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An insect which has the anterior pair of wings coriaceous, and does not use them in flight, as the earwig.

An amphibious, insectivorous mammal found in Russia (Myogale moschata). It is allied to the moles, but is called muscrat by some English writers. [Written also dæsman.]

ower; to develop the mind. The sound developed itself into a real compound. J. Peile. All insects . . . acquire the jointed legs before the wings are fully developed. Owen.

l.) (a) The black rove beetle (Ocypus olens). [Eng.] (b) A large, predacious, hemipterous insect (Prionotus cristatus); the wheel bug. [U.S.] -- Devil's darning-needle. (Zoöl.) See under Darn, v. t. -- Devil's fingers, Devil's hand (Zoöl.), the common British starfish (Asterias rubens); -- also applied to a sponge wit…

s, or two phases differing in color, independently of age or sex, as in certain birds and insects.

An insectivorous plant. See Venus's flytrap.

An extensive order of insects having only two functional wings and two balancers, as the house fly, mosquito, etc. They have a suctorial proboscis, often including two pairs of sharp organs (mandibles and maxillæ) with which they pierce the skin of animals. They undergo a complete metamorphosis, their larvæ (called mag…

An insect of the order Diptera.

Having two wings, as certain insects; belonging to the order Diptera.

pecially to the eagles and hawks among raptorial birds, and to butterflies (Diurna) among insects. Diurnal aberration (Anat.), the aberration of light arising from the effect of the earth's rotation upon the apparent direction of motion of light. -- Diurnal arc, the arc described by the sun during the daytime or while…

The aquatic larva of a large neuropterous insect (Corydalus cornutus), used as bait in angling. See Hellgamite.

g hepatic moss. Dorsal vessel (Zoöl.), a central pulsating blood vessel along the back of insects, acting as a heart.

rcens); -- so called because they move about in vast armies, and drive away or devour all insects and other small animals.

A dipterous insect (Eristalis tenax), resembling the drone bee. See Eristalis.

Any insect of the genus Forticula and related genera, belonging to the order Euplexoptera.

The caudal spring used by Podura and related insects for leaping. See Collembola.

One of the anterior pair of wings in the Coleoptera and some other insects, when they are thick and serve only as a protection for the posterior pair. See Coleoptera.

The part of each apodeme derived from the intersternal membrane in Crustacea and insects.

An internal process of the sternal plates in the thorax of insects.

The ninth segment in insects.