Difference between revisions of "Pissodes castaneus"
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[[File:Pissodes notatus bialowieza forest beentree.jpg|250px|thumb|''Pissodes castaneus'' (syn. ''P. notatus'') in Poland (click on image to enlarge it)<br/>Source: [http://commons.wikimedia.org/wiki/File:Pissodes_notatus_bialowieza_forest_beentree.jpg Wikimedia Commons]]] | [[File:Pissodes notatus bialowieza forest beentree.jpg|250px|thumb|''Pissodes castaneus'' (syn. ''P. notatus'') in Poland (click on image to enlarge it)<br/>Source: [http://commons.wikimedia.org/wiki/File:Pissodes_notatus_bialowieza_forest_beentree.jpg Wikimedia Commons]]] | ||
| − | <font color="#800000">'''''Pissodes castaneus'''''</font> (De Geer, 1775) - (small banded pine weevil) | + | <font color="#800000">'''''Pissodes castaneus'''''</font> (De Geer, 1775) - (small banded pine weevil) |
| − | is native to Europe and temperate regions of Asia but has been introduced into South America. The female lays eggs into pine | + | |
| + | The weevil is native to Europe and temperate regions of Asia but has been introduced into South America (first record in Brazil in 2000). The female lays eggs into pine branches, under the bark, and the larvae feed on the phloem of the trees. Other conifers may be also attacked. Heavy infestations can result in the death of pine seedlings. | ||
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| + | There are 4 larval stages and usually one generation per year. In warmer regions there may be 2 generations and in cooler areas one generation may develop over 2 years. The adults are 5-7 mm long, greyish to brownish with lighter (white, yellowish or orange) and darker spots, e.g. on two bands across the elytra. The pronotum has a distinct longitudinal keel. | ||
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''Pissodes notatus''<br /> | ''Pissodes notatus''<br /> | ||
''Pissodes palmes'' | ''Pissodes palmes'' | ||
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<gallery widths=200px caption="Other images of Pissodes castaneus (Wikimedia Commons and PaDIL - click to enlarge)"> | <gallery widths=200px caption="Other images of Pissodes castaneus (Wikimedia Commons and PaDIL - click to enlarge)"> | ||
Latest revision as of 16:53, 30 September 2016
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Source: Wikimedia Commons
Pissodes castaneus (De Geer, 1775) - (small banded pine weevil)
The weevil is native to Europe and temperate regions of Asia but has been introduced into South America (first record in Brazil in 2000). The female lays eggs into pine branches, under the bark, and the larvae feed on the phloem of the trees. Other conifers may be also attacked. Heavy infestations can result in the death of pine seedlings.
There are 4 larval stages and usually one generation per year. In warmer regions there may be 2 generations and in cooler areas one generation may develop over 2 years. The adults are 5-7 mm long, greyish to brownish with lighter (white, yellowish or orange) and darker spots, e.g. on two bands across the elytra. The pronotum has a distinct longitudinal keel.
| Vernacular names | |
|---|---|
| • Deutsch: | Kiefernkulturrüssler Kleiner Kiefernkulturrüssler |
| • English: | small banded pine weevil |
| • Español: | gorgojo pequeño del pino |
| • Français: | petit charançon des pins |
Synonyms:
Curculio castaneus
Pissodes brunneus
Pissodes notatus
Pissodes palmes
- Other images of Pissodes castaneus (Wikimedia Commons and PaDIL - click to enlarge)
larva and pupa
freshly moulted adult
head
pronotum
damage
