Aulagromyza tremulae
Populus tremula, Germany, Berlin-Dahlem (from Hering, 1955a); xa : cephalic skeleton; xd : rear spiraculum; scale line is 0.1 mm.
For comparison, the same elements of A. tridentata: ya, yd
Front spiraculum with up to 10, rear spiraculum with about 16 paillae (Hering, 1955a).
21/12/2011