. A manual for the study of insects. Insects. 592 THE STUDY OF INSECTS, (Thec-e-ster'nus hu-mer-a^lis), of the central portion of the United States. It usually lives near the surface of the ground, but has been found attacking grape-vines and hick- ory. It is a grayish beetle, one third to one half inch in length, and with its wing-covers roughened by rows of tu- bercles. Its distinctive structural characters are given in the table of families. Fanaily OxiORHYNCHID^ (0-ti-o-rhyn'chi-dse). The Scarred Snoitt-beetles, This is one of the larger of the families of snout-beetles, including th


. A manual for the study of insects. Insects. 592 THE STUDY OF INSECTS, (Thec-e-ster'nus hu-mer-a^lis), of the central portion of the United States. It usually lives near the surface of the ground, but has been found attacking grape-vines and hick- ory. It is a grayish beetle, one third to one half inch in length, and with its wing-covers roughened by rows of tu- bercles. Its distinctive structural characters are given in the table of families. Fanaily OxiORHYNCHID^ (0-ti-o-rhyn'chi-dse). The Scarred Snoitt-beetles, This is one of the larger of the families of snout-beetles, including than one hundred North American species. The most distinctive characteristic of these insects is the presence in the pupa state, and sometimes also in recently matured adults, of an appendage on each mandible, and in the adult state of a scar indicating the place from which the appendage has fallen. This scar is on the anterior face of the mandible, and frequently at the tip of a slight process. Many species of this family are beautifully ornamented with scales which resemble in a striking manner the scales on the wings of butterflies. Among the more important species are the following : Fuller's Rose-beetle, ^r^;;^^^//^"/////^ (A-ram'i-gus fuTle- ri).—This is an oval, black snout-beetle, lightly covered with dark-brown scales, and about one fourth inch in length. It is very destructive to roses ; the larvae feed upon the roots, and the adults de- stroy the leaves, flowers, and buds. In Cali- fornia It is sometimes a pest in orange-groves. The Imbricated Snout-beetle, Epiccerits im- bricattts (Ep-i-cse'rus im-bri-ca^tus) is usually a Fig. 723. dull, silvery-white beetle with brown markings ; but the species is quite variable in color. It is represented somewhat enlarged by Figure 723. It is omnivorous, gnaw- ing holes in various garden vegetables and fruits, and in the bark of trees and Please note that these images are extracted from scanned page images that may


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895