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7. APTEILA.

Having no wings in either sex at any period.-. Spiders, &c.

THE SEVEN ORDERS AE SUBDIVIDED INTO
GENERA.

1st. Order, Coleoptera, contains the following
genera.

1. Genus Scarabaus.   Beetle.

Antenna clavated, with a fissile tip. Legs generally toothed. Body thick and compact.

. Lucanus.   Staff-beetle.

Antenna clavated, with compressed tip, divided into lamelke on the inner side. Jaws stretched forward, and toothed,

8. Dermestes.   Leatherchafer.

Antenna elevated, with three joints, perfoliated. Thorax convex. Head withdrawn at pleasure beneath the thorax,

4. Ptinus.   Ptinus.

Antenna fihiform. Joints towards the end longest. Thorax roundish, concealing the head.

15   5. luster.