Key to the grass-inhabiting Agromyza larvae
key to Agromyza-larvae on grasses **
Dichotomous table for leafminers
1a the three papillae of the rear spiracula elongated, sigmoid => 2
1b these papillae neither elongated nor sigmoid => 4
2a (almost) exclusively on wild grasses, especially Dactylis glomerata: cinerascens
2b (almost) on cultivated cereals => 3
3a front spiraculum with 8 papillae: luteitarsis
3b front spiraculum with 11-14 papillae: intermittens
4a rear spiracula sessile, wide apart; only on Phragmites => 5
4b rear spiraculum stalked, more or less close together => 6
5a pupation within the mine; species of almost entire Europe: graminicola
5b pupation external; species from southern Spain: baetica
6a rear spiracula almost touching each other, separated by less than their diameter => 7
6b rear spiracula well separated => 10
7a mandibel with 2 teeth; only on Phragmites => 8
7bmandibel with 4 teeth => 9
8a rear arms of the cephalic skeleton weakly chitinised, yellowish: phragmitidis
9a front spiraculum with 9 papillae; mainly on cultivated cereals: megalopsis
9b front spiraculum with 12-16 papillae; only on wild grasses (preference for Phalaris): albipennis
10a bands of spines on the segments unusually wide; on abd. 8 the band dorsally occupies the entire width of the segment: nigrociliata
10b bands of spines narrower => 11
11a behind the mandibles ventrally a field with short spines => 12
11b no such field of spinules => 14
** two species could not be keyed out: bromi (possibly resembling nigrella) and conjuncta Spencer (larva and hostplant undescribed, possibly close to rondensis)