1901.] HYMENOPTERA OE THE " SKEAT EXPEDITION." 43 



the hinder coxae, except above, the base of the trochanters, the 

 apex of the hinder femora and of the hinder tibiae, black. Abdomen 

 black ; the base and apex of the petiole and the apical third of the 

 other segments yellow ; they are closely and distinctly punctured, 

 the petiole more coarsely than the others. 



There is a short broad tubercle on the centre of the median 

 segment ; it is joined to the teeth by an oblique broad yellow 

 band ; all the thoracic spines are yellow, as are also the tegulae, 

 scutellum, and tubercle.] 



Bkaconid.e. 



Iphiaulax malayanus, sp. n. 



Lutens, eapite, antennis tarsisque posticis nigris ; fade clypeoquc 



'pallide Jiavis ; alts fasco-violaceis, ad basin late Jf avis. $ . 

 Long. 12, terebra 4 mm. 



Bab. Singora, Malay Peninsula. 



Antennae entirely black, as long as the body ; the scape smooth 

 and thickly covered with long fuscous hair ; it is more shining 

 than the flagellum. Head black, shining ; the face from shortly 

 below the antenna?, the oral region, and the malar space pale 

 yellow. Face smooth ; in its centre, below the antennae, is a deep 

 furrow with oblique sides. The clypeus is surrounded by a keel, 

 which is more distinct on the top, where it forms a semicircle. 

 Thorax smooth and shining ; above, and on the sternum, it is 

 thickly covered with long pale hair. The meso- and metapleural 

 furrows are smooth, wide, and deep. Legs coloured like the body, 

 thickly covered with white hair; the hinder tarsi are deep black. 

 Wings to shortly beyond the transverse median nervure yellowish 

 hyaline ; the rest deep fuscous, with a violaceous tinge, except the 

 base of the stigma broadly and a narrow oblique mark on the base 

 of the first cubital cellule. Petiole smooth, except the raised 

 central part, which bears large, deep, elongated punctures. The 

 second segment is closely, rugosely punctured ; the central basal 

 part is smooth and is not prolonged into a keel ; the basal depres- 

 sion is deep ; the basal branch is striated in the bottom, the wider 

 apical one is smooth ; at its apex are four narrow keels. Securi- 

 form articulation deep, wide, stoutly, but not very closely, longi- 

 tudinally striated; the apical furrow on the segment is narrow, 

 deep, and smooth ; the 2nd and 3rd furrows are deep and closely 

 striiited, those on the apices of the segments are smooth and 

 deep. 



Etaniid m. 



[Eva vi \ BHBLFOBDI, sp. n. 



Nigra, ba$ifiagelli antennarum, trochanteribw anterioribus, ban 



tibiamm poaticarum b(isi</n, tarson'm /><>.sti<-<>ruin lute, albis ; 



alls fusco-violaceis. £ . 

 Long. 1 2 mm. 



