Reference

Florian Schiestl, Manfred Ayasse, Hannes F. Paulus, C. Löfstedt, B. Hansson, F. Ibarra, S. Francke, Wittko Francke (1998): Male attracting odour compounds in Andrena nigroeanea (Hymenoptera: Apoidea) and in the sexually deceptive orchid Ophrys sphegodes. – unbekannt – .