PHYTOPHAGOUS AND PARASITIC HYMENOPTERA. 12] 



The depression at the base of the metanotum is deep, roundly 

 narrowed towards the apex ; its width at tlie base longer than the 

 total length. This species is much larger than any of the recorded 

 British Indian species. It has keels on the metanotum as in 0. areo- 

 latus, Cam., but, apart from the smaller size of the latter (15 mm.), 

 areolatus has the basal depression on the metanotum semicircular, 

 not dilated distinctly at the apex as in the Ceylonese species. 0. 

 fitscomaculatus , Cam., is also smaller and may readily be known 

 by the recurrent nervure being received opposite the end of the 

 basal abcissa of the radius. In one specimen there are indications 

 of three fuscous lines on the mesonotum. 



27. — Phuroneurophion erythrocerus , sp. nov. 



Head pale lemon-yellow, the thorax pale testaceous, the mesono- 

 tum more rufous in tint; the abdomen, except at the base, rufo- 

 testaceous, darker towards the apex ; legs testaceous, the anterior 

 paler. Wings hyaline, the stigma testaceous, the nervures blackish ; 

 the basal abcissa of the disco-cubital nervure slightly roundly curved 

 downwards at the apex ; there is hardly an indication of a stump 

 of a nervure on the disco-cubital nervure ; its apical abcissa is 

 slightly but distinctly longer than the basal abcissa of the cubitus, 

 which is shghtly shorter than the recurrent nervure ; the disco- 

 cubital is thickened in the middle, with a long bulla beyond. Pro- 

 thorax and mesothorax closely punctured, the propleurae obscurely 

 striated. Basal depression of metanotum with two stout and some 

 indistinct keels; the base smooth, the rest with broadly rounded striae 

 Metapleural keel broad, rounded at base and apex, the middle 

 slightly turned upwards, ?. 



Except that there can hardly be said to be a stump of a nervure 

 on the disco-cubital nervure this species fits into Pleuroneurophion. 

 It has the thickened base of the radius of that genus and of Eniscos- 

 pllus, but it wants the horny points found always in the latter genus. 



The transverse median nervure is placed behind the transverse 

 basal ; the median nervure in hind wings is broken far below the 

 middle. The oceUi are not in a black patch. The antennae are 

 much more reddish in tint than the body. 



Length 14-15 mm. 



Peradeniya. 



28. — Eniscospilus spilonotus, sp. nov. 



Rufo- testaceous, the head, except the ocellar region which is 

 black, yellow ; the mesonotum with three large black lines, the fifth 

 and following segments of the abdomen black. Antennae black, 

 fuscous towards the apex. Wings hyaline, the stigma and nervures 



