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Liriomyza congesta (Becker, 1903)
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the frass is in green strips

Food Plant: Anthyllis vulneraria (Kidney Vetch), Astragalus glycyphyllos (Wild Liquorice), Colutea arborescens (Bladder-senna), Galega officinalis (Goat's Rue), Lathyrus sp., Lathyrus japonicus (Sea Pea), L.montanus ( Bitter-vetch), L.odoratus (Sweet Pea), L.pratensis ( Meadow Vetchling), Lotus.corniculatus(Common Bird's-foot-trefoil), L.tenuis (Narrow-leaved Bird's-foot-trefoil), Medicago (Lucerne and Medicks), M.lupulina ( Black Medick), M.sativa ( Lucerne), Melilotus sp., M.officinalis (Ribbed Melilot), Pisum (Garden Pea), P.sativum(Garden Pea), Trifolium sp., (Clover), T.ochroleucon, T.pratense (Red Clover), T.repens(White Clover), Vicia sp.,(Vetches), V.benghalensis (Purple Vetch), V.cracca ( Tufted Vetch), V.faba (Broad Bean), V.sativa (Common Vetch), V.sepium (Bush Vetch).

Mine: early and late Summer

Notes: Forms an upper surface mine, which quickly widens and then stays about the same width, with the frass in a broad green central band. The larva is yellow.

Data: 26.v.2007, Stretham, Cambs, VC 29

Image:© Ian Barton

Recording Grade: 2

sponsored by Colin Plant Associates (UK) LLP/Consultant Entomologists