Ash onion moth
| Ash onion moth | ||||||||||||
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Ash onion moth ( Prays fraxinella ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Prays fraxinella | ||||||||||||
| ( Bjerkander , 1784) |
The ash-onion moth ( Prays fraxinella ) is a butterfly ( moth ) from the family of web and bud moths (Yponomeutidae).
features
The moths reach a wingspan of 14 to 18 millimeters.
Synonyms
- Tinea fraxinella Bjerkander , 1784
- Prays curtisellus Donovan , 1793
Flight time
The species forms two generations a year, the adults fly from May to June and in August. The second generation moths are dark in color.
Way of life
The young caterpillars of the first generation live mining on the leaves of the common ash ( Fraxinus excelsior ). The second generation larvae continue to feed on the terminal buds after the leaves have fallen off and migrate back into the leaves after they have sprouted. The terminal bud is lightly braided and completely hollowed out. The failure of the terminal bud causes so-called twister formation on the common ash.
pest
Prays faxinellus arguably causes the most economic damage of all the insect species living on the common ash.
Individual evidence
- ↑ Prays fraxinella (Bjerkander 1784). Fauna Europaea, Version 1.3, April 19, 2007 , accessed on December 21, 2007 .
- ↑ Prays fraxinella (BJERKANDER, 1784) - Esch Zwiesel Motte. Lepiforum, accessed August 27, 2009 .
