110 HYMEN0PTER& OF SARAWAK. 



Head, pro- and mesothorax smooth ; the metanotum 

 sparsely punctured, all the abdominal segments closely, strongly 

 longitudinally striated. The spine on the pronotum is stout, 

 long and curved. Near the apex of the propleurse are 2 stout, 

 curved keels ; in front of them 2 short ones on the lower side ; 

 there are 3 stout keels in front of the spine on the pronotum. 

 Scutellar depression large, with 2 keels. Base of metanotum 

 depressed and with a keel down its centre ; clown the middle, 

 extending from close of the base to the apex, is a longitudinal 

 keel ; bordering it on the apical half is, on either side, a 

 roundly curved keel, uniting these with the central ; below the 

 middle, is an oblique curved one, from the outer edge .of 

 which runs upwards an oblique one ; the sides are stoutly 

 keeled, the keel dilated into a blunt tooth below the middle ; 

 from these teeth 2 keels run to the inner keel, forming an area, 

 open at the lower innerside, below these are 2 longitudinal 

 keels, forming a closed area, twice longer than wide. Pleural 

 furrow shallow, smooth. The central keel on the apex of the 

 3rd abdominal segment becomes thickened into a blunt tooth ; 

 there is a similar projection on the middle of the 4th, but 

 much larger, and it commences near the base of the segment ; 

 the sides of the 3rd segment project at the apex into a stout 

 tooth, narrowed towards the apex ; a similar, but longer and 

 stouter tooth, is on the sides of the 4th ; the last segment ends 

 in a longish curved spine. The furrows are deep and stoutly 

 striated ; the basal slope of the 1st segment is smooth ; in the 

 middle are 2 keels, and the sides are also keeled. The median 

 segment, breast and legs are densely covered with fulvous 

 pubescence. The back of the abdomen may be infuscated. 



Allied to S. curvispina Cam. and S. dimidiata, West. Both 

 of these species have the abdomen for the greater part black. 

 The species is a Spinaria as limited by Enderlein (Stett. Ent. 

 Zeits., 1905, p. 229), Spinaria being now limited to the species 

 with a spine 6n prothorax. 



Spathiin^. 



Habnoba petiolata, Cam. 

 This species (described Journ. Straits Branch Eoyal As. 



Jour. Straits Branch 



