54 



ZOOLOGY 



horned beetles, "buck-beetles," (or Cerambycidse 1 ), of 

 which about six hundred species are known in North 



America alone. The an- 

 tennae and legs of these 

 beetles are very long. 2 The 

 larvae bore into even the 

 hardest woods, and live in 

 the wood for two or three 

 years. Timber and shade 

 trees are thus greatly dam- 

 aged. A favorite collect- 

 ing ground for Ceramby- 

 cidae is the golden -rod, 

 where the black, yellow- 

 banded locust borer, Cyllene 

 robince (Fig. 59), is pretty 

 sure to be found. 

 Still another destructive family is that of the leaf-eating 

 beetles, the Chrysomelidae, 3 to which the potato-beetle 

 belongs. These beetles are thick 

 and round in shape. They lay 

 their eggs upon the leaves of 

 plants. The larvae feed on the 

 leaves or burrow in the stem. 

 Usually the larva is conspicu- 

 ously colored and exposed, and 

 relies for protection upon its dis- 

 agreeable odor and taste. The 

 most destructive species to agri- 

 culture in the northern United 



FIG. 57. Prionus latlcollis, a long- 

 horn. Black. Nat. size. Photo, by 

 W.H.C.P. 



FIG. 58. Orthosoma bnui- 

 neum, the straight -bodied 

 Prionid. Brown color. Nat. 

 size. Photo, by W. H. C. P. 



;, a beetle with long horns. 2 Figs. 57 and 58. 



3 chrysomela, gold beetle, from xP Vff fa> gold, and /x^Xoi/, apple. 



