282 THE ENTOMOLOGIST. 



in a semi-torpid state, but in mild weather fed with evident 

 relish on the tender bark, sometimes eating nearly tlirough 

 the twigs. In early spring many of them died off"; and the 

 only one which reached maturity was full grown early in 

 June, when I described it as follows: — Length about two 

 inches, and of average proporlionale bulk. Head Hat, and 

 deeply notched on the crown, narrower than the 2nd segment, 

 into which, when the larva is at rest, it is partially withdrawn. 

 Body cylindrical, of tolerably uniform width, but with several 

 prominences, as follows : the 5th segment is swollen from the 

 sides into two conspicuous dorsal humps, divided by a notch 

 on the centre of the dorsal surface ; on the 6th segment is a 

 transverse ventral ridge ; and on the 12th are two very small 

 dorsal humps ; there are also two short anal points. iSkin 

 tough and rather shining, puckered on tlie anterior and 

 posterior segments, but smooth on the middle of the dorsal 

 surface. The ground colour is marbled with ahuost every 

 shade of pale brown, tinged in several places with dull dark 

 green, and blotched along the sides with pale bluish gray. 

 Head chocolate-brown, the face mixed with gray. Medio- 

 dorsal stripe interrupted and indistinct, a little darker than the 

 ground colour; subdorsal and spiracular stripes scarcely ])er- 

 ceptible. Spiracles distinct, pinkish brown, encircled with 

 chocolate. The ground colour of the ventral surface is 

 variegated with the same shades of brown as the dorsal 

 surface, but has, in addition, several purplish mark's ; on each 

 side the ridge on the Gth segment is a pale yellow mark; 

 there is also the rather broad, interrupted, dull yellow, central 

 stripe, characteristic of the genus. Legs pointed and curved 

 inwards, dull chocolate-brown, the first joint paler than the 

 others. When at rest the larva greatly resembles a twig, the 

 notched head being exactly similar to two oak-buds. The 

 single larva went down on June lOlh ; and the imago, a 

 female, appeared on the 5th of July. — Geo. T. Poniit ; 

 Huddersjield, December 11, 1872. 



Insects Reared dtiriiuj the Year (1872): — 



H. Senecionis. Bred from larvae found in the seed-beads 

 of Senecio Jacobaja ; coast. 



P. Marmorella. Bred in July, from larvae found on black- 

 thorn in May. 



S. Achatana. Bred in July, from larvaj collected on sloe 

 in May. 



