Agromyza pittodes Hendel, 1931

on Bistorta

mine

the young larva makes a narrow gallery, with the frass in two rows of short strips; after the first moult an elongated blotch is made, centered over the midrib. Small leaves can be mined out entirely. Pupation is external.

host plants

Polygonaceae, monophagous

Bistorta vivipara.

phenology

Spencer mentions from Norway larvae in early July.

distribution within Europe

From Norway and Sweden to Austria and Hungary (Fauna Europaea, 2016). In Central Europe an alpine species.

larva

anterior spiraculum with 13-14 papillae; rear spiraculum on a low base, with 7-10 papillae in a circular group.

pupa

reddish brown, deeply constricted between the segments.

synonyms

Agromyza sergei Beiger, 1971.

notes

closely related to Agromyza polygoni on Bistorta officinalis.

references

Černý & Merz (2006a), Černý, Barták & Vaněk (2009a), Ci̇velek, Çikman & Dursun (2008a), Papp & Černý (2015a), Sasakawa & Imura (1993a), Spencer (1976a), Vála & Rohacek (1983a).

mod 1.i.2019