@misc{GoodmanClark2009,
  author    = {Mark H. Goodman and Shawn M. Clark},
  title     = {Geographic variability in Calligrapha verrucosa (Suffrian 1858), a willow-feeding leaf beetle from western North America(Coleoptera: Chrysomelidae)},
  booktitle = {Insecta mundi : a journal of world insect systematics},
  issn      = {1942-1354},
  url       = {http://www.centerforsystematicentomology.org/insectamundi/},
  series    = {Insecta Mundi},
  number    = {0092},
  type      = {periodicalpart},
  year        = {2009},
}