Thysanoptera Californica

An identification and information system to thrips in California

Front Page

This revised version of Hoddle et al. (2012) has been produced partly to overcome technical problems arising from Java software and partly to incorporate new information and images, together with some additional potentially invasive species. Information pages are provided to 300 species in 108 genera, with the identification system discriminating 249 species. Of these species, 40 are as yet unrecorded in California but are potential invaders, whether interstate or from overseas. They have been included for the convenience of quarantine services in USA. In contrast, the Thysanoptera fauna of the American continent north of Mexico has been estimated to comprise 700 described thrips species (Arnett, 1985), with 147 species recorded from Canada (Foottit & Maw, 2019). This identification system is based essentially on adult females, these being the most commonly collected individuals. For larval thrips, the only modern identification system is to part of the Thripidae fauna of Europe (Vierbergen et al., 2010).