Economic entomology for the farmer Economic entomology for the economicentomolo00smit_0 Year: 1896 198 AJV ECONOMIC ENTOMOLOGY. therefore received the popular name Fig. 186. ' tumble-bugs.'' The beetles are usually blackish or bronze brown in color, but sometimes bril- liantly metallic blue, green, coppery, or bronzed, and often we find in the male a prominent, curved horn on the top of the head, and angu- lar processes on the thorax. Other large or moderate-sized spe- cies make holes close to or under droppings in fields, working mostly at night, and leaving evidences of their prese
Economic entomology for the farmer Economic entomology for the economicentomolo00smit_0 Year: 1896 198 AJV ECONOMIC ENTOMOLOGY. therefore received the popular name Fig. 186. ' tumble-bugs.'' The beetles are usually blackish or bronze brown in color, but sometimes bril- liantly metallic blue, green, coppery, or bronzed, and often we find in the male a prominent, curved horn on the top of the head, and angu- lar processes on the thorax. Other large or moderate-sized spe- cies make holes close to or under droppings in fields, working mostly at night, and leaving evidences of their presence in the shape of little piles of fresh dirt next to or even on top of the droppings; cow-dung being the favorite food. These beetles usually have deeply striated wing- covers, are more stockily built than those previously mentioned, and belong mostly to the genus Geotrypes. A series of small, more slender or oblong, black or reddish beetles is often found in considerable num- bers burrowing in or under excre- ment, and these have similar habits and are referable to the genera Aphodius or Atcsnius. Aphodius granarius, much enlarged. r 1 1 ic ^ • Very oiten large, clumsy white grubs' are found in manure heaps, and these are larvae of A 'tumble-bug,' Copris carolma.—a, larva; b, the cell in which it lived ; c, pupa ; d, female beetle; e to i, structural details. Fig. 187.
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