Diplopoda


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Related to Diplopoda: class Chilopoda, Chilopoda

Diplopoda

[də′plä·pə·də]
(invertebrate zoology)
The millipeds, a class of terrestrial tracheate, oviparous arthropods; each body segment except the first few bears two pairs of walking legs.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Diplopoda

 

a class of subphylum Tracheata, phylum Ar-thropoda. (According to an earlier system, Diplopoda was considered a subclass of class Myriopoda.)

The bodies of Diplopoda consist of a head and a more or less uniformly segmented trunk, most of whose segments bear two pairs of legs (whence the name), since each segment of the trunk is formed by the merging of two embryonic segments. Along the sides of the trunk segments in the majority of Diplopoda there are openings of defensive toxic glands, which secrete a pungent fluid that sometimes contains hydrocyanic acid. On the head there is a single pair of short unbranched antennae and two pairs of weak jaws. There are simple eyes or groups of simple eyes along the sides of the head. There are approximately 7,500 species, of which about 200 are found in the USSR. Diplopoda are terrestrial, but they require high humidity in the air and therefore inhabit the forest floor, the soil, rotten wood, fissures in rocks, and other shelters where the relative atmospheric humidity is approximately 100 percent. The respiratory organs are tracheas. The excretory organs include a pair of Malpighian tubules and the walls of the intestinal tract. Diplopoda feed on decaying plant remains; more rarely, they eat the succulent tissues of living plants. Diplopoda are beneficial, since they promote the mineralization and humification of the dead parts of plants and the formation of soils. Some Diplopoda (for example, the millipedes) sometimes cause damage in hothouses, vegetable gardens, and berry fields, where they may easily be destroyed by insecticides.

REFERENCES

Zhizn’ zhivotnykh, vol. 3. Edited by L. A.Zenkevich. Moscow, 1969.
Lokshina, I. E. Opredelite V dvuparnonogikh mnogonozhek Diplopoda ravninnoi chasti Evropeiskoi territorii SSSR. Moscow, 1969.

M. S. GILIAROV

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
KEYWORDS / Chilopoda / Coleoptera / Diplopoda / Formicidae / Forest Management / Oligochaeta / Trophic Groups /
Clase S AM AJ Gastropoda 565 (79.58) 127 (51.20) 40 (20.51) Clitellata 10 (141) 15 (6.04) 20 (10.25) Arachnida 39 (5.49) 28 (11.29) 24 (12.30) Malacostraca 10 (141) 2 (0.80) 2 (1.02) Insecta 47 (6.62) 44 (17.74) 47 (24.10) Chilopoda 10 (141) 4 (1.61) 9 (4.61) Diplopoda 16 (2.25) 21 (8.46) 32 (16.41) Symphyla 13 (1.83) 7 (2.82) 18 (9.23) Entognatha 5 (2.56) Total 710 248 197 Clase M Gastropoda 46 (47.91) Clitellata 6 (6.25) Arachnida 11 (11.45) Malacostraca 4 (4.16) Insecta 20 (20.83) Chilopoda 3 (3.12) Diplopoda 2 (2.08) Symphyla 4 (4.16) Entognatha Total 96 Cuadro 2.
Anatomy of the digestive tube, histology and histochemistry of the foregut and salivary glands of Rhinocricus padbergi Verhoeff (1938)(Diplopoda: Spirobolida: Rhinocricidae).
Por el contrario en esta estacion la abundancia de Isopoda y Diplopoda detritivoros fue significativamente mayor en los micrositios EB (F=3,27; P=0,002).
1 Coleoptera, Carabidae 2 3 Trichoptera unidentified 5 4 Trichoptera, Stenophylax permistus 1 Trichoptera, pupae 1 Neuroptera, Sisyridae 1 Lepidoptera, Scoliopteryx libatrix 1 Araneae, imm Meta menardi 1 1 1 Araneae, Meta merianae 2 1 Myriopoda, unidentified Diplopoda 1 Myriopoda, Julidae 5 5 Myriopoda, Cylindroiulus punctatus 1 2 Myriopoda, Nanagona polydesmoides 4 3 Myriopoda, Chilopoda Geophilomorpha 3 Gastropoda (Slugs) 1 12 Total number of prey recorded 26 39 4 Prey taxon Total % of total Unidentified prey items 3 4 Diptera, Nematocera 2 3 Diptera, Culicidae 1 1 Diptera, Eristalis sp.
Houve um aumento da frequencia relativa de Acari, Araneae, Diplopoda, Diptera, Isoptera, Collembola (Poduromorpha) e Collembola (Symphypleona) na coleta realizada em 2006, quando comparado a primeira, apresentando maiores valores de diversidade.
This work Group CC OC IA IB (individuals per [m.sup.2]) Araneae 3 a (b) 13 a 10 a 6 a Blattodea 0 a 0 a 3 a 3 a Chilopoda 0 a 9 a 3 a 13 a Coleoptera 26 ab 0 b 22 ab 32 a Diptera 0 a 0 a 3 a 0 a (larvae) Diplopoda -- -- -- -- Homoptera -- -- -- -- Hymenoptera 61 a 3 a 16 a 268 a Heteroptera 10 a 3 a 3 a 3 a Isoptera 0 a 0 a 16 a 0 a Lepidoptera 3 ab 0 b 10 a 0 b (larvae) Mollusca 10 a 42 a 22 a 38 a Oligochaeta 48 ab 96 a 3 b 42 ab Opiliones 0 a 0 a 0 a 3 a Orthoptera -- -- -- -- Others (c) -- -- -- -- n (d) 5 5 5 5 Velasquez et al.
Estes grupos de menor importancia numerica Aracnida (aranhas), Chilopoda (centopeias), Diplopoda (piolho-de-cobra), Diplura (Ordem de artropodes pertencentes a classe Entognatha), Gastropoda (caracois e lesmas), Isopoda (tatuzinhos), Orthoptera (grilos) e Thysanoptera (tripes) - e os organismos que nao puderam ser identificados foram considerados como "Outros".
The Chilopoda and Diplopoda collected by the American Museum of Natural History Congo Expedition (1909-1911) with notes on some other African species.
1B), Diplopoda, Psocoptera, Thysanoptera, Hemiptera e Hymenoptera, se encontro un efecto estadisticamente significativo de esta variable sobre la densidad de los grupos.