COLEOPTERA: SCARAILEID.E. 425 



The Genus Gcotrnpcs embraces large green or purplish 

 species, known as Earth-borers. Melolontha and its allies 

 include the Leaf-eaters, which have powerful and horny 

 jaws, fitted for cutting and grinding leaves. 



The Genus Macrodactylus contains the Rose-chafers. 



The Common Rose-chafer, M. subspinosa, Fabr., is 

 seven twentieths of an inch in length, and is covered 

 with very short and close ashen down ; legs pale red. 



The Genus Lachnosterna contains the May-Beetles. 



The May-Beetle, L. qucrcina, Knoch, is nine tenths of 

 an inch long, chestnut-brown, smooth, but finely punc- 

 tured, and each wing-case has three slightly elevated 

 longitudinal lines ; breast clothed with yellowish down. 

 The grub is white, with a brownish head, attains almost 

 the size of our little finger, and feeds upon grass roots. 



The Genus Pclidnota contains the Spotted Pelidnota, 

 P. punctata, Fabr., which is about an inch long, oval, red- 

 dish-yellow, with three black spots on each elytron, and 

 the thorax with a black dot on each side. 



The Genus Cotalpa contains the splendid Goldsmith- 

 Beetle, C. lanigera, Linn., which is Fi 

 nearly an inch long, lemon -color 

 above, and glittering like burnished 

 gold on the head and thorax ; under 

 side copper-colored, and covered with 

 whitish wool. It appears in spring and 

 early summer. It flies in the morning 

 and evening twilight, feeds upon ten- 

 der leaves, and clings to the under G ddsmith Beetle, cT/- 

 side of the leaves during the day. 



The Genus Dynastes contains the Hercules Beetles of 

 South America, which are five inches long. 



The Genus Cctonia Flower-Beetles has the form 

 oblong oval, lower jaws soft on the inside, and often pro- 

 vided with a flat brush of hairs, upper jaws without a 



