Amauromyza fraxini (Beiger, 1980)
on Fraxinus
Fraxinus angustifolia, Hungary, Budapest, 4.viii.2019 © László Érsek
parth of the mine, lighted from behind, showing the frass pattern
unfinished mine
vacated mine with upper-surface semicircular exit slit
larva in the mine
larva
Fraxinus angustifolia subsp. oxycarpa, Moldova; from Hering (1932g)
Fraxinus cf. angustifolia, Bulgaria, Varna, 30.viii.2014 © Stéphane Claerebout
mine
same mine, lighted from behind
mine with exit slit
mine
Fine, not too tortuous, upper-surface, quickly widening gallery. Frass as small rods regularly at either side. Pupation external (picture above).
hostplants
Oleaceae, monophagous
Fraxinus angustifolia subsp. oxycarpa (= “F. pannonica”), pallisiae.
Hering (1932g) attributes the mine to F. excelsior, but his picture shows that the leaflets have as many thoothlets as lateral veins, which indicates angustifolia.
phenology
Larvae until August (Hering, 1957a), but Skuhravá & Roques (2000a) report adults in April.
distribution within Europe
Moldova and Bulgaria (Fauna Europaea, 2010); mentioned by Hering (1960a) from Romania, and found by Süss (1999a) in Sicily; France (Reymonet & Ellis, 2019a).
larva
Posterior spiraculum with three papillae; mandible with two teeth, the distal one on the longest, right mandible quite long, reminding a Liriomyza (Hering, 1960a). See also Papp & Černý.
synonyms
Aulagromyza, Paraphytomyza fraxini.
notes
Until the description of the adult by Beiger known only as mine.
references
Hering (1932g, 1957a, 1960a), Papp & Černý (2016a), Reymonet & Ellis (2019a), Skuhravá & Roques (2000a), Süss (1999a).