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An order of hexapod insects having a jointed proboscis, including four sharp stylets (mandibles and maxillæ), for piercing. In many of the species (Heteroptera) the front wings are partially coriaceous, and different from the others.

Of or pertaining to the Hemiptera.

One of the Hemiptera; an hemipter.

A genus of insects belonging to the order Hemiptera and family Aphidæ, including numerous species known as plant lice and green flies.

(c) The long projecting sucking mouth of some insects, and other invertebrates, as in the Hemiptera. (d) The upper or projecting part of the shell, near the hinge of a bivalve. (e) The prolongation of certain univalve shells containing the canal.

A general name applied to various insects belonging to the Hemiptera; as, the squash bug; the chinch bug, etc.

A division of the Hemiptera, including the aphids.

One of the partially thickened anterior wings of certain insects, as of many Hemiptera, the earwigs, etc.

One of the Hemiptera.

A suborder of Hemiptera, in which the base of the anterior wings is thickened. See Hemiptera.

A suborder of Hemiptera, in which both pairs of wings are similar in texture, and do not overlap when folded, as in the cicada. See Hemiptera.

Any one of several species of blood-sucking, venomous Hemiptera that sometimes bite the lip or other parts of the human body, causing painful sores, as the cone-nose (Conorhinus sanguisuga). [U. S.]

al, parasitic insects belonging to a tribe (Pediculina), now usually regarded as degraded Hemiptera. To this group belong of the lice of man and other mammals; as, the head louse of man (Pediculus capitis), the body louse (P. vestimenti), and the crab louse (Phthirius pubis), and many others. See Crab louse, Dog louse,…

The basal thickened portion of the anterior wings of certain hemiptera.

A genus of wingless parasitic Hemiptera, including the common lice of man. See Louse.

The proboscis of hemipterous insects. See Illust. under Hemiptera.

Same as Hemiptera. [Written also Rhyncota.]

The beak, or sucking mouth parts, of Hemiptera.

Any one of numerous species of Hemiptera belonging to Tettigonia and allied genera; a leaf hopper.

, considered by some writers a distinct order, but regarded by others as belonging to the Hemiptera. They are all of small size, and have narrow, broadly fringed wings with rudimentary nervures. Most of the species feed upon the juices of plants, and some, as those which attack grain, are very injurious to crops. Calle…