Hym:Tenthredinidae
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Metallus lanceolatus (C.G.Thomson, 1870)
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larva

 

Food Plant: Geum aleppicum (Common Avens), G x 'Borisii' (Boris avens), G.urbanum (Herb Bennett)

Mine: Bivoltine: summer & early autumn.

Pupa: Outside the mine

Notes: Initially a short gallery leads to a full depth blotch. This gallery is usually overrun by the blotch. Frass black and plentiful. Local. (Formerly called Metallus gei). The larva is shown (ventral view).

Data: 05.ix.2020, Calley Heath, South-east Yorkshire, VC61

Image:© Ian Andrews

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