IPHIAULAX AND CEAOLTA. 39 



are much longer and not so much intermixed ; the 3rd. and 4th. 

 segments are closely, regularly striated. The apical half of the 

 sheaths of the ovipositor grey. 



Comes close to /. reticulatus and I. patrons ; it differs from 

 both in the central part of 2nd. abdominal segment not being 

 clearly separated and bounded by keels ; the former may further 

 be known by having the keel on the 1st. abdominal segment, 

 much stouter and dilated upwards at the base, the median seg- 

 ment too being black, the latter species is smaller, the abdomen 

 shorter compared with the thorax, the top of the clypeus is 

 rounded, not transverse, and is more distinctly separated from 

 the face ; the lateral bounding keels are stouter in patrons, with 

 the top only oblique. 



Iphiaulax reticulatus, Cam. 



This species (described Journ. St. Br. R. A. Soc. 1902, p. 105) 

 has been^taken at Mount Siban, and Ma tang, 3200 feet. At any 

 rate I cannot separate the specimens taken at these places from 

 those collected at Kuching. The species varies in size : the 

 scape of antennae may be black or red ; the punctuation on the 

 abdomen varies in intensity, and the apex on the sheath of 

 ovipositor may be black or white. The characteristics of the 

 species are the distinct, large fovea on the apex of the metano- 

 tum, the stout keel on the 1st. abdomen segment raised at the 

 base, the distinctly raised and separated middle part of 2nd. seg- 

 ment, this part being bordered by a keel and it becomes narrowed 

 towards the apex; the longish, rounded temples, slightly roundly 

 incised occiput and long narrow antennal scape. 



The 5 is similar ; the punctuation of the abdomen is coarser 

 throughout : the antennal scape red and middle femora and 

 tibias red. In the $ the latter may be more or less reddish. 



Iphiaulax longitarsis, sp. nov. 



Black ; the head, thorax except the greater part of the meta- 

 notum, the fore legs and the greater pari of the middle 

 femora, red ; the wings fuscous violaceous, the stigma and ner- 

 vures black ; the basal 2 segments of abdomen longitudinally 

 striated ; the plate on the 2nd. segment smooth, its width the 



B. A. Soc. No. 42, 1904. 



