60 HYMENOPTERA FROM SARAWAK. 



areolated strongly striolated median segment affords a good 

 mark of recognition. The head is dstinctly wider than the 

 thorax ; the clypeus is clearly separated from the face : the 

 mandibles are large, broad and bi-dentate at the apex ; the 

 parapsidal furrows only extend to shortly beyond the middle of 

 the mesonotum ; the scutellar depression is deep, wide and 

 keeled ; the base of the mesopleurae is keeled ; the petiole is 

 longer than the second segment ; the post-petiole is distinctly 

 separated. 



Latteva albobalteata, sp. now 



Nigra, abdomine albo balteato ; pedibus testaceis ; tibiis, 

 tarsis trochanteribusque posticis nigris ; tibiis posticis albo 

 annulate ; alis hyalinis, fusco-bifasciatis 9 . 



Long : 8 mm. 



Hab. Sarawak, Borneo (Shelford). 



Antennee black, the eighth to sixteenth joints white be- 

 neath ; the scape is brownish on the under side. Head entirely 

 black ; the front is keeled down the centre ; the keel on either 

 side is oblique. Face opaque, alutaceous ; the clypeus bare, 

 smooth and shining. Mandibles black, rufous in the middle. 

 Maxillary palpi white. Thorax black, except the scutellum 

 which is broadly yellow in the middle ; the apex of the middle 

 lobe of the mesonotum is rugose. The median segment behind 

 the keel is smooth ; the middle is obliquely-longitudinally 

 striated ; the apical slope is transversely striated, the stries 

 running into reticulations ; the spines are black, longer than 

 broad. The propleurre obliquely striated in the middle ; the 

 middle have a plumbeous hue ; they are finely striated below 

 the tubercles, stoutly behind the keel, and closely on the upper 

 part of the depression behind the middle ; the lower curved 

 keel has some stout keels on the basal half as has also the 

 apical bordering one. Metapleurse striated indistinctly at the 

 base and much more strongly towards the apex ; the oblique 

 furrow behind the middle is broad and deep. The anterior 

 four legs are testaceous, paler, more yellowish at the base ; 

 their tarsi fuscous ; the hinder pair are black ; the femora 

 rufous, black at the apex ; the coxa^ are pale rufous ; there is a 

 narrow white band near the base of the tibije : the apical joints 



