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Order Coleoptera: beetles or shield-winged insects

The Greek word Koleop, a "sheath," combined with that for "wine" makes up the scientific name of this important Order, which outranks all others in the number and diversity of its species. The insects have two pairs of wings, the upper of which, usually horny or leathery in texture, wings, which are folded and concealed beneath them. These wing-cases, called Elyira, usually meet together with a straight line down the back. The larvae are popularly known as grubs and borers; some live entirely below ground, some are aquatic, while others live upon foliage. This Order includes some of the most injurious insects, and at the same time many carnivorous species, which aid in keeping the vegetable-feeders in check.