LEMIODES PULYERALIS. 151 



the plant; some of them I observed crawled to the 

 edge of the leaves and there suspended themselves by 

 a silk thread an inch long hanging from the leaves, but 

 in a short time they had all disappeared under the lower 

 surface of the leaves. At night of the 27th three 

 more were hatched and put on the plants, and on the 

 morning of the 28th seven more. (William Buckler, 

 28th July, 1881; Note Book IV, 27, and 44-45.) 



PlONEA FORFIOALIS. 



Plate OLIV, fig. 5. 



Length about three-quarters of an inch when 

 crawling, shorter when at rest. It is very contractile, 

 so that although when at rest it has a very plump ap- 

 pearance, when crawling it is comparatively slender. 

 The head has the lobes rounded, and, being flattened 

 above, has a narrow appearance when viewed from 

 the side. Body cylindrical, attenuated very consider- 

 ably from the sixth to the anal segment posteriorly, 

 and from the fifth to the head anteriorly; segmental 

 divisions well defined ; skin semi-translucent, soft and 

 glossy; tubercular dots raised and distinct; from 

 each of them springs a short hair, and there are a few 

 similar hairs also on the head. 



The ground colour varies in different specimens 

 from dull dark yellowish-green to brownish-green; the 

 shining head is pale wainscot brown, with the 

 mandibles and a few scattered dots dark brown ; a 

 broad dark green pulsating vessel forms the medio- 

 dorsal stripe ; and the space between this stripe and 

 the spiracles is filled up with confused stripes of 

 various shades of grey or green ; there is a pale 

 whitish stripe along the region of the spiracles ; 

 segmental divisions yellowish ; trapezoidal spots very 

 distinct, intensely black with white edging. Ventral 

 area, legs, and prolegs uniformly pale semi-trans- 



