Dinidoridae

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Dinidoridae
Illustration from Megymenum affine

Illustration from Megymenum affine

Systematics
Class : Insects (Insecta)
Order : Schnabelkerfe (Hemiptera)
Subordination : Bed bugs (heteroptera)
Partial order : Pentatomomorpha
Superfamily : Pentatomoidea
Family : Dinidoridae
Scientific name
Dinidoridae
Stål , 1867

The Dinidoridae are a family of bugs (Heteroptera) within the suborder Pentatomomorpha . Of these, 65 species in 16 genera are known.

features

The large to very large bugs are 9 to 27 millimeters long and have an egg-shaped-elliptical, strongly built body. The head is keeled to the side, the scutellum is short.

The feelers have four or five sections. At least the last and penultimate segments are flattened. The short buccules on the labia are raised, lobed and closed at the back. The labium is short and does not reach behind the hips ( coxes ) of the front legs. The triangular scutellum is of medium size and has a blunt or rounded apex that extends to about half of the abdomen. It does not cover the corium. The forewings are often veined in a reticulate manner. The tarsi are bipartite or tripartite. The spiracles on the second abdominal segment are either completely visible, are not located on the anterior border of the metapleura, or are completely covered by this anterior border. The Trichobothria on the abdomen are usually arranged in pairs on the third to seventh sternum (only the genus Eumenotes has only one Trichobothrium per segment) and are arranged obliquely on the large callus, mesad of the spiracles. The ninth paratergite is greatly enlarged. Wing polymorphism is rare, but there are species with brachypteran individuals whose wings are greatly reduced.

The nymphs only have their dorsal abdominal scent glands between the fourth to sixth tergum , with a notch visible between the third and fourth.

Occurrence

The family is especially widespread in the Oriental and Afrotropic and there especially in the tropics. The genus Dinidor is neotropically distributed and the distribution of a species of the genus Megymenum extends to Australia.

Way of life

All previously known species feed on phytophagus . The animals are known from at least nine plant families, but mostly these are mere evidence of the animals on the plants. Sucking is known at least on cucurbits (Cucurbitaceae) and legumes (Fabaceae) and these two families are likely to be the actual hosts . Eumenotes obscura has also been found in dead plant material and flotsam on rivers.

Taxonomy and systematics

The group was first described in 1870 by Carl Stål as the subfamily "Dinodorida" of the stink bug (Pentatomidae). Lethierry & Severin (1893-1896) called the taxon Dinidoridae, although it remained unclear whether as a subfamily or a family, as the name endings were used inconsistently. Dennis Leston first treated the group as a family in 1955, followed by a number of authors after him.

The family is divided into the following subfamilies, tribe and genera:

supporting documents

Individual evidence

  1. ↑ a b c Family Dinidoridae. Australian Biological Resources Study. Australian Faunal Directory, accessed December 27, 2013 .
  2. ↑ a b c d e f g R.T. Schuh, JA Slater: True Bugs of the World (Hemiptera: Heteroptera). Classification and Natural History. Cornell University Press, Ithaca, New York 1995, pp. 225ff.
  3. ^ LH Rolston, DA Rider, MJ Murray & RL Aalbu: Catalog of the Dinidoridae of the World. Papua New Guinea Journal of Agriculture, Forestry & Fisheries 1996, Vol. 39, No. 1. (online: PDF )

literature

  • RT Schuh, JA Slater: True Bugs of the World (Hemiptera: Heteroptera). Classification and Natural History. Cornell University Press, Ithaca, New York 1995.

Web links

Commons : Dinidoridae  - collection of images, videos and audio files