ZG yee oe ere ek E TE ay 
ees wae ah ie 
Ny An 
CENE ee 
PN E i ee T E 
a Naan Ree Poe el: TE a ELA ol a A 
TEN BREN e Re oa ONAN T A e aa ke ee ae ea ANS 
INJURIOUS AND BENEFICIAL INSECTS. 531 
they come forth from their retreats, and fly about with a humming 
and rustling sound among the branches of trees, the tender leaves 
of which they devour. Pear trees are particularly subject to their 
attacks, but the elm, hickory, poplar, oak, and probably also other 
kinds of trees, are frequented and injured by them.” Dr. Lock- 
wood has found it on the white poplar of Europe, the sweet-gum, 
and has seen it eating the Lawton blackberry., He adds that-the 
larvæ of these insects are not known; probably Shey: live in the 
ground upon the roots of plants. 
It has remained for the Rev. Dr. S. Lockwood to discover that 
the grub or larva of this pretty beetle in New Jersey devastates 
strawberry beds, the larva feeding upon the roots, in the same 
manner as the May beetle. His account was first published in 
the American Naturauisr (vol. ii, pp. 186,441). He says that 
in the month of May in the ordinary culture of his garden the 
spade has turned up this beetle generally in company with the 
May beetle. He found that some of the beetles, as in the case of 
the May beetle, assume the adult beetle state in October and 
remain underground for seven months before appearing in the 
spring. 
Larva. The larvæ (fig. 140) he describes as “whitish grubs, about one inch and 
three-qna rters long and over half an inch thick, with a yellowish-brown scale on the 
part corresponding ee the thorax. » n may a add t ns it so a preg oa embles the young 
of the May to tell the part. The propor- 
tions of the s are much “the e same; if anything the oo. es amen shorter and 
thicker, and its body is covered with short, stiff hair, especially at the end, while in 
the May a the hairs are much finer, sparse, and the skin Fig. 140, 
i e in the 
nin 
the latter grub, a the fourth and fifth are of - same mmr Sank of the the Goldsmith 
tive length as in the May beetle, but much thicker. The j 
oe are mc alike in both, but not pe so oak in the Peal as in the 
other, nor are the inner teeth so prominent. The maxilla is much longer and with 
stouter spin es, and an palpi are lon nger and slenderer in the gru of than in 
the edhe though the j basal joint 
is aha y — be long as in the May beetle. The “under lip (abinm) = throughout 
in tne grab of Cota than in that of the Doa ama The feet are much larger and 
re hairy in the a h larvæ Ae a aaa ah a and a third 
(33) of an inch thick at the Tirem part. 
As regards the number of years in the life of this insect, Dr. 
