22 ACEONYCTA M.YRIGM. 



segment, but the two lobes were rounded and well 

 defined on the crown ; the second segment was almost 

 flat on the back, though all the other segments were 

 remarkably rounded and plump, and the segmental 

 divisions deeply cut. 



The ground colour was a rather smoky deep olive- 

 green ; the head black and shining, the lobes outlined 

 with pale olive, the base of the papillae lemon-yellow, 

 the mouth olive-green ; the second segment had a 

 black shining plate on the back, divided in the centre 

 by a thin line of yellowish olive ; the third segment had 

 an orange-red transverse central band extending to the 

 subdorsal region and dividing a broad, oval, dorsal, 

 black velvety mark, with an olive tubercle in front at 

 each end; the fourth segment had a similar broad 

 dorsal oval of black, bounded on either side by a large 

 subdorsal lemon-yellow tubercle ; on each segment, ex- 

 cepting the first two, there was a transverse black 

 velvety broad band, somewhat saddle-shaped, and upon 

 this, in the subdorsal region, from the fifth to the 

 thirteenth segment inclusive, was a conspicuous lemon- 

 yellow blotch, something of a triangular form, but with 

 rounded angles ; the lower side marking well the sub- 

 dorsal region, and bearing on its hinder angle, sloping 

 upwards, two large wart-like tubercles of the same 

 colour, and almost close together ; the spiracles were 

 white, and situated in the bottom part of the velvety- 

 black transverse bands, and a little above each, on 

 black band, was an olive tubercle ; immediately beneath 

 the spiracles was an inflated and rather punctured 

 stripe of bright orange-red running along the sides ; 

 below this were other olive tubercles, two on the 

 lower side of each segment ; the ventral surface was 

 also of the olive ground colour ; the prolegs were of a 

 darker smoky olive, the anterior legs black. 



All the tubercles were furnished with fascicles of 

 hairs of a smoky-olive tint ; those on the third segment 

 were longer, more numerous than the others, and 

 directed forwards to the crown of the head; some 



