@misc{Porter2009,
  author    = {Charles C. Porter},
  title     = {A remarkable new species of Zethus Fabricius (Hymenoptera, Vespidae, Eumeninae) from Costa Rica},
  booktitle = {Insecta mundi : a journal of world insect systematics},
  issn      = {1942-1354},
  url       = {http://www.centerforsystematicentomology.org/insectamundi/},
  series    = {Insecta Mundi},
  number    = {0027},
  type      = {periodicalpart},
  year        = {2009},
}