Lygaeus equestris: Difference between revisions
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==Description== |
==Description== |
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[[File:Bug 2007-1.jpg|thumb|240px|left|''Lygaeus equestris'', lateral view]] These bugs can reach about 11 to 12 millimeters of length. They have a characteristic red-black |
[[File:Bug 2007-1.jpg|thumb|240px|left|''Lygaeus equestris'', lateral view]] These bugs can reach about 11 to 12 millimeters of length. They have a characteristic red-black pattern, fully developed wings and long, powerful legs. The hemelytra have two transverse bands that reach the margin and a round white spot on the membrane. [[Scutellum]] is without bristles but with tiny hairs. The black band close to the eye is wider than the same. |
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This species is very difficult to differentiate from ''[[Lygaeus simulans]]'', that has a scutellum with long bristles, antennae with angulous tubercles and a larger red area on the head. <ref>[http://toutunmondedansmonjardin.perso.neuf.fr/EN/pages_EN/lygaeus_simulans_EN.htm L. simulans]</ref> |
This species is very difficult to differentiate from ''[[Lygaeus simulans]]'', that has a scutellum with long bristles, antennae with angulous tubercles and a larger red area on the head. <ref>[http://toutunmondedansmonjardin.perso.neuf.fr/EN/pages_EN/lygaeus_simulans_EN.htm L. simulans]</ref> |
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The red-black |
The red-black pattern has a deterrent effect and serves to protect the insect ([[Mullerian mimicry]] or [[Batesian mimicry]]). By storing the toxic ingredients of their food plants, they are unpalatable to potential predators. |
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These bugs feed |
These bugs feed on plant juices, particularly milkweed (''[[Vincetoxicum hirundinaria]]'') <ref>[http://www.asturnatura.com/especie/lygaeus-equestris.html Asturnatura]</ref>, Spring pheasant's eye (''[[Adonis vernalis]]'') and sometimes also on dandelions. |
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==Distribution== |
==Distribution== |
Revision as of 23:07, 1 September 2012
Lygaeus equestris | |
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Adult of Lygaeus equestris | |
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Species: | L. equestris
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Binomial name | |
Lygaeus equestris (Linnaeus, 1758)
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Lygaeus equestris, common name Black-and-Red-bug, is a species of ground bugs belonging to the family Lygaeidae, subfamily Lygaeinae.
Description
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/93/Bug_2007-1.jpg/240px-Bug_2007-1.jpg)
These bugs can reach about 11 to 12 millimeters of length. They have a characteristic red-black pattern, fully developed wings and long, powerful legs. The hemelytra have two transverse bands that reach the margin and a round white spot on the membrane. Scutellum is without bristles but with tiny hairs. The black band close to the eye is wider than the same.
This species is very difficult to differentiate from Lygaeus simulans, that has a scutellum with long bristles, antennae with angulous tubercles and a larger red area on the head. [1]
The red-black pattern has a deterrent effect and serves to protect the insect (Mullerian mimicry or Batesian mimicry). By storing the toxic ingredients of their food plants, they are unpalatable to potential predators.
These bugs feed on plant juices, particularly milkweed (Vincetoxicum hirundinaria) [2], Spring pheasant's eye (Adonis vernalis) and sometimes also on dandelions.
Distribution
It is mainly present in Albania, Austria, Belgium, Bosnia, Bulgaria, Croatia, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Italy, Macedonia, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, Spain, Sweden, Switzerland, and former Yugoslavia. [3]
Subspecies
- Lygaeus equestris equestris (Linnaeus, 1758)
- Lygaeus equestris sicilianus (Wagner, 1955) [4]
References
Bibliography
- O Kugelberg - 1977 - Distribution, feeding habits and dispersal of Lygaeus equestris. (Heteroptera) larvae in relation to food supply L. equestris
- T. J. Henry: Phylogenetic analysis of family groups within the infraorder Pentatomomorpha (Hemiptera: Heteroptera), with emphasis on the Lygaeoidea. Annals of the Entomological Society of America 90: 275-301, 1997.
External links