1. Institute of Biology; Scientific Research Centre of the Slovenian Academy of Sciences and Arts; Novi Trg 2 1000 Ljubljana Slovenia
2. Centre for Behavioural Ecology and Evolution; College of Life Sciences; Hubei University; 368 Youyi Road 430062 Wuhan China
3. Department of Entomology; National Museum of Natural History; Smithsonian Institution; PO Box 37012 Washington DC 20013-7012 USA