File:Image from page 073 of "Introduction to zoology; a guide to the study of animals, for the use of secondary schools;" (1900) (14781823741).jpg

Identifier: introductiontozo00dave Title: Introduction to zoology; a guide to the study of animals, for the use of secondary schools; Year: 1900 (1900s) Authors: Davenport, Charles Benedict, 1866-1944 Davenport, Gertrude Anna Crotty, 1866- Subjects: Zoology Publisher: New York, Macmillan company London, Macmillian and co., ltd. Contributing Library: MBLWHOI Library Digitizing Sponsor: MBLWHOI Library

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Text Appearing Before Image: beetles, buck-beetles, (or Cerambycidse1), ofwhich about six hundred species are known in North America alone. The an-tennae and legs of thesebeetles are very long.2 Thelarvae bore into even thehardest woods, and live inthe wood for two or threeyears. Timber and shadetrees are thus greatly dam-aged. A favorite collect-ing ground for Ceramby-cidre is the golden-rod,where the black, yellow-banded locust borer, Cyllenerobince (Fig. 59), is prettysure to be found.Still another destructive family is that of the leaf-eatingbeetles, — the Chrysomelidre,3 to which the potato-beetlebelongs. These beetles are thickand round in shape. They laytheir eggs upon the leaves ofplants. The larv?e feed on theleaves or burrow in the stem.Usually the larva is conspicu-ously colored and exposed, andrelies for protection upon its dis-agreeable odor and taste. Themost destructive species to agri-culture in the northern United FIG. bl. — Prlonus laticollis, a long-horn. Black. Nat. size. Photo, byW.H.C.P.

Text Appearing After Image: FKJ. 5 gold, and /^Xoy, apple. THE BEETLE AND ITS ALLIES 55 States is the ten-lined Colorado potato-beetle, Doryplwra1decemlineata. Until about 1859 this species fed upon thesand-bur {Solatium rostratmiri), at the eastern base of theRocky Mountains and south into Mexico.With the advent of settlers and the plant-ing of the cultivated potato (Solanumtuberosum, a native of Mexico), this morethrifty, cultivated species was adopted asits food-plant, and the potato-beetle beganits eastern migration. It spread slowly atfirst, but within fifteen years had reachedthe Atlantic coast. The little red, yellow,and black asparagus-beetle, the yellow,black-striped cucumber and melon beetle,the tortoise-beetle, whose broad, iridescent,translucent elytra are conspicuous on theleaves of the morning-glory, nettle, an

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