. British insects : a familiar description of the form, structure, habits, and transformations of insects. British Beetles, an Introduc-tion to the Study of our Indigenous Coleoptera, by E. C. Eye. ORDER I.—COLEOPTERA. 65 three and four-jointed; a minute and concealed additionaljoint existing in both cases. The form and clothing of the joints of the tarsi areto be noted in the examination of beetles. The antenuse pjg_ 31 are next to be ob-served. Some areslender and taper-ing, or thread-like, {filiform, , 1) ; othersthickened towardsthe free end, andclub-shaped {cla-vate) ; or knob-bed {
. British insects : a familiar description of the form, structure, habits, and transformations of insects. British Beetles, an Introduc-tion to the Study of our Indigenous Coleoptera, by E. C. Eye. ORDER I.—COLEOPTERA. 65 three and four-jointed; a minute and concealed additionaljoint existing in both cases. The form and clothing of the joints of the tarsi areto be noted in the examination of beetles. The antenuse pjg_ 31 are next to be ob-served. Some areslender and taper-ing, or thread-like, {filiform, , 1) ; othersthickened towardsthe free end, andclub-shaped {cla-vate) ; or knob-bed {capitate, 2).In some the last,joints are flat andleaf-like {lainel-late), attached to-gether at one endand opening andclosing like a fan(fig, 31,5); while inothers these jointsare thick, andrauchlarger on one sidethan on the other, forming a knob or club with deep fis-sures {fissate, 6). In some the antennae are slender and toothed moreor less deeply, like a saw {serrate, 7), or a comb {pecti-nate, 8) ; and in others the joints present the appear-ance of a string of beads {moniliform). When the knob. 1. Filiform. 2. Capitate. 3. Perfoliate club. 4. Geniculate. 66 INSECTS. is formed of thin, flat, distinct joints, as at fig. 31, 3,it is called ^irt*^, and when the antennae form anangle, as at 4 and 6, it is geniculate, kneed or elbowed. In beetles of the Section Pentamera the antenngegenerally afford some indication of the habits of theinsects, though exceptions are numerous. Thus, thosewith slender, filiform antennae are mostly found to feedon living insects. Those with club-shaped anteunge ondead animal or vegetable matter; those with lamellateand fissate clubs, and also those with slender serrateantennae, on living plants. The Pentamerous beetles are divided into four Sub-sections.* The first is Adephaga (AStj^oyoc, adephagos, raven-ous), and contains predaceous beetles, both land andwater, which have long horns and two pairs of
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