Adenostyles
Incl. Cacalia.
(For a dichotomous table for galls on Adenostyles by Hans Roskam click here)
Dichotomous table for leafminers
1a mine full depth; larva with thoracic feet and a sclerotised head =>2
1b mine upper- or lower-surface; larva a maggot => 3
1c galls, etc => Tables for all parasites per species
Dichotomous table for leafminers
1a mine full depth; larva with thoracic feet and a sclerotised head =>2
1b mine upper- or lower-surface; larva a maggot => 3
1c galls, etc => Tables for all parasites per species
2a alpine species; pinacula black: Cnephasia sedana
2b lowland species; pinacula colourless (only the base of the setae black): Cnephasia incertana
3a first part of the mine a long, very narrow corridor; in the later part of the mine primary and secondary feeding lines are conspicuous => 4
3b mine different; no conspicuous feeding lines => 6
4a the first, corridor-part of the mine girdles a part of the leaf, that turns brown and withers; here a large blotch is made: Stemonocera cornuta
4b no girdling => 5
5a the latter part of the mine is a broad gallery, centered over the midrib: Trypeta zoe
5b the latter part is a broad secondary blotch without association with venation: Acidia cognata
6a pupation within the mine; the front spiracula of the puparium penetrate the epidermis => 7
6b pupation outside the mine; the larva leaves the mine by a semicircular slit in the epidermis => 8
7a corridor whitish (when illuminated from above), not conspicuously long; frass in dispersed grains: Chromatomyia cf. syngenesiae
7b corridor yellowish, up to 20 cm long; frass in long pearl chains: Phytomyza farfarae
8a corridor entirely upper-surface: Phytomyza tussilaginis
8b first part of the corridor lower-surface, often stellate: Phytomyza adenostylis