Sanguisorba, Belgium: Viroinval
‘head’ and rear
front and rear spiraculum, lateral (left picture: Filipendula ulmaria, Belgium: Dourbes)
mandibles and detail of the spinulation
comparison of the mandibles of A. idaeiana (A) with those of spiraeoidearum (B, C); from Hering (1954a).
The larvae are described by Hering (1954a); mandibles with 2, non=alternating, teeth; front spiraculum with 9, rear spiraculum with 3 papillae. See also Beri (1971c).
According to Hering (1954a, 1955d), de Meijere’s (1925a) description of “Agromyza spiraeae” is a mix of idaeiana and spiraeoidearum.