Figures 18-21 from: Huemer P, Mutanen M (2015) Alpha taxonomy of the genus Kessleria Nowicki, 1864, revisited in light of DNA-barcoding (Lepidoptera, Yponomeutidae). ZooKeys 503: 89-133. https://doi.org/10.3897/zookeys.503.9590

Figures 18-21 - Kessleria male genitalia. 18 Kessleria wehrlii, paratype, France, Dep. Alpes Maritimes, Mont Gelas Massiv, Mont Colomb W, 2450 m, 24.7.1990, leg. Huemer & Tarmann (DNA barcode ID TLMF Lep 01857), gen. slide YPO 64 (TLMF) 19 idem, distal part of phallus enlarged 20 Kessleria alpmaritimae sp. n., paratype, France, Dep. Alpes Maritimes, Marguareis W-Hang, Navela, 2100–2200 m, 18.-19.7.1991, leg. Huemer & Tarmann, gen. slide YPO 55 (TLMF) 21 idem, distal part of phallus enlarged.