nOARAf/D.-Ji—PERICALLlA. 99 



Lakva short, thick, the skin soft, whole surface covered 

 with a minute bristly pubescence; second and third segments 

 tapering in front, the second rounded ; on the eighth segment 

 are two long thin fleshy protuberances, curved back and 

 placed side by side like two long hooks ; two short, slightly 

 recurved protuberances are on the sixth segment and two of 

 smaller size on the seventh ; head rather small, pale brown 

 and having a whitish frontal V-mark ; ground colour pale 

 ochreous or orange-brown shaded or tinged with red, yellow, 

 violet or lilac ; a broad olive-brown dorsal stripe from the 

 second to the foui-th segment occupies the space between the 

 subdorsal lines, which are thence continued in a series of 

 loops, becoming obsolete on the eighth segment ; dorsal line 

 darker olive-brown, most conspicuous on the fifth and sixth 

 segments ; the back from the eighth to the twelfth segment 

 is occupied by an irregularly diamond-shaped olive-brown 

 patch, edged by a lateral yellow blotch, which is itself divided 

 by an olive stripe ; in the centre of the dorsal patch is often 

 a large pink or lilac blotch, dusted with black, and bisected 

 by the dark dorsal line ; two minute pale dorsal warts on the 

 seventh and two on the eighth segment surround the larger 

 prominences ; anal flap and prolegs edged with white ; on 

 each side of the anterior segments is a broad pale yellowish 

 or whitish stripe. (C. Fenn.) Variable in colour — drab, 

 pale brown, rich velvety brown, dark red, and intermediate 

 shades, even occasionally blotched on the sides with 

 green. 



August, usually till May or the beginning of June, hyber- 

 nating when quite small ; but in confinement some individuals 

 will feed up ver}^ rapidly, producing moths in the autumn, 

 the offspring of which — if any — hybernate at about the same 

 stage as the others. On honeysuckle, privet, and lilac, feed- 

 ing at night, but remaining during the day, most curiously 

 humped and drawn together, upon the food ])lant, with all 

 the appearance of a twisted-u]) dead leaf. It has a very 

 pulsions habit of rocking itself from side to side when at rest, 



