Phytomyza medicaginis

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Symphytum officinale, Waterloopbos (the larva is parasitised!)

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‘head’ and mandibles

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front and rear spiraculum

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front spiracula dorsal, spinulation

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mouth field, and the region just behind it


Phytomyza medicaginis larva

Lithospermum officinale, Germany, München-Freimann, from Hering (1955a, als Ph. symphyti); a : cephalic skeleton; b : frontal region of head; c : frontal spiraculum; d : rear spiraculum; e : part of the spinulation of the first abdominal segment, lateral; scale line is 0.1 mm.

Larva with an unusual median projection of the mesothorax (behind the front spiracula). Rear end without the customary lobes. Spinulation extremely fine. Behind the mandibles a finely rugulose field. The front spiraculum is bifid, with 17-19 papillae; rear spiraculum with 23-25 papillae (Hering,1963a; Beiger, 1975a).

22/12/2011

mod 25.vii.2017