48 IPHIAULAX AND CHAOLTA. 



Hab. Kuching. March. 

 t. As in h. but with the apex of the antenna bro&dly white. 



Iphiaulax omaticornis, sp. nov. 



Head and thorax red ; the antennae, except the scape which 

 is rufous, and the apical 13 joints which are white; abdo- 

 men and the 4 hind legs, black; the front legs rufo-testaceous ; 

 the middle legs fuscous; wings fuscous, the nervures and stig- 

 ma black ; 1st. abdominal segment with some stout, irregular 

 curved striie ; the area on 2nd segment reaches beyond the mid- 

 dle where its keels unite ; its base is irregularly striated ; its 

 apical two -thirds are bordered by short, stout, curved keels ; 

 outside these closely, stoutly, longitudinally striated to ne.tr 

 the apex : the depressed middle of the lateral region smooth 

 for the greater part; suturiform articulation wide, deep and 

 crenulated ; 3rd segment closely, longitudinally striated ; the 

 middle of the sides smooth ; the base stoutly striated; the furrow 

 on the apex is distinct and crenulated; the extreme apex of 

 the segment and the whole of the following smooth, except that 

 there is a crenulated furrow on the 4th. 9 . 



Length 11-16 mm.; terebra 24 mm. 

 Hab. Kuching. May. 



Scape of antennae fully 3 times longer than wide narrowed 

 at the base, the apex produced below; 2nd. joint larger than 

 usual ; the 3rd. distinctly longer than the 4th. its base dilated 

 Face and clypeus rugosely punctured ; malar space small, not 

 much longer than the 2nd antennal joint. Temples as long 

 as antennal scape, occiput transverse. Parapsidal furrows in- 

 distinct. Hind legs 'ong and slender ; their femora more or less 

 fuscous; the tarsi distinctly longer than the tarsi ; middle tarsi 

 longer compared with their tibiae. 



A distiact, well-marked species easily separated by the 

 white apex of antennae, long slender legs with all the tarsi clearly 

 longer than their tibiae and short malar space and by the basal 

 3 abdominal segments being striated. It appears to vary con- 

 siderably in size. 



Jour, Straits Branch 



