Ophiomyia penicillata Hendel, 1920
The larvae bore in the pith of young stems that turn red or yellow and often wither; flowers are aborted. Full grown larvae pupate within the stems, after having prepared an exit opening, that leaves only the epidermis undamaged.
Euphorbia characias, seguieriana.
distribution within Europe
Černý & Vála (1996a), Gil Ortiz (2009a), Gil-Ortiz, Martinez & Jiménez-Peydró (2010a), Martinez & Sobhian (2000a), Papp & Černý (2015a), Spencer (1957a, 1964a).