; the femora 

 are strongly punctured and have a purplish tinge. The 

 costa, stigma and nervures are rufo-testaceous. Abdomen 

 black, the apex with a violaceous tinge ; the basal two 

 segments, and the fourth more broadly, are lined with 

 yellow at the base ; the last segment is roundly depressed 

 at the base, where it is purple and almost smooth, not 

 rough like the rest of the segment ; the apex of the pen- 

 ultimate segment behind it is semicircularly incised, the 

 edge of the incision being acutely raised. The basal 

 ventral segments are smooth and shining, their apices and 

 central parts yellowish-testaceous ; the apical ventral 

 segments are coarsely punctured ; the spine is roughly 

 serrate below ; the sheaths of the ovipositor black, dark 

 ferruginous on the lower side, its sides coarsely, somewhat 

 obliquely, striated ; the top near the apex with some 

 short, stout, irregular teeth. 



Comes near to the East Indian T. Smithii Cam., but 

 that has the wings purplish-hyaline, with a hyaline spot 

 in the second brachial cellule and one in the middle of 

 the hinder wings ; the body blue-black, the thorax without 

 yellow, the base of the hinder tibiae and of the hinder 

 tarsi only yellow, &c. 



XiPHYDRIA QUADRIMACULATA, Sp. nov. 



Nigra ; mandibularutn bast late, maculis quatuor 

 abdominis basi, basi tibiarum late basique tarsorum posti- 

 corum albis ; alis hyalinis, nervis stigmateque nigris. ? . 



Long, 13 mm. 



Antennae 12-jointed : the scape bare, shining, dilated 

 at the apex ; the flagellum distinctly tapering towards 

 the apex, where the joints are brownish beneath ; the tenth 



