. A manual for the study of insects. Insects. 568 THE STUDY OF INSECTS. hardest wood. The larval state usually lasts two or three years. The pupa state is passed within the burrow made by the larva; frequently a chamber is made by partitioning off a section of the burrow with a plug of chips ; but some- times the larva builds a ring of chips around itself just beneath the bark before changing to a pupa. The pupal state is comparatively short, lasting only a few days or weeks. This family comprises three subfamilies, which are sep- arated by Le Conte and Horn as follows:—- A. Sides of the proth
. A manual for the study of insects. Insects. 568 THE STUDY OF INSECTS. hardest wood. The larval state usually lasts two or three years. The pupa state is passed within the burrow made by the larva; frequently a chamber is made by partitioning off a section of the burrow with a plug of chips ; but some- times the larva builds a ring of chips around itself just beneath the bark before changing to a pupa. The pupal state is comparatively short, lasting only a few days or weeks. This family comprises three subfamilies, which are sep- arated by Le Conte and Horn as follows:—- A. Sides of the prothorax with a sharp margin, p. 568. Prion iNiE. AA. Prothorax not margined. B. Front tibiae not grooved ; palpi never acute at tip. p. 569. Cerambycin^. BB. Front tibiae obliquely grooved on the inner side; palpi with the last segment cylindrical and pointed, p. 572 Lamiin^e. Subfamily Prionin^ (Pri-o-ni'nae). The Prionids {Pri -0'nids). The larger of the Long-horned Beetles constitute this subfamily. They are distinguished from other Cerambycids by having the sides of the prothorax prolonged outwards into a thin margin, which is more or less toothed. The wing-covers are usually leathery m appearance, and of a brownish or black color. The following are our best-known species:— The Broad-necked Prionus, Pri- 071US lalicollis (Pri-o^ius lat-i-coF- Hs).—This is the largest of our common species; but the individ- uals vary from less than one inch ^'^- ^91. to two inches in length. It is of a pitchy-black color, and of the form shown in Figure 691. The antennae are twelve-jointed in both sexes. The larva. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. joint author. Ithaca, N. Y. , Comstock Pub. Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
