Hym:Tenthredinidae
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Heterarthrus microcephalus (Klug, 1818)
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the anal ring has some denticulations
the anal ring denticulations are seen here

 

Food Plant: Salix spp. (Willow)

Mine: Summer and Autumn

Pupa: In the mine in a large transparent cocoon

Notes: Forms a large blotch mine, with little frass.The larva has short legs. The anal ring has some denticulations (as shown above).

Data: 10.vii.2005 ex.mine 07.vii.2005, Webb's Wood, North Wiltshire, VC7, John Grearson

Image:© Rob Edmunds

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