Genitalic differences between lonicerae and trifolii may be unreliable, so treat the above with caution Z. trifolii
Zygaena trifolii/Z. lonicerae - aedeagus compared
See: Determination of the five spot burnets by M. Hull (1984). Lancashire & Cheshire Entomological Society Journals and Proceedings 1983-84 107 114-143
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