182 GRAPTA C-ALBUM. 



Grapta C-ALBUM. 

 Plate IX, fig. 3. 

 (See ante, p. 57.) 



With this species in its earlier stages I had no ac- 

 quaintance until this autumn, when on September 18th 

 Mrs. Hutchinson kindly sent me a pupa, and next day 

 Miss Preston Decie sent me two larvse feeding on hop ; 

 and this small supply was obtained with difficulty, 

 some enterprising collector having circulated adver- 

 tisements in the local papers of the hop-growing 

 districts in Herefordshire and Worcestershire, as well 

 as posting placards in the villages, to offer to take all 

 the larvae and pupae the hop-pickers could find, at a 

 certain rate ! The two larvae became pupae on Sep- 

 tember 25th and 26th respectively. At the time of 

 my present writing all three pupae show signs of the 

 butterfly being nearly ready to appear. Mrs. Hutchin- 

 son tells me the latest date for its emerging which she 

 has known is November 5th. (On examining the cage 

 again I find one butterfly just out.) 



The full-grown larva is about 34 mm. long, cylin- 

 drical, the segments well cut; the head is horny with the 

 face quite flat, each lobe armed with a short horn, the 

 tip of which is set with hard warts; the second seg- 

 ment about as wide as the head, with a transverse row 

 of bristle-bearing warts ; the other segments bear seven 

 rows of branched spines in the following order : eight 

 dorsal on segments 5 to 12 ; twelve subdorsal on 

 segments 3 to 13, both pairs on 13 may be said to 

 belong to this row; ten lateral on segments 3 to 12, 

 and eight spiracular on segments 5 to 12 ; the dorsal 

 spine on each segment is in advance of, and the sub- 

 spiracular spine behind the others. The ground colour 

 is black dotted with red, the head black ; the second 

 segment has a fine red dorsal line ; segments 3 to 6 

 have each a transverse red patch on the back, and the 



