Agromyza varicornis Strobl, 1900

mine

The mine begins as a narrow under-surface corridor. It usually quickly becomes upper-surface, and also the following blotch part of the mine is upper-surface. Here and there in the blotch the larvae also eats from the palissade parenchyma, giving the mine a mottled aspect when held against the light, but less strongly than in A. lathyri. Frass in the initial corridor, if at all visible, in short threads; very little frass in the blotch. Pupation outside the mine.

hostplants

Fabaceae, monophagous

Lathyrus latifolius, sylvestris.

phenology

Larvae in June (Hering, 1957a); Robbins (1991a) however writes early summer and early autumn.

BENELUX

BE Not known from the Benelux countries (Fauna Europaea, 2007).

distribution within Europe

UK, Poland, Lithuania, Spain, Italy, Serbia (Fauna Europaea, 2007).

larva

synonyms

Agromyza watersi Spencer, 1957.

notes

The species also mines the wings of the stem, making whitish corridors (Robbins, 1991a).

references

Bland (2001a), Hering (1957a,b), Pakalniškis (1983a), Robbins (1991a), Spencer (1957e, 1959a, 1971a, 1972a).

13/04/2012

mod 25.vii.2017