182 STHNOPTERYX HYBRIDALIS. 



has an attenuated appearance. Head a little wider 

 than the second, but scarcely so wide as the third 

 segment ; it is highly polished, has the lobes rounded, 

 and the jaws prominent. Body attenuated a little 

 towards the extremities ; it is cylindrical, but the 

 segmental divisions being deeply cut, and each seg- 

 ment plump and rounded, and divided into two sections, 

 give it a very uneven appearance. There is a polished 

 plate on the second segment; the skin is semi-trans- 

 lucent and glossy, with a tough appearance ; tubercles 

 raised, and from each of them springs a short stiff 

 hair. 



The ground colour is a warm olive-drab ; the head 

 varies in different specimens from reddish-brown to 

 dark sienna-brown, and is more or less marbled with 

 black, the mandibles being black in all cases. The 

 plate on the second segment takes the same colouring 

 as the segments which follow, in some instances, how- 

 ever, being a little browner. Dorsal line dark olive- 

 drab, and being bordered with pale drab is very 

 distinct; outside it is a prettily-arranged series, four 

 on each segment (one on each side of every section of 

 the segment), of large, round, black polished plate- 

 like marks, and each mark is enclosed in a circle 

 of pale drab. These form the most characteristic 

 markings of the larva. There are no noticeable sub- 

 dorsal or spiracular lines, but there is a pale whitish 

 waved stripe below the spiracles, which are black, 

 encircled with grey. Ventral surface uniformly semi- 

 translucent dark olive-green. 



When young, and indeed until just before its full 

 growth is attained, the larva is much more slender, 

 and the head is then even larger than the third seg- 

 ment. 



These larvae were about the liveliest creatures I 

 ever reared ; they wriggled backwards and forwards 

 in all attitudes, excelled in this respect by no Tortrix ; 

 they reminded me more of young eels than anything 

 else, in both their colour and actions mimicking those 



