132 HEPLVLUS HUMULI. 



soon turning black ; this change seems somewhat 

 strange, as the newly-hatched larva is white. The 

 young larva is just over 2 mm. in length, slender, the 

 head pale brown, the body white, the skin somewhat 

 transparent, the internal organs showing dark, the 

 places of the usual dots marked with little black 

 hairs ; it is very active, and can shuffle backwards as 

 quickly as forwards. In three weeks' time the larva is 

 4 mm. long, still whitish with brown internal stripe, 

 the head dark brown, the usual dots now visible, being 

 black but very small. At the end of seven weeks the 

 larva is 8 mm. long, much as before ; there is now seen 

 a black collar on second segment. At the end of thirteen 

 weeks the larva is 17 mm. long, the head long-oval in 

 outline, and glossy red brown in colour, set flat with 

 the body ; the body dirty whitish, with a blackish line 

 down the back, lessening in width to segment 10, where 

 it ends ; a large shining plate on the second segment 

 reddish-brown ; the tubercular dots distinct, horny, 

 the largest being the round front pairs of the trape- 

 zoidals, in colour brownish, each with a short stiff 

 hair ; the hinder part of the body tapers a good deal ; 

 the thoracic legs long and thin, and the ventral prolegs 

 well developed, but the larva seems not at ease on a 

 flat surface, being adapted for living in a gallery ; the 

 spiracles small and black. (J. H., 2, 12, 86.) 



ZEUZERA iESGULI. 



Plate XXXI, fig. 1. 



Figured by Mr. Buckler May 2nd, 1861, in a stem 

 of lilac one inch in diameter; October 27th, 1869, from 

 a broken branch of lilac ; the pupa and cocoon July 

 5th, 1875, from poplar. Of this species, plentiful 

 enough about London, I know little ; I have had eggs, 

 but not described them ; in 1874 I had some eggs, 

 which I put about in crevices of the bark of some 



