Stilbum calens

Stilbum calens (Fabricius, 1781) Chrysis calens Fabricius, 1781:455. Holotype ♀; Russia: Siberia (London). Stilbum calens: Rosa et al., 2013:40 (Semnan, Tehran). Stilbum calens westermanni Dahlbom, 1845:16; Boustani & Rosa, 2022:33 (Iran). Distribution. Iran (Semnan, Tehran). Euroasiatic, from Europe to Siberia and China; Northern Africa (Rosa et al., 2013). Remarks. The specimens recorded from Iran should be double-checked to be correctly identified. Recently Rosa et al. (2023b) elevated Stilbum westermanni to species rank, based on molecular analyses. However, molecular data and specimens for comparison were available from Europe, Russia and Central Asia, but not from Iran and the Middle East. For the moment, we still consider S. calens as the species distributed in Iran, but they both could be theoretically present in the country.