<\/p>\n
1a<\/strong> mine small, full-depth, maybe many together, larva with chitinised head => 2<\/p>\n 1b<\/strong> mine > 1 cm, upper- or lower-surface; larva a maggot => 5<\/p>\n 1c<\/strong> galls, etc => Tables for all parasites per species<\/a><\/p>\n<\/div>\n <\/p>\n 2a<\/strong> usually many mines together in a vein axil; larvae whitish; later thet live free, causing extensive window feeding: Epermenia chaerophyllella<\/em><\/a><\/p>\n 2b<\/strong> mines differently arranged; larvae dark grey; later they live among spun leaves => 3<\/p>\n<\/div>\n <\/p>\n 3a<\/strong> larva: pinacula colourless (the bases of the setae themselves are black) : Cnephasia incertana<\/a><\/em><\/p>\n 3b<\/strong> pinacula black => 4<\/p>\n<\/div>\n <\/p>\n 4a<\/strong> larva: behind\/below the anus a chitinous comb: Cnephasia asseclana<\/a><\/em><\/p>\n 4b<\/strong> anal comb absent: Cnephasia stephensiana<\/a><\/em><\/p>\n<\/div>\n <\/p>\n 5a<\/strong> long gallery => 6<\/p>\n 5b<\/strong> blotch => 8<\/p>\n<\/div>\n <\/p>\n 6a<\/strong> gallery pinnately branched; main and side branches on top of a thick vein and its lateral veins: Liriomyza strigata<\/em><\/a><\/p>\n 6b<\/strong> gallery not determined by the venation of the leaf => 7<\/p>\n<\/div>\n <\/p>\n 7a<\/strong> gallery upper-surface, whitish frass grains close together: Phytomyza spondyllii + Ph. pastinacae<\/em><\/a><\/p>\n 7b<\/strong> gallerey interparenchymatous, yellowish; frass grains few, widely spaced: Phytomyza sphondyliivora<\/a><\/em><\/p>\n<\/div>\n <\/p>\n 8a<\/strong> blotch interparenchymatous, yellowish green at first, brownish later, perforate; appearance of a fungus infestation => 9<\/p>\n 8b<\/strong> blotch upper- or lower-surface => 10<\/p>\n<\/div>\n <\/p>\n 9a<\/strong> larva: frontal appendage present: Phytomyza heracleana<\/em><\/a><\/p>\n 9b<\/strong> frontal appendage absent: Phytomyza sp.<\/em><\/p>\n<\/div>\n <\/p>\n 10a<\/strong> at the start of the mine at the underside of the leaf a group of long-oval egg shells: Pegomya vanduzeei<\/em><\/a><\/p>\n 10b<\/strong> no egg shells at the start of the mine => 11<\/p>\n<\/div>\n <\/p>\n