IPHIAULAX AND CHAOLTA. 41 



front, distinctly, roundly raised. Temples as long as the an- 

 tennal scape. Clypeus not clearly separated, rugose. Sides 

 of 2nd, abdominal segment broadly depressed ; those of the 3rd. 

 more deeply, especially towards the apex; both depressions 

 are irregularly striated ; there is a curved, indistinctly striated 

 furrow on the base of the 4th. segment. The basal 2 joints of 

 the tarsi are fully, together, longer than the tibiae. 



Allied to /. longitarsis with which it agrees in having only 

 the basal 2 segments of the abdomen striated ; but it may be 

 readily separated by the much longer ovipositor, rugose face 

 and rufous antennal scape. 



Iphiaulax pangceus, sp. nov. 



Black ; scape of antennae, head, pro- and mesothorax, red ; 

 wings uniformly dark fuscous, with black stigma and nervures ; 

 the 3rd. abscissa of radius as long as the- basal 2 joints united ; 

 2nd. abdominal segment without a distinct basal area. 



Length 14-15 mm; terebra 11 mm. 



Iiab. Kuching. October. 



Scape of antennae short, not quite twice longer than broad ; 

 the 3rl. and 4th. joints about equal in length. Temples distinct- 

 ly, obliquely narrowed, straight, if anything longer than the basal 

 2 joints of antennae, united; the occiput transverse; malar space 

 as long as the scape of antennae. Parapsidal furrows indistinct. 

 Fore tarsi nearly twice the length of tabiae. the basal 2 joints 

 being as long as them. The central lobe of 1st. abdominal seg- 

 ment irregularly longitudinally striated and with a stout keel 

 down the centre ; the 2nd. segment stoutly irregularly striated, 

 without a distinctly defined area at the base or distinct central 

 keel ; the basal half of the sides depressed, but not deeply or 

 clearly ; basal half of 3rd. segment closely, finely longitudinally 

 striated ; the suturiform articulation closely striated ; its pos? 

 terior lateral branch wide, shallow, not clearly defined ; the 

 transverse furrow on the 3rd. segment narrow, striated. 



The lower half of the face in the centre is bare, smooth : 

 the rest sparsely punctured and with longish black hair ; the 

 inner side of the clypeus has an oblique slope, its top with a row 

 of large punctures ; not separated by a furrow from the face. 



R. A. Soc, No. 42, 1904. 



