36 IPHIAULAX AND CHAOLTA. 



g. Black, short and broad, basal half of wings black, apical lac- 

 teous. The group of /. irichiosama. 



Iphiaulax pheres, sp. nov. 



Black ; antennas nearly twice the length of the body ; the 

 wings dark fuscous to the recurrent nervure and, in front, to 

 the base of the 1st. cubital cellule; the rest milky hyaline ; 

 stigma pale ochraceous, darker at the base ; the apical nervures 

 lacteous ; basal two-thirds of hind wings dark fuscous, the rest 

 clear hyaline. 9 . 



Length 8 ; terebra 2 mm. 

 Hob. Kuching. 



Head and thorax smooth and shining; the upper half of 

 orbits with an irregular ochraceous band ; the malar space, 

 antennal tubercles and clypeous brownish ; mandibles rufo- 

 testaceous, their apex black ; palpi black, thickly covered with 

 white pubescence. Front obliquely depressed, furrowed in the 

 centre; ocelli laterally bounded by a deep furrow. Temples 

 wide, not obliquely narrowed, rounded behind ; occiput almost 

 transverse. Pronotum with a curved, crenulated furrow before 

 the middle, the part above this bein^ narrowed and separated 

 from the lower. On the centre of the basal half of the me- 

 tanotum is a keel, bordered by an irregularly foveated furrow, 

 which spreads out obliquely at the apex, the fovese there 

 being larger and more clearly separated; the apical slope is 

 smooth and shining. Apical abscissa of radius shortly, but 

 distinctly, longer than the basal tw r o united ; 2nd. abscissa of cu- 

 bitus as long as the 3rd. ; apical abscissa of cubitus equal in length ; 

 recurrent nervure received at the apex of 1st. cubital ; transverse 

 basal nervure interstitial. Apical half of 1st. abdominal segment 

 rugosely, coarsely, punctured, the later depressions wide and 

 bearing 2 or 3 irregular keels; 2nd. segment in the centre coarse- 

 ly, irregularly longitudinally striated-punctured, the sides 

 rugosely, closely punctured and broadly depressed in the middle ; 

 thebasal plate smooth and shining, roundly narrowed to the apex ; 

 its width at the base more than its length ; its keel is stout and 

 reaches to the apex of the segment ; the following 3 segments 



Jour. Straits Branch 



