366 



minai segment covered with long black hair. The suturiform 

 articulation is brown and crennlated ; it is the only furrow. cf. 



Length 15 mill. 



Diina, 20 th September (A. Koller). 



Temples wide, broadly rounded behind, as long as the eyes; the 

 occiput broadly rounded inwardly. Face smooth, depressed, the 

 sides forming a broad border to the eyes. 



Iphiaulax dimaensis sp. n. — Black, shilling, the head, 

 palpi, mandibles except at apex and the prothorax pale fulvous 

 yellow, as are also the fore legs ; the antennse rufous from before 

 the middle ; wings deep fuscous, slightly tinged with violaceous, 

 the stigma and nervures black, the 2" d and 3 rd abscissœ of radius 

 equal in length; the 2 nd transverse cubital nervure bordered with 

 hyaline ; the récurrent nervure not quite interstitial. Abdomen 

 smooth, neither punctured nor striated, the transverse and oblique 

 furrows being also smooth ; there is a keel down the middle of the 

 raised central part of the l st abdominal segment; there is a stout 

 keel, running from the base to the raised apical part and narrowed 

 gradually, but not much, towards the apex down the middle of 

 the 2 na ; a small triangular one on the base of the 3 rd and a still 

 smaller one on the base of the 4 th . The centre of the face is raised, 

 from near the top, and is united to the antennse by a keel; its 

 lower half is narrowed, but not much and is separated from the 

 clypens by a distinct furrow, cf. 



Length 11 mill. 



Dima, 20 th September (A. Koller). 



The middle and sides of the basai 4 abdominal ventral segments 

 are white. 



A species very similar to I. fulvicollis Cam. in size and colou- 

 ration; but from which it may readily be separated by the diffé- 

 rence in the sculpture of the abdominal segments ; in fulvicollis 

 the 2 nd is striated and its keel is triangularly dilated at the base, 

 and the suturiform articulation is crenulated, while the pro- 

 thorax is entirely yellow, not with the apex of the propleurœ 

 black. 



Iphiaulax Kolleri sp. n. — Black, the head, mandibles except 

 at the apex, and the greater part of the antennal scape pale yellow, 

 the palpi of a more rufous yellow than the head; the prosternum, 

 fore coxœ and trochanters fuscous, the fore femora and tibiae 

 yellowish testaceous, the latter darker coloured than the former, 



