a single (holarctic) species in our area, ? spp. total(1)
Color varies from yellowish-brown to dark-brown for adults and yellow to black for pupae.
worldwide except the Neotropics(1)
hosts of the G. nymphaeae-complex include Nuphar spp., Nymphaea spp., Trapa spp., Potentilla palustris, Rumex hydrolapathum, Polygonum amphibium