46 IPHIAULAX AND CHAOLTA. 



fovea in its centre above ; the sides punctured. Clypeus short, 

 obliquely sloped, its top rounded. Temples obliquely narrowed, 

 straight, as long as theantennal scape ; occiput slightly, roundly 

 incised. Parapsidal furrows obsolete. First abdominal seg- 

 ment distinctly longer than the 2nd., its length nearly twice the 

 width at the apex ; the basal half of the centre with a stout cen- 

 tral keel ; the sides and apical half stoutly, irregularly reticu- 

 lated ; the lateral furrows stoutly, irregularly transversely 

 striated ; the 2nd. segment stoutly irregularly reticulated, the 

 strife in the centre more irregular, broken and widely separated ; 

 there is no basal area, but a distinct keel runs to the apex. The 

 suturiform articulation deep, narrow, crenulated ; the lateral 

 apical branch, wide, striated like the rest of the segment ; there 

 is a distinct crenulated furrow on the base of the 4th. and 5th. 

 segments. 



Iphiaulax pampatensis, sp. nov. 



Black, the pro- and mesothorax dark red ; the front, except 

 in the centre above, the face, clypeus, lower two-thirds of outer 

 orbits, base of mandibles and palpi, yellowish-testaceous ; fore- 

 legs fuscous-testaceous, the middle coxee, trochanters and fem- 

 ora darker yellowish-testaceous ; their tibiae and tarsi almost 

 black ; wings fuscous, highly iridescent, the stigma testaceous, 

 darker in front ; 3rd. abscissa of radius longer than the basal 

 two united. 6 • 



Length 11-12 mm. 



Hob. Pampat. May. 



Scape testaceous below, pilose ; about 3 times longer than 

 thick. Front and vertex smooth and shining, the front not much 

 depressed, the ocelli surrounded by furrows which run into the 

 frontal one. Face closely punctured, covered with long fus- 

 cous hair ; clypeus surrounded by a rounded furrow. Eyes 

 large, projecting, broader below than above ; malar space small 

 not much more than the length of the 2nd. antennal joint. 

 Temples as long as the antennal scape, rounded, slightly obli- 

 quely, narrowed ; occiput transverse. First abdominal segment 

 narrow, longer than the second, aciculated ; the apex roundly 

 convex, very smooth and shining ; the second closely, irregularly 



Jour. Straits Branch 



