Phytomyza heckfordi Bland, 2011
Oviposition near the leaf margin, in the distal half of the leaf. From here a narrow gallery of c. 15 mm runs to the leaf tip, then down again; then the gallery widens into a brown blotch that may occupy the entire width of the leaf. In the blotch the frass lies dispersed as black granules of variable sizes. Pupation external.
Bivoltine; occupied mines were found in late June and in the first half of September.
distribution within Europe
c. 1 mm, sausage shaped, pale orange brown, segment limits shallow. Front spiracula T-shaped; rear spircaula on two stout bases, touching each other at their feet, with 13-14 papillae in circular arrangement.