Hym:Tenthredinidae
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Heterarthrus vagans (Fallen, 1808)
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the larva has short feet

 

Food Plant: Alnus glutinosa (Alder) and Alnus cordata (Italian Alder)

Mine: Univoltine: autumn.

Pupa: Inside mine in a disc shaped cocoon.

Notes:Notes: A large blotch that normally starts at the margin, where some or much frass is ejected. Local and uncommon. Under-recorded due to being masked by the more common Fenusa dohrnii. H.vagans mines are generally single whereas F.dohrnii can be multiple.

Data: 16.x.2005, Fleet, Hants, VC12

Image:© Rob Edmunds

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