Phytomyza affinis is a species of fly in the family Agromyzidae. It is found in the Palearctic.[2][3] Description of imago-Antennomere III brown black, 1-11 red. Mesonotum matt black lateral parts and notopleural depression yellow. Acrosticals in 2-4 rows. Coxae 1 yellow basally, II-III blackish. Femora yellow (black basally). Base of femora, tibiae and tarsi black. Abdomen brown black. Tergites with a yellow apical line dilated at the sides. Long. : 2,5–3 mm.[4] The larva mines Cirsium arvense and also feeds on seeds of Euphrasia.
References
^Fallén, C.F. (1823). Phytomyzides et Ochtidiae Sveciae. Lundae [= Lund]: Berlingianis. pp. 10 pp.
^Bei-Bienko, G.Y. & Steyskal, G.C. (1988) Keys to the Insects of the European Part of the USSR, Volume V: Diptera and Siphonaptera, Parts I, II. Amerind Publishing Co., New Delhi. ISBN81-205-0080-6ISBN81-205-0081-4
^Séguy, E. (1934) Diptères: Brachycères. II. Muscidae acalypterae, Scatophagidae. Paris: Éditions Faune de France 28 Bibliotheque Virtuelle Numerique pdf
