PHYTOPHAGOUS AND PARASITIC HYMENOPTBRA. 125 



discoidal nervure. Transverse median nerviire interstitial. Ab- 

 domen strongly compressed, more than twice as long as the head 

 and thorax united. Apex of clypeus transverse ; labrum projecting, 

 roundly narrowed towards the apex, more than half the length of 

 the clypeus. 



This genus has the thickened base of radius of Pleuroneurophion 

 and Enicospilus ; the former may be known from it by the not 

 interstitial transverse basal nervure and by the angled, almost broken 

 disco-cubital nervure ; the latter by the presence of blister spots 

 and by the transverse median nervure in hind wings being broken 

 far below the middle. Characteristic are the projecting labrum and 

 the spotted wings. 



34. — Spilopkion maculipeniiis , sp. nov. 

 Plate B, fig. 13. 



Testaceous, largely marked with yellow ; three large marks, 

 narrowly separated, on the mesonotum, apex of metanotum, a large 

 mark, obliquely narrowed at the base, on the lower half of the 

 mesopleurse, a large ovoid mark on the metapleurae ; the third 

 abdominal segment above and the greater part fifth and sixth black ; 

 wings hyaline, the base of radial cellule smoky ; the stigma and the 

 nervures black ; the former pale at the base; face, oral region, and 

 orbits lemon-yellow ; antennae rufo-testaceous, ?. 



Length 15-17 mm. 



Peradeniya, September. 



Basal abcissa of radius thickened at the base. Disco-cubital 

 nervure roundly curved downwards, the apex broadly, roundly 

 curved upwards ; the cellule bare above, but without horny points. 

 Head smooth and shining, almost entirely yellow. Pro thorax and 

 mesothorax impunctate. Scutellum laterally keeled to near the apex. 

 Metanotum behind the keel smooth ; the base depressed, with two 

 stout keels in the middle ; down the centre of the smooth part is a 

 fine longitudinal keel. The basal part is smooth laterally ; the 

 centre with three or four irregular keels ; the central stoutly irregularly 

 reticulated, its sides obliquely stoutly striated, the striae clearly 

 separated ; the apical slope has some widely separated irregular 

 longitudinal striae. Pleurae smooth and shining. 



35. — Paniscus intermedius, sp. nov. 



Fulvous, the thorax shghtly tinged with yellow, the face, oral 

 region, and orbits pale yellow; antennae rufous, darker towards the 

 apex, wings hyahne, the stigma fuscous, the nervures blackish. 

 Scutellum stoutly keeled, the keels uniting at the apex in a sharply 



