@article{PetrStewart2008,
  author    = {Daniel Petr and Kenneth W. Stewart},
  title     = {Comparative morphology of sensilla styloconica on the proboscis of North American Nymphalidae and other selected taxa (Lepidoptera) : systematic and ecological considerations},
  journal   = {Transactions of the American Entomological Society},
  volume    = {130},
  number    = {4},
  pages     = {293 -- 409},
  year      = {2008},
}