562 
THE STUDY OF INSECTS . 
These beetles are usually polished, and many of them are of 
brilliant colors. To this family belong the most beautiful 
beetles known, many appearing as if made of burnished 
gold or silver, or other metal. 
The Goldsmith-beetle, Cotalpa lanigera (Co-tal'pa la- 
nig'e-ra).—This is one of our most beautiful species. It 
measures a little less than one inch in length, and is a broad 
oval in shape. It is of a lemon-yellow color above, glittering 
like burnished gold on the top of the head and thorax; the 
under side of the body is copper-colored and thickly covered 
with whitish wool. 
The Spotted Pelidnota, Pelidnota punctata (Pel-id-no'ta 
punc-ta'ta).—This beetle is reddish brown 
above, with three black spots on each wing- 
cover and one on each side of the prothorax 
(Fig. 681). The scutellum, base of the head, 
and the entire body beneath are of a deep 
bronzed-green color. The adult is commonly 
found feeding on the leaves of grape. The 
larva feeds upon decaying roots and stumps of 
various trees. 
The Light-loving Anomala, Anomala lucicola (A-nom'a-la 
lu-cic'o-la).—This also feeds on the leaves of grape. It 
resembles the preceding species in form, but is much smaller, 
measuring onlyabout one third inch in length. It is of a pale 
dull yellow color; the prothorax is black, margined with 
dull yellow, and the hinder part of the head and the ventral 
side of the body are also black; sometimes the abdomen is 
brown. As this beetle appears early in the summer, it can 
be safely destroyed with Paris-green, for the subsequent 
rains will wash the poison from the vines before the fruit 
ripens. 
IV. The Rhinoceros-beetles. —The name rhinoceros-beetles 
was suggested for this group by the fact that in many species 
the male bears a horn on the middle of the head. In addi¬ 
tion to this horn there may be one or more horns on the 
