. A manual for the study of insects. Insects. 584 THE STUDY OF a. ivj. 7 the body and discharging an oily fluid from it. They present an absurd appearance, walking off clumsily, and carrying the hind end of the body as high as possible. The most common species are large, smooth, club-shaped beetles (Fig. 712), and are commonly known as Pinacate-bugs. These beetles and those belonging to several closely allied genera are wingless. The family ^GIALITID^ (^-gi-a-lit'i-dae) was founded upon a single species from Alaska; recently another has been found in California. The family ClSTELID^
. A manual for the study of insects. Insects. 584 THE STUDY OF a. ivj. 7 the body and discharging an oily fluid from it. They present an absurd appearance, walking off clumsily, and carrying the hind end of the body as high as possible. The most common species are large, smooth, club-shaped beetles (Fig. 712), and are commonly known as Pinacate-bugs. These beetles and those belonging to several closely allied genera are wingless. The family ^GIALITID^ (^-gi-a-lit'i-dae) was founded upon a single species from Alaska; recently another has been found in California. The family ClSTELID^ (Cis-teri-dae) in- cludes about fifty North American species, some of which are quite common. These are brownish beetles, without spots, which are found on leaves and flowers and under bark. The body is usually elongate, elliptical, and quite convex. They are most easily distinguished from allied families by the tarsal claws being pectinate, and the anterior coxal cavities closed behind. The larvae of some of our species at least live in rotten wood and resemble wire-worms in appearance. The family Othniid^ (Oth-ni'i-dae) is represented in our territory by four species of Othnius (Oth'ni-us), one from the East and three from the far West. They are small beetles, which are found running actively on the leaves of trees, and are probably predaceous. In this family the an- terior coxal cavities are closed behind, and none of the ab- dominal segments are grown together on side. The family Lagriid^ (La-gri'i-dae) includes only five North American species, all of which are from the East, and are found under bark and on leaves. They are elongate beetles, with a narrow, subcylindrical prothorax, and a more or less brassy color. Our most common spe- cies is Arthroniacra cenea (Ar-thro-ma'cra ae'ne-a). This species is nearly half an inch in length (Fig. 713). The family MONOMMID^ (Mo-nom'mi-dae) is rep- ^'''- ^'3- resented in this country by a single genus, including four. Ple
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
