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).