ENPages
p.1
1 Classification of the Coleoptera Latrille
General Divisions
I. Pentamera. all the tarsi with 5 joints II. Heteromera. 5 joints in the 4 first and 4 in the 2 last tarsi III. Tetramera. all the tarsi with 4 joints IV. Trimera. all the tarsi with but 3 joints.
Families.
I. Pentamera.
1. Carnivora. Six Palpi, two in each maxilla; antennae almost always filiform setaceous and simple.
2. Brachelytra, Four palpi, one in each maxilla; antennae equally thickened or slightly enlarged at the end; usually composed of lenticular or graniform joints; elytra much shorter than the body which is narrow & elongated; coxoe of the 2 anterior legs very large; near the anus 2 vesiceles protruded at will.
3. Serricornis. Four palpi; elytra covering the abdomen; antennae equal throughout of smaller at extremity, dentated like a saw, a comb or a fan; penultinate joint of the tarsi frequently bifid.
4. Clarricornes. Four palpi; elytra covering abdomen; antennae thickened at extremity, longer than maxillary palpi.
5. Palpicornes. Antennae clavate, consisting of 9 at most points in all, inserted under the projecting edges of the head, never much longer & frequently shorter than the maxillary palpi. Body usually ovoid or hemispherical. Frequently only 4 very distinct tarsal joints.
6. Lamellicornes. Antennae inserted in a deep fossula under the lateral margin of the head, short, of 9 or 10 joints, terminated in a club composed of the 3 last joints, which are lamellat. Body ovoid or oval, thick; exterior side of two anterior tibia dentated tarsi entire & without brush beneath.
II. Heteromera
1. Melasoma. Black or cinereous; mostly apterous; elytra solid; antennae entirely or partly granose; inserted under the projecting edges of the head; eyes oblong very slightly prominent; maxillae with a corneous tooth or hook inside.
2. Taxicornes. Maxilloe without the small corneous tooth on the inside; winged; body square; thorax trapezoidal or semicircular, concealing or receiving the head; antennae inserted under the edge of head, short, clavate; anterior tibia frequently broad, triangular.
3. Stenelytra. Antennae not granose, or perfoliate, or thickened at extremity; body oblong, arcuated above; legs elongated.
4. Trachelides. Head triangular or cordate, borne on a neck, as wide or wider than the thorax; body soft; elytra flexible, without striae, sometimes very short.
III. Tetramera.
1. Rhynchophora. Head entirely prolonged into a snout or proboscis. Abdomen bulky; antennae geniculate, or clavate; penultimate tarsal joint bilobate.
2. Xylophagi. Head without proboscis; antennae short, less than 11 jointed, thicker near extremity or perfoliate at base.
3. Platysoma. Antennae of equal thickeness throughout or more slender towards extremity palpi short; body depressed elongated thorax almost square.
4. Longicornis. Under part of 3 first tarsi with a brush; 2d and 3d cordiform; 4th deeply bilobate; antennae filiform or setaceous as long as the body; legs long slender; tarsi elongated.
