42 HYMENOPTERA FROM SARAWAK. 



small single keel between the antennae ; the scape of the anten- 

 nae is stout, a! >out twice longer than broad; the front is keeled 

 in the centre; the keel is stout with oblique sides; it is not hol- 

 lowed, and there is no keel on each side. The first cubital cel- 

 lule is clearly separated from the first discoidal ; all the apical 

 neivures in the hind wings are obliterated : there is only the 

 brachial cellule defined and there are no transverse nervures; 

 the radial cellule in the fore wing is elongate, narrow. 



The affinities of this genus are with Agathts and Troticus. 

 From the former it may be separated by the cleft claws ; in the 

 latter peculiarity it agrees with 'Troticus; but it wants the 

 abnormal palpi of that genus. The hinder legs are longer than 

 they are with Agat/as, and this is also the case with the wings. 

 The middle lobe of the mesonotum is distinctly raised; the 

 scutellar depression is wide and narrow ; the scutellum is keeled 

 at the base. 



Hulcotroticus rujicullis, sp. nov. 



Niger, capite, prothorace, mesothorace, pedibusque anticis 

 ruhs; alis fumatis, nervis stigmateque nigris 6 . 



Long: 8-9 mm. 



Hab. Sarawak, Borneo ( Shelf ord). 



Autenna? black ; the scape rufous. Face and clypeus shin- 

 ing, sparsely and slightly punctured and thickly covered 

 with short, blackish hair. Thorax rufous; the median seg- 

 ment, except the pleurae at the base which are rufous, black. 

 Mesonotum sparsely and indistinctly, the scutellum more 

 distinctly, punctured; its apex stoutly keeled and depressed 

 laterally above. Mesopleuraj, below the oblique furrow, closely 

 and distinctly punctured; at the base above are two stout 

 oblique keels; the furrow is wide and bears some stout 

 oblique keels; below the middle behind is an oblique furrow; 

 the apical bordering furrow bears some stout keels. The basal 

 furrow on the metapleurai is wide and deep; on it is an upper 

 and three lower stout, widely separated, keels. On the base of 

 the median segment are three, on the apex five areai; the 

 central basal area is smaller than the lateral and ib x stoutly 

 transversely striated; the central apical one is hollowed and is 

 gradually narrowed towards the apex; there is also an outer 



