Scaptomyza pallida (Zetterstedt, 1847)
Diptera, Drosophilidae
mine
Narrow, shallow, sometimes branching corridor, widening into a shallow blotch. Frass in black accumulations. Puparium now within, then outside the mine.
hostplants
Alliaceae, monophagous
Allium cepa
phenology
Larvae in May and August (Hering, 1957a).
BENELUX
BE recorded (Gosseries, 1991a).
NE recorded (Beuk, 2002b).
LUX not recorded (Fauna Europaea, 2009).
distribution within Europe
All of Europe, Ireland perhaps excepted (Fauna Europaea, 2009).
larva, puarium
Very detailed description by Okada (1968a).
synonyms
Parascaptomyza disticha (Duda, 1921).
notes
There is some doubt if this species is a true leafminer, or perhaps a saprophyte (Hering, 1957a).
references
Beuk (2002b), Corbet (2004a), Gosseries (1991a), Hering (1957a), Maček (1999a), Okada (1968a), Robbins (1991a).
3.ii.2009