` four new Species of Pbalena. E To 
mons or other enemies. If fo, it is not always fuccefsful; for 
though I took feveral in the years 1785 and 1786, yet in the year 
1787, out of twenty larve which I procured, but one Phalæna was 
produced, the remainder appearing to have been deftroyed by 
Ichneumons, which had permitted them to enter the earth, and 
undergo their metamorphofis, as I found moft of the chryfalides 
dead, with their cruftaceous coverings fwelled and diftorted, and 
a fingle large filky cone within each of them. I was not for- 
tunate enough to breed any of the Ichneumons. 
Frequent opportunities occurred of obferving that the fame 
ceconomy of feeding only in the night, fubfifted among thefe ca- 
terpillars in the cages in which they were kept for breeding, as in 
the night time they were always diftributed over the leaves placed 
for their food ; but during the day appeared to be all loft, except 
one or two which were occafionally feen; and this I accounted for 
from the cages admitting the light but faintly. 
Thefe caterpillars arrived at their full growth the laft weck in 
May, when they changed in the earth to flender brown chryfalides, 
one of which. is fhewn at fig. 8. The moth, fig. 9, came out the 
end of June. 
Defcr. Phal. Noctua Pulla. Spirilinguis criftata, ne deflexis 
fuperioribus fufco-ferrugineis fubnebulofis ftriga alba un- 
dulata. 
Expanfio alarum, T unc. 4 lin. 
Alz fuperiores ex fufco dilute ferrugineæ nigroque fubne- 
» buloíz. In medio verfus marginem craffiorem due maculæ: 
+” quarum interior fubrotunda, exterior reniformis albido ob- 
foleté cinéte; linea alba undulata prope marginem exte- 
riorem. Alæ inferiores cinereæ. Anus barbatus. 
Fig. 10. is a larva of a beautiful green colour; through 
the trànfparent fkin and humours the inteftines are con- 
_fpicuoufly. 
