116 THE CANADIAN ENTOMOLOGIST. 



beetle, but the Pelidnota has been taken occasionally in the neighbour- 

 hood, usually on the cultivated grapevine, but once or twice on wild vines 

 some miles north of the town ; it does not appear to be at all frequent 

 east of Toronto. 



I mentioned at the outset of my paper the Buprestids as a family 

 peculiarly fond of basking in the sun. There are two genera of Buprestid 

 that eat leaves, Agrihis and Brachys. The first of these is a long, narrow 

 beetle, taken occasionally on the leaves of basswood, but more common on 

 the foliage of raspberries. The larva bores in the stem of the raspberry. 

 A curious feature about the Ag?-ilus is that in appearance and shape, as 

 well as in some of its movements for escape or to elude observation, it 

 closely resembles the longicorn beetle Oberea ; moreover, the habits and 

 life-history of the two beetles are almost identical ; they both lay their 

 eggs in raspberry stems, where the larva bores and feeds, and they both in 

 maturity resort to the leaves of the plant as a resting place and occasionally 

 for food. 



The genus Brachys is a short form of beetle, almost as broad as it is 

 long, the species I have most commonly found being Brachys cerosa ; it 

 is not uncommon on basswood and tvvo or three other forest leaves, but I 

 have usually found it feeding on the foliage of a hazel ( Corylus rostrata), 

 where it is sometimes abundant. It is stated in Sharpe's article on insects 

 in the Cambridge Natural History, that some of the smaller kinds of 

 Buprestid have been discovered to feed on the parenchyma of leaves. I 

 know nothing about the larval habit of Brachys, but arguing on analogy 

 from Agri/us, I would hazard the guess that the larva is a leaf-miner on 

 hazel or other forest leaves. 



In drawing a parallel between Agrihis and Oberea, I referred to both 

 form and habit. The form of Brachys, short and broad and somewhat 

 flat, suggests the form of Odontota, a leaf-miner among the Chrysomelians ; 

 in habit, since the mature beetle of Agrihis responds to the same food 

 stimulus as its larva, the eating of hazel and other leaves by the Brachys 

 beetle may mean that the larva mines in such leaves. (Vide; Can. Ent., 

 1887, XIX, 159. 



I have found a great many instances among the Coleoptera where the 

 mature insect seems to be affected in a greater or less degree by the same 

 stimulus as tiie larva. Perhaps the sight of the larva's food-plant strikes 

 on some happy chord of childish recollection in the mature beetle. 



