274 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
47. Geometrid caterpillar. 
This span worm, which exactly resembles a small twig of the elm, 
occurred at Brunswick, Me., August 20. It did not complete its 
transformations, as a small Ichneumon came out of the end of the 
body. 
Lamm, — Body cylindrical, smooth, slightly wrinkled. Head cleft, but the lateral 
tnberolefl are not very high, subacute, quite regularly conical. Prothoracic segment 
slightly wider than the head; square in front, edge touched with light dull white. 
Fifth abdominal segment with two conspicuous rounded conical tubercles concolor- 
oiis with the body, which is reddish brown — just the tint of a small elm twig. Penult- 
imate segment a little humped and rough and dark. Supra-anal plate triangular, 
rather acute ; surface rather rough, a little granulated. Anal legs very broad and 
rather short and with the dorsal spines rather broad; hind edge of legs and spines 
edged with fine seta3 like a fringe. Front part of each abdominal segment lighter, 
being marbled or speckled with dark on a somewhat lilac ground, but these patches 
are scarcely well enough marked to give the body a checkered appearance. Full- 
fed, August 20 to 25. Length, 25 mm . 
48. The goldsmith beetle. 
Cotalpa lan'ujera Liun. 
Order Coleoptera ; family Scarabjeid.e. 
This beetle is nearly an inch in length, bright yellow above, with a 
golden metallic luster on the head and thorax, while the under side of 
the body is copper-colored, and densely covered with white hairs. 
Dr. Harris says that it is very common, remarking that it begins to 
appear in Massachusetts about the middle of May, and continues 
generally till the 20th of June. " In the morning and evening twilight 
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 sub- 
ject to their attacks, but the 
elm, hickory, poplar, oak, and 
probably also other kinds of 
trees, are frequented and in- 
jured by them." Dr. Lock wood 
has found it on the white pop- 
lar of Europe, the sweet-gum, 
and has seen it eating the Law- 
ton blackberry. He adds that the larvoe of these insects are not 
known ; probably they live in the ground upon the roots of plants. 
It has remained for the Kev. Dr. S. Lockwood to discover that the 
grub or larva of this pretty beetle in New Jersey devastates straw- 
berry beds, the larva feeding upon the roots, in the same manner as 
the May beetle. His account was first published in the American 
Fig. 107 —The Goldsmith beetle and larva. 
