Fam. 1. Dipteroid Beetles—Rhyncophora.
Head rhynchiform or snout-shaped, tarsi tetrameral.
Fam. 2. Hymenopteroid Beetles, Blattkäfer.
Head tolerably short as well as the antennæ, tarsi tetrameral.
Fam. 3. Lepidopteroid Beetles, Holzkäfer.
Head pretty short, antennæ very long, tarsi tetra-and pentameral—Borkenkäfer, Holzbohrer and Schröter.
Order 8. Dictyopteroid Beetles—Zoophaga.
3528. Body long and depressed, antennæ short, maxillæ large with pointed teeth, feet mostly pentameral and without ungues.
They subsist upon living or dead animals, dwell usually in water or upon dry land, and run very swiftly. The one kind seize upon living beasts, and on that account constantly swarm about them, as the Raub-and Laufkäfer; the others only subsist as larvæ by suction upon other beetles or snails externally, but live, as Flies, upon leaves and flowers, as the Lampyridæ and Cantharidæ.
Fam. 4. Neuropteroid Beetles—Water-beetles.