2 ' HYMENOPTKRA FROM BORNEO, 



iv. The plate striated, gradually narrowed to a point 

 at or near the apex of the segment. The striation 

 in this group extends to the apex of the 4th 

 abdominal segment. The 1st abdominal segment 

 is more or less striated and the metanotum is 

 more or less black ; in longiceps it is strongly 

 striated. Longiceps, Cam. ; lineativentris, Cam. ; 

 pallid iorbitalis, Cam., which is noteworthy for the 

 head being largely pale yellow. 



v Iphiaulax insignis, Sm. f \3^i^uc^sCS 

 Bracon insignis, Smith, Journ. Linn. Soc, 1857, 123. 

 Iphiaulax insignis, Szepligeti, Termes. Fiizetek, XXIV. 

 372.? 



This long-tailed species has been taken by Mr. Hewitt in 

 September. The 9 is 22 mm. long; with the ovipositor 83 mm; 

 its 1st abdominal segment is closely longitudinally striated ; 

 the area on 2nd segment is large triangular, ending in a sharp 

 point, not reaching to the base of the apical third of the 

 segment ; it is bordered by stronger, oblique striae, the rest of 

 the segment bears close, more or less interlacing striae ; the 

 3rd to near the apex and the basal two-thirds of the 4th are 

 closely striated, the striae radiating from the middle ; the rest 

 of the abdomen smooth, bare shining. The face is tinged with 

 yellow ; the head somewhat thickly covered with black pu- 

 bescence. Basal half of mandibles red, tinged with yellow, 

 the apical black. Palpi pale red, covered with pale pubes- 

 cence. 



The I. insignis of Szepligeti, quoted above from Java, is 

 probably different from Smith's insect, from Borneo ; Smith 

 gives the length of the ovipositor as 44 lines ; Szepligeti 

 gives the length of his insignis as 55 mm. ; the body length 

 being 20 mm. Of the known Bornean species the present 

 can only be confounded with I Shelf ordi, Cam. (Journ. St. 

 Br. Roy. As. Soc. 1903, 103), which is smaller (15 mm.), but 

 with the ovipositor longer (95 mm.), the striation only extends 

 on the abdomen to the middle of the 3rd segment ; the area on 

 the 2nd is longer, being twice longer than its greatest width ; 



Jour. Straits Branch. 



