4 Mr. Becxwitn’s Hifory and Defcriptions of 
fpots, and in a fuperior degree of thinnefs and tranfparency of the 
fkin and humours, through which the inteftines very vifibly ap- 
pear. This circumftance renders it extremely liable to be injured in 
beating from the trees. Its food is the poplar, upon which I have 
repeatedly found it near town about the end of September. In the 
beginning of Oétober it generally prepares for its transformation 
by enclofing itfelf between two leaves, whofe edges it unites by a 
great number of pretty ftrong threads. The Chryfalis, fig. Lu 
of a reddith brown, and of the ufual form. 
The Phalæna, fig. 6. is produced from it about the end of May 
or beginning of June in the next year. 
Defcr. Phal. Noctua Gemina. Spirilinguis criftata, alis fuperioribus 
| cinereo-fufcefcentibus, fafciis duabus ftrigofis maculifque 
duabus niveis intermediis. 
Expanfio alarum, 1 unc. 2 lin. 
Bafis alarum fuperiorum cinereo-fufcefcens; intra medium 
fafcia lata e ftrigis quatuor nigris confecta; in ipfo medio 
maculæ duæ nivez, interior orbicularis, exterior fubrotunda 
poftice biloba; extra medium fafcia e ftriis fub tribus mundus 
latis; in apice marginis antici lineola obliqua nigra. Alz 
inferiores fufcefcentes fuperioribus pallidiores. 
The larva, fig. 7. has the back and belly of a pale livid colour; 
along the middle of the back is a row of white rhomboidal fpots, 
one in each fegment ; the fides are of a dark brown, the lower ex- 
tremity being edged with a white line. I have met with it near 
the roots of willow trees, concealed under the earth or tufts of 
grafs, on removing of which it is difcovered: it afcends thefe trees 
in the evening to feed upon the leaves, and returns in the morning 
to its place of retirement, remaining the whole of the day concealed, 
This conftant praétice is probably to avoid the attacks of Ichneu- 
4 , mons 
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i i Oe Trepi OM aere corto emet 
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