Agromyza phragmitidis, Nieuwendam
‘head’ and rear end
Amsterdam, Nederhorst den Berg: front spiraculum lateral; rear spiracula, dorsal
Amsterdam, Nederhorst den Berg: mandibles, mouth field
The larva is described by Griffiths (1963a) and de Meijere (1925a). The rear arms of the cephalic skeleton quite weakly chitinised. Mandibles with 2, little or not alternating teeth. Behind the mandibles no spinulose field, but in front of the mandibles a few elongated papillae. Head protracted snoutlike, the other surface with a pattern of fine transverse ridges. Rear spiracula touch each other.
The weakly sclerotised rear arms of the cephalic skeleton easily distinghuish the larvae of this species from those of A. hendeli on the same hostplant.
Also Beri (1971c) describes the larva, taken from the gras Oplismenus compositus in India. In his illustrations the rear arms of the cephalic skeleton are shown as strongly chitinised, indicating that his identification must be incorrect.