54 



punctures ; d, same natural size ; e, the egg enlarged ; /, head of larva, underside ; g, 

 head of male beetle ; h, jaw of same ; i, eggs natural size, showing the curious manner 

 in which they are attached to leaves ; j, leg of larva; k, jaw of same; ?, maxillae of same. 



The genus Chlamys contains beetles differing greatly in general appearance from 

 those previously described. They are short and thick set, resembling when at rest dried 

 buds or bits of bark on account of their curiously knobbed and wrinkled elytra and 

 thorax. The larva (Fig 60) like that of the preceding species 

 constructs for itself a sac which it bears about with it while 

 feeding on the leaves, like a snail carries its shell. The larva FfT^ T 

 (figure a) is a small fjtout grub, having the posterior end R^nr-^ 1 

 recurved in the sac, from which the head and legs protrude. 

 The case is composed of small pellets of vegetable matter. 



Chlamys plicata, Fab., "is a little oblong, cubical, roughly -^'S- *^^' 



shagreened, metallic greenish beetle, found in abundance upon leaves soutliward." A 

 variety known as C. polycocca, Lac, is found here in June, and is of a dull brown 

 or coppery colour. 



Monachus saponatus, Fab., is an almost globular steel-blue beetle, one-tenth of an 

 inch long, taken upon alders and plants growing in low woods and meadows. 



The genus Cryptocephalus contains a great number of small cylindrical beetles, 

 having the head withdrawn in the thorax, whence the generic name signifying " buried 

 head." The larvae, like those of Coscinoptera and Chlamys, are case-bearers. 



C. maculatus, Say, is a bluish-black beetle, one fifth of an inch long, with an orange- 

 red spot on the tip and shoulder of each wing-cover. They are abundant throughout the 

 summer on pines, and less frequent on other trees. 



C. hUeipennis Mels., is a smaller species, having orange wing-covers, which is very 

 abundant upon willows. 



Pachybrachus is another extensive genus of Sinall cylindrical beetles, having the 

 head less retracted within the thorax. P. irideiis, Mels., prettily mottled with yellow 

 and brown ; appears in numbers upon willows. 



Another beetle frequently found upon willows is Adoxus vitis, Linn., a black insect 

 of robust form, and about one-fourth of an inch long ; the elytra are a dark reddish- 

 brown. The word vitis being the Latin for vine, this beetle may, perhaps, be found upon 

 grape-vines, although I do not remember to have seen any statement to that elSPect. 



The next member, under present classification, of the Chrysomelidas is Fidia viticida, 

 Walsh, the Grape-vine Fidia (Fig. 61), which also derives its name from 

 the same source. It is slightly longer than the preceding species, but of 

 very similar shape ; its colour is chestnut-brown, and it is covered with 

 short whitish hairs, giving to it a hoary appearance. It is very injurious 

 to grape-vine leaves in the Western States, riddling them with large 

 holes, and when numerous reducing them to mere shreds. 



Gly2)toscelis pubesceyis, Fab. (Jiirtus, Oliv.), is a coppery, and, as its name 

 denotes, pubescent or hairy beetle, the hairs not being very close. It is one 

 third of an inch long, and appears upon the leaves of pines in May and June. 



Upon Dog's-bane and Indian hemp, about the end of July, may be found numbers 

 of a very beautiful beetle named Chrysochus auratus, Fab., both names signifying golden. 

 Its colour is a brilliant green, when seen in a dull light, but when crawling upon the 

 plants under a bright sun the colours are irridescent, and they appear like rubies and 

 emeralds upon the leaves. 



Paria aterrima, Oliv., common here upon different plants, is said by Prof. J. A. 

 Cook (Michigan) to be very destructive to strawberries, for though small they are so 

 numerous and voracious as often to defoliate the plants. The larvae are white, with 

 yellowish heads and brown jaws, are about one-fifth of an inch long, and transform in a 

 small, spherical, earthern cocoon. The beetle is about one-eighth of an inch long, and 

 varies in colour, some being all black, while others — perhaps the greater number — have the 

 head, antenna?, legs and wing-covers yellowish, the latter having each two black spots. 

 They may be destroyed by applications of Paris green or London purple, but these 

 poisons should not be used after the berries have formed. 



