Green clover shrew weevil
| Green clover shrew weevil | ||||||||||||
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Green clover shrew weevil ( Ischnopterapion virens ) |
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| Scientific name | ||||||||||||
| Ischnopterapion virens | ||||||||||||
| ( Autumn , 1797) |
The Grüneklee-Spitzmausrüssler ( Ischnopterapion virens ) is a weevils from the subfamily of the Apioninae .
features
The beetles reach a body length of 1.8 to 2.6 millimeters. Their body is shiny blue-green, especially the wing and pronotum . The nearly square pronotum has a less dense and less strong puncture. The wings are covered with dark hairy rows of dots in the longitudinal direction. The rostrum is more curved in the females than in the males.
Occurrence
The species occurs in the Palearctic . In Europe it is widespread and mostly common. To the south, their occurrence extends to North Africa. The species was introduced in eastern North America. It was first detected in Pennsylvania in 1994 .
Way of life
The beetles can be found from April to October. In summer and autumn as well as in the following spring, the beetles can be found feeding on the leaves of various legumes (Fabaceae), especially clover ( Trifolium ). The larval development takes place within the stems and roots of the host plants. The beetle species is considered an agricultural pest . The beetles can seriously damage freshly sown clover populations when they occur in large numbers.
Taxonomy
The following synonyms can be found in the literature :
- Apion aeneocephalum Gyllenhal , 1813
- Apion coeleste Schilsky , 1906
- Apion tristiculum Schilsky , 1906
- Apion violatum Schilsky , 1906
- Apion virens Herbst , 1797 ( protonym original name combination)
- Chlorapion virens ( Herbst , 1797)
Web links
- Ischnopterapion virens / Green Clover Shrew Weevil at www.naturspaziergang.de
- Ischnopterapion virens at www.insektenbox.de
Individual evidence
- ^ A b c Heinz Freude , Karl Wilhelm Harde , Gustav Adolf Lohse (ed.): Die Käfer Mitteleuropas . tape 10 : Bruchidae – Curculionidae 1 . Goecke & Evers , Krefeld 1981, ISBN 3-87263-029-6 , pp. 177 .
- ↑ a b c K. Hurka: Beetles of the Czech and Slovak Republic. Kabourek, Zlin 2005, ISBN 80-86447-11-1 , p. 264.
- ↑ a b c Species Ischnopterapion virens - White Clover Weevil. bugguide.net, accessed February 10, 2018 .
- ↑ White Clover Weevil - Ischnopterapion virens (Autumn, 1797). www.biolib.cz, accessed on February 10, 2018 .