84 Cameron, Hymenoptera Orientalia. 



more narrowly at the apex ; the second is similarly 

 coloured, but with the white narrower ; the third and 

 fourth have the sides white ; the apical is entirely white. 

 All the segments are stoutly longitudinally striolated ; 

 the third and fourth project at the apex into stout, sharp 

 spines, and, in the middle above, into stouter triangular 

 ones ; the apical segment ends in a long, sharp, slightly 

 curved spine ; the sheath of the ovipositor is black and 

 slightly curved. Wings fulvo-hyaline ; there is an oblique, 

 black cloud at the base of the stigma ; the apex of both 

 wings smoky ; the stigma, costa and the basal nervures 

 luteous. 



Only one species of Spinaria has been recorded from 

 the Indian mainland ; — vS. spinator Guerin, from Bengal. 

 It differs from the species here described in the thorax 

 being entirely rufous ; the abdomen pale red ; and the 

 hinder tarsi only black. In its general coloration our 

 species comes nearest to 6". dimidiata from Ceram. The 

 genus appears to be characteristic of the Indian and 

 Malay Islands. 



AGATHIS. 



a. Wings hyaline, smoky at the apex. 



Agathis KHASIANA, sp. nov. 



Lutea; antennis tarsisque posticis nigris ; alis hyalinis, 

 apice fumatis ; macula substiginatili nigra. $. 



Long. 12 mm. 



Antennae entirely black, except for an obscure rufous 

 mark on the upper side of the scape ; the flagellum 

 covered with dense, black, stiff, microscopic pubescence ; 

 the scape strongly punctured, covered with long white 

 hair. Head : the occiput and vertex thickly covered 

 with longish, fulvous hair; the face with shorter, pale fuscous 



