Hemiptera

Definitions

  • WordNet 3.6
    • n Hemiptera plant bugs; bedbugs; some true bugs; also includes suborders Heteroptera (true bugs) and Homoptera (e.g., aphids, plant lice and cicadas)
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Webster's Revised Unabridged Dictionary
    • n. pl Hemiptera (Zoöl) 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.☞ They are divided into the Heteroptera, including the squash bug, soldier bug, bedbug, etc.; the Homoptera, including the cicadas, cuckoo spits, plant lice, scale insects, etc.; the Thysanoptera, including the thrips, and, according to most recent writers, the Pediculina or true lice.
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Century Dictionary and Cyclopedia
    • Hemiptera An order of the class Insecta, founded by Linnæus in 1742, embracing a vast number of insects of diverse forms apparently not very closely related in structure, widely different in mode of life, and collectively known as bugs. The metamorphosis is incomplete, except in the male coccids and related forms. The molt is usually repeated four times, the stage next to the last, preceding the imago, being called pupa. There are four, or two, or no wings in different cases, and rarely halteres. The thoracic segments are either free or fused. The head is free or broadly united to the thorax, with or without faceted eyes. The essential characters of the order are found in the mouth-parts and associate modifications of the head and sternum, and in the wings. The mouth-organs are usually suctorial, the sucking-tube or haustellum being composed (in the higher forms) of two lateral half-channels or semicylindric pieces homologous with the labium and labial palpi. Thus the mouth-parts consist of a jointed tapering tube, arising from the front of the nnder side of the head, and inclosing four stiff bristles, which replace the mandibles and maxillæ, this whole rostrum being adapted both for piercing and for sucking. There is no sucking stomach. The modifications of the sternum are such as fit it to support the head and characteristic rostrum. In the largest group of Hemiptera the wings are thick and leathery at the base and membranous at the end. The tarsi are generally three- or two-jointed, rarely having only one joint. Most hemipterous insects feed on plant-juices or the blood of insects or animals, including man, but a few live on the moisture which collects under decaying bark, and certain of the higher forms subsist indifferently upon sap or blood. The Hemiptera have more than once been separated into several different orders, but most entomologists continue to accept the order in its original broad sense, dividing it into several suborders. Three of these universally recognized are Heteroptera, the true bugs; Homoptera, the bark-lice, plant-lice, scale-insects, leafhoppers, cicadas, etc.; and Parasita, the true lice. About 27,000 species are catalogued, and it is estimated that at least 50,000 exist. The Hemiptera thus outnumber far the Orthoptera and Neuroptera, and possibly the Lepidoptera. Formerly also called Ryngota, Siphonata, and Dermaptera (in part).
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Chambers's Twentieth Century Dictionary
    • n Hemiptera hem-ip′tėr-a an order of Insecta, in the classification of Linnæus: in later systems, the same as Rhyncota, including aphides, coccus insects, cicadas, bugs, water-scorpions, lice (Ametabola)
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Etymology

Webster's Revised Unabridged Dictionary
NL., fr. Gr. half + wing, fr. to fly
Chambers's Twentieth Century Dictionary
Gr. hēmi-, half, pteron, a wing.

Usage

In literature:

The Hemiptera contain one semi-parasitic species which has attained a "world-wide circulation," and one degraded, purely parasitic group.
"Scientific American Supplement, No. 303" by Various
HEMIPTERA, organs of audition in, 29.
"The Dawn of Reason" by James Weir
HEMIPTERA, protected by bad odour, 72.
"Contributions to the Theory of Natural Selection" by Alfred Russel Wallace
Aquatilia: cryptocerous Hemiptera of truly aquatic habit.
"Explanation of Terms Used in Entomology" by John. B. Smith
In the order Hemiptera, or the true "bugs" in an entomological sense, we find a few forms that may carry disease.
"Insects and Diseases" by Rennie W. Doane
This has not been shown to be the case in any other species of Hemiptera, so far as I can ascertain.
"Studies in Spermatogenesis" by Nettie Maria Stevens
Siphunculata and Hemiptera (lice and true bugs).
"Handbook of Medical Entomology" by William Albert Riley
This treatment is applicable to the orders Coleoptera, Hemiptera, and Orthoptera.
"Directions for Collecting and Preserving Insects" by C. V. Riley
In Hemiptera only eleven and in Collembola only six abdominal segments have been detected.
"Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4" by Various
Vestigial palps have been described in various species of Hemiptera, but the true nature of these structures is doubtful.
"Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3" by Various
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