HYMENOPTERA FROM SARAWAK. 61 



of the tarsi are testaceous at the base. Wings hyaline ; there 

 is a fuscous cloud at the stigma extending from the base of the 

 cubitus to the apex of the areolet ; there is another fuscous 

 cloud at the apex. Abdomen black ; the petiole is rufous, with 

 a broad fuscous band near the base of the post-petiole ; the 

 apical third of the second segment and the apical two segments 

 are white. 



Friona, gen. nov. 



Radial cellule elongate. Areolet moderately large (larger 

 than in Mesostenus) wider than long ; the cubital nervures 

 parallel, straight, not oblique ; the second faint ; the transverse 

 basal nervure interstitial or nearly so. The transverse median 

 nervure in the hind wings is 1 roken far below the middle. 

 Head wider than the thorax ; the front is stoutly striated and is 

 depressed in the middle. Eyes large, parallel ; the malar space 

 is moderate. Face short, not extending below the level of the 

 eyes. Clypeus roundly convex, clearly separated behind ; its 

 apex broadly rounded ; labrum projecting. Mandibles with 

 two large "triangular teeth. Thorax more than three times 

 longer than broad ; pronotum dilated in front ; the parapsidal 

 furrows deep, extending beyond'the middle. Median segment 

 elongate, its base smooth ; there is a transverse keel near the 

 base, the part beyond it is closely transversely striated ; the 

 apex of the segment has a straight, steep slope and projects 

 bluntly at the edges above ; the spiracles are small, about three 

 times longer than broad. Legs longish, slender ; the fore tarsi 

 are twice the length of the tibiae. Antennae longish, slightly, 

 but distinctly, dilated at the middle ; the third joint is longer 

 than the fourth. 



Has the usual form and colouration of the Mesosteni. The 

 generic distinctions lie in the strongly striated depressed front 

 and the transversely striated median segment, with its steeply 

 sloped, clearly separated apex. 



Friona striolata, sp. nov. 



Nigra, late flavo maculata ; mesopleuris fere immaculatis ; 

 pedibus fulvis, posticis nigro-maculatis ; alts hyalinis nervis stig- 

 matique nigris $ . 



