Elementary entomology ([c1912]) Elementary entomology . elementaryentomo00sand Year: [c1912] i6o ELEMENTARY ENTOMOLOGY large one and includes many serious pests, such as the round- headed apple-tree borer and others with similar habits. Three com- mon blackish species, brilliantly striped with yellow (Fig. 234), are known as locust-borer, hickory-borer, and sugar- maple-borer, after their respective food plants, which are frequently killed from the work of their larvae. Among our largest beetles are the prionids, the larvae of which infest the roots of various fruit and shade trees and herbac
Elementary entomology ([c1912]) Elementary entomology . elementaryentomo00sand Year: [c1912] i6o ELEMENTARY ENTOMOLOGY large one and includes many serious pests, such as the round- headed apple-tree borer and others with similar habits. Three com- mon blackish species, brilliantly striped with yellow (Fig. 234), are known as locust-borer, hickory-borer, and sugar- maple-borer, after their respective food plants, which are frequently killed from the work of their larvae. Among our largest beetles are the prionids, the larvae of which infest the roots of various fruit and shade trees and herbaceous plants. The broad-necked prionus is from one to two inches long, pitchy black, with the thin margin of the prothorax toothed, as shown in Fig. 232. The oak- FIG. 232. The giant root-borer (Prionus laticollis) (After Riley) primer is a slender, brown species, about three fourths of an inch long, which lays
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