Erannis
Introduction '''''Erannis''''' is a genus of geometer moths in the subfamily Ennominae erected by Jacob Hübner in 1825.It is placed by some entomologists in the tribe Erannini as the type genus, but others merge this group into the tribe Boarmiini or Bistonini.The adults of these smallish moths typically live in the crowns of their host trees. The genus is most diverse in the Holarctic; few of the twelve or so known species occur in adjacent regions.
Species The following species are recognised in the genus ''Erannis'':* ''Erannis ankeraria'' (Staudinger, 1861)* ''Erannis caspica'' László, 2003* ''Erannis declinans'' (Staudinger, 1879)* ''Erannis defoliaria'' (Clerck, 1759) – mottled umber* ''Erannis erectaria'' (Püngeler, 1902)* ''Erannis golda'' Djakonov, 1929* ''Erannis jacobsoni'' Djakonov, 1926* ''Erannis kashmirensis'' László, 2003* ''Erannis occataria'' Erschoff, 1874* ''Erannis potopolskii'' Viidalepp, 1988* ''Erannis tiliaria'' (Harris, 1841) – linden looper, winter moth* ''Erannis vancouverensis'' Hulst, 1896 (sometimes in ''E. tiliaria'')
References *  (2003): New species of the genus ''Erannis'' Hübner, 1825 1816 from the North-West Himalaya and Iran (Lepidoptera, Geometridae). ''Acta Zoologica Academiae Scientiarum Hungaricae'' '''49 (2)''': 153–158.PDF fulltext*  (2004):  Butterflies and Moths of the World, Generic Names and their Type-species –  ''Erannis''. Version of November 5, 2004.Retrieved January 12, 2011. *  (2001): Markku Savela's Lepidoptera and some other life forms –  ''Erannis''. Version of December 9, 2001.Retrieved January 12, 2011.