AMORPHA POPUL1 477 



buried, but were unchanged on August 30th, September 1st, 6th, 1887, 

 at Clapton on willow (James) ; August 4th, 1891, at Bedford, larva 

 pupated August 9th (Steuart) ; late wet season of 1891 affected 

 larvae to such an extent that some were quite young in September, 

 these fed up till leaves began to fall, when larvae were about half- 

 size, lingered on into November, and died of starvation, the 

 trees having lost their leaves (Adkin) ; August 26th, 1894, 

 on poplar at Worcester Park, the number of Sphingids noticed 

 in 1894 was remarkable (Kaye) ; larvae fullfed, September 

 17th, 1894, September 24th, 1895, August 5th-27th, 1900, at Sud- 

 bury (Ransom) ; larvae taken at Great Yarmouth on September 29th, 

 1895 (Miller); July 20th, 1896, on osier at Whitwell, July 22nd- 

 August 8th, 1897, on poplar at Prescot (Freeman); ova, July 3rd, 



1897, hatched July 16th, fed up on poplar, commenced to pupate Sep- 

 tember 7th, all but one in pupal stage on September 21st, at Middles- 

 borough (Lofthouse) ; July 30th, 1898, at Knowsley Park (Cotton) ; 

 larvae August 14th, fullfed September 3rd, 1898, also fullfed on poplar 

 on September 12th, 1899, in Sulby Glen, fullfed from Cranstal Loch 

 on September 3rd, 1900, on sallow (Clarke); crawling on ground 

 fullfed on October 3rd, 1895, still feeding but fullgrown at 

 Reigate, September 13th, 1900 (Prideaux); eggs deposited July 

 2nd, 1899, hatched July 13th, larvae all fullfed by August 30th 

 at Weymouth, larvae July 16th, 1899, at Weymouth, August 6th, 



1898, at High Wycombe (Peachell) ; 3 larvae taken at Halliwell on 

 August 22nd, 1899, the first one buried on August 25th (Whittaker) ; 

 September 9th, 1899, at Forest Gate, quite a small larva taken 

 in autumn of 1900, when nearly all the leaves had fallen, and it 

 would have been quite impossible for it to have fed up (Mera) ; 

 in 1900 ova did not hatch till June 25th, and the first larva pupated 

 July 30th, in the Dorking district, but 125 eggs were laid by a second- 

 brood 2 between July 26th~3oth, and larvae emerged August 5th, 

 &c, in 1901 (Oldaker). 



Larva *. — First stadium : Much larger than the larva of either 



Mimas tiliae or S. ocellata; short and thick by comparison with 



S. ocellata ; the head large ; roughly triangular in outline, but 



rounded at top ; the segmental incisions well-marked, but not so 



conspicuously as in M. tiliae; the scutellum distinct (a noticeable 



character in all the later stadia) ; the caudal horn green, of the 



same tint as the rest of the body, about one-third the length of 



the larva, and it appears to be slightly movable at will; the oblique 



and subdorsal stripes present though not very distinct ; the prolegs 



markedly well-developed. When fullfed in this stadium, the lines 



down the sides of the head are distinct, the oblique lateral body 



stripes markedly so, the subdorsal also clearly defined and 



continued as far back as the base of the caudal horn ; there are 



also two spots on the dorsal area of the 2nd, 3rd, 4th and 5th 



abdominal segments, which are elongated into short stripes on 



the 5th. Second stadium : The head distinctly triangular in outline, 



but neither so long nor so pointed as in S. ocellata ; the scutellum 



has along the front a border of yellow mammillae, forming a ridge 



just behind the head ; the 1st and 7th pairs of oblique stripes are 



* Described in detail fantea, pp. 387 —389) and compared with larvae of Mimas 

 tiliae and Smerinthus ocellata. 



