PTER0PH0RUS OCHRODACTYLUS. 339 



very conspicuous, and betrays the presence of the 

 larva. 



While immature, the larva is darker in its colouring 

 than it afterwards becomes ; it is blackish-green when 

 not more than a quarter of an inch long, glaucous- 

 green with grey stripes when about three-eighths in 

 length; but, when full-grown, the larva measures a 

 little more than half an inch, its figure moderately 

 slender, cylindrical, and tapering a little from the 

 third segment to the head, which is rather rounded ; it 

 tapers also from the eleventh segment to the end of 

 the thirteenth ; the segmental divisions are well defined 

 on the back, and rather deeper on the belly ; the legs 

 are all tolerably well developed. 



The colour of the head is very pale, either of a 

 brownish-yellow or greyish-yellow, semi-pellucid and 

 shining ; the ocelli are large and blackish ; the mouth 

 is blackish-brown ; on the second segment is a shining 

 plate of the same colour as the head, bearing minute 

 blackish dots, and another plate of similar tint is on 

 the anal tip ; the rest of the back is either a lively 

 green, or else a rather subdued transparent light 

 green, bearing a dark olive-brownish pubescent or 

 bristly dorsal line ; a naked stripe of opaque greyish, 

 or whitish-grey, follows at a short interval, on which 

 the minute tubercular black dots are visible ; then 

 comes the subdorsal thinner stripe of the transparent 

 greenish ground colour, and then another naked thin 

 stripe of greyish, which is succeeded by a broad 

 lateral band of the ground colour, but so thickly 

 covered by a minute bristly kind of brown pubescence 

 as to assume an olive hue, and just within its lower 

 margin are the circular brownish-red spiracles, out- 

 lined with black, and surrounded with a ring of naked 

 ground ; beneath them runs an inflated and puckered 

 stripe of opaque greyish-white, relieved below by a 

 line of the brown pubescence ; the belly and all the 

 legs are of the pale greenish ground colour, and but 

 very slightly pubescent ; on the belly, between each 



