6 P L A T E CX. 



were white become black by the fame procefs ; in this caterpillar we 

 have obferved a fimilar change : a fpecimen which was of a plain green 

 as before defcribed, became fuddenly fpotted with black as fhewn in 

 our plate, that fkin being caft off it afliimed its former appearance 



and became a pupa. 



It feeds on grafs, nettles, &c. near the fides of ditches, and is found 

 fporting in the evening, when in the fly ftate among the grafs and 

 herbage. 



The Caterpillar becomes a Pupa about the beginning of June.— It 

 affixes itfelf by the tail to a ftalk of grafs in the fame manner as thofe 

 of the Butterfly genus, and like them is often found with the head 

 fufpended downwards j it can by a fudden fpring turn itfelf upright 

 again. 



In a little book entitled the Aurelian's Pocket Companion* 

 by Mofes Harris, we find this fpecies defcribed, and called the White 

 Plumed^ but the Linnaean fpecified Name Didattyla is added: — And 

 under the Linnaean name Pentadactyla (our prefent fpecimen) he has 

 defcribed the Broivn plumed*. — The fame confufion is extended to 

 his folio work the Aurelian. In Plate i. he has figured the White 

 plumed under the fpeciftc name Didaityla, and in Plate 30, the Brown 

 plume, under Pentadactyla. Linnaeus has comprifed all thofe Lepi- 

 dopterous Infects whole wings appear to confift of feveral diitinct 

 feathers, connected enly at the fhafts, under the fubdivifion AluEla, 

 but Fabricius has given them the new name Pterophorus, and. 

 added the name Alucitae to a finail divifion of the Tinea, as i'hal. 

 Chriftyloftella, ore. of Linn. 



The Phal. Pentadactyla appears in the perfect ftate about the latter 

 end of June, fometimes earlier. 



* Another fpecimen of the fame divifion of the genus (AluBa) but of a brown 

 •colour " Alis fifijS fufcis, &c," Lain. 



PLATE 



