280 PEMPELTA BETUM. 



more the day following, and he captured a female 

 specimen at large in the wood on the 28th. (George 

 T. Porritt, 11th July, 1883; E.M.M., August, 1883, 

 XX, 69.) 



Pempelia davisella. 

 Plate CLIX, fig. 2. 



This day, 23rd July, 1873, I received from Mr. 

 Henry Bartlett three larvae of Pliycis {?) davisellus 

 (Nephopteryx genistella Dup.). They were in a fine, 

 loosely-spun open web of slight silken threads on a 

 piece of furze. 



The largest of them measures between five-eighths 

 and six-eighths of an inch in length; its form is 

 tolerably cylindrical, the head full and rounded at the 

 sides, the second segment a trifle larger, and the third 

 a trifle larger still, being the same size as the following 

 segments to the end of the tenth, from whence it 

 tapers gradually to the end of the thirteenth ; the 

 segments beyond the thoracic are on the back well 

 defined by a deep wrinkle, and subdivided by another 

 wrinkle (equally deep) into two unequal portions, the 

 greatest portion in front ; the larva is more wrinkled 

 along the sides, the spiracular region being a little 

 inflated and puckered ; the segments of the belly are 

 deeply divided and transversely wrinkled ; the anterior 

 legs are well developed, the ventral and anal legs 

 moderately so, and placed much beneath the body ; 

 the skin is slightly glistening on the head, the back 

 of the second segment, and the legs, but all the rest, 

 though smooth, is without gloss. 



With regard to colour, the dorsal line is blackish- 

 brown, bordered w r ith a line of very pale drab, next 

 with a ragged-edged stripe of deeper reddish -drab, 

 and this in turn by a stripe of very pale drab, on 

 which are placed the blackish tubercular dots in rings 

 a little paler than the ground. Along the subdorsal 

 region is a very broad, conspicuous, blackish-brown 



