+ 



I 



% 



146 Harris upon the Economy of some 



red lines, and the furrows between them have double 

 series of large transverse punctures. The body beneath 

 except at the sides, is black, and the feet are testaceous 

 yellow. 



Variety, (H. quercifolice) . Testaceous or ochreous 

 yellow ; sides of the thorax, two lines on the disk, and 

 ^bout eleven short lines on the elevated ridges and mar- 



i 



gins of the elytra blackish red. Body beneath testace- 

 ous ; feet pale ochreous yellow* 



Differs from the H. rosea in being paler, v/ith much 

 darker lines. The anterior margin of the thorax is im- 

 maculate ; the dorsal lines are as deeply colored as the 



sides ; and the breast and abdomen are not black. 



Towards the end of July, 1829, 1 discovered some lar- 

 vae within the leaves of the Robinia pseudacdcia^ which 

 differed in appearance so much from those of the oak 

 leaf that I had no doubt of their belonging to different 

 species. In form they were more elongated and not so 

 much depressed ; the body was not so broad before, and 

 the lateral tubercles were more acuminated and directed 

 backwards, so as to give the sides of the body a serrated 

 appearance. In other respects they agreed with the pre- 

 viously discovered species. 



The pupae [Fig. 2.] were exceedingly [Fig. 2.] 

 active, and moved about, when disturbed 

 in their cavities, backwards and forwards, 

 by an upward and dowTiward action of 



■ 



the abdominal segments. The pupa state 

 lasted seven days, and on the twelfth of 

 August I had the pleasure of seeing the 

 perfect insects iu the box in which they 

 had been raised- They proved to be the 

 HisPA suturalis of Fabricius, which may 

 be thus described. 



