Dasineura medullaris (Kieffer, 1891)
orange larvae in the pith of externally completely normal twigs. The larvae hibernate in the gall, pupate in spring just below the epidermis, where the can be recognised by a circular yellow spot.
larva and pupa
Larva 1.5 mm, pale, almost pear-shaped; spatula dark brown. Pupa bearing a pair of very acute teeth between the prothoracic horns.
spatula (from Kieffer, 1892a)
Cecidomyia, Rhabdophaga, medullaris.
Barnes (1951a), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Kieffer (1892a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Stelter (1980a).