... of Lausanne,CH-1015 Lausanne, Switzerland.2Dipartimento di Biologia Animale, University of Palermo, Via Archirafi, 18, 90123 Palermo, Italy.3University of Catania,CUTGANA, Section of Nature ... taxa viaFigure 6 Backcrosses of F1(B. balearicus × B. siculus, Fig. 6a ) to parental species of Sicilian green to ads .a- d:Wild-caughtanimalsinvolved in backcrosses. a: B. balearicus female; ... 50 of them until secondary sexual characters became visi-ble (paler coloration and nuptial pads of males).Though sex ratio was approximately even, we noticedabout 30% of dwarfed F1-males...