Nicotiana tobacco
(For a dichotomous table for galls on Nicotiana by Hans Roskam click here)Dichotomous table for leafminers
1a blotch mine; larva with thoracic feet and chitinised head => 2
1b corridor mine; larva a maggot => 3
1c galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a blotch mine; larva with thoracic feet and chitinised head => 2
1b corridor mine; larva a maggot => 3
1c galls, etc => Tables for all parasites per species
2a larva: prothoracic unicolorous dark brown: Phthorimaea operculella
2b prothoracic plate pale brown with dark brown rear margin: Tuta absoluta
3a frass in discrete, well-separated grains; puparium in the mine, in a, usually lower-surface, pupal chamber: Chromatomyia horticola
3b frass mostly in strings or pearl chains; pupation outside the mine 4
4a corridor pinnately branched, main branch overlying the midrib; larva: rear spiraculum with 9-13 papillae: Liriomyza strigata
4b corridor not pinnate, freely winding through the blade; rear spiraculum with 7-12 papillae: Liriomyza bryoniae