Portal de Periódicos da CAPES

The butterflies of Isla de Cedros, Baja California Norte, Mexico

1989; Volume: 27; Issue: 3-4 Linguagem: Inglês

10.5962/p.266658

2156-5457

John W. Brown, David K. Faulkner,

Marine and coastal plant biology

Isla de Cedros is an arid Pacific island off the western coast of Baja California Norte, Mexico.The island supports a depauperate butterfly fauna consistent with other offshore islands which exhibit varying degrees of faunal reduction when compared to their mainland counterparts.The 23 butterfly species recorded from Isla de Cedros reflect 2 broad categories of presumptive biogeographic origin: 1) species of Neotropical origin, which are distributed throughout the peninsula; and 2) species of Nearctic origin, some of which occur throughout the peninsula, and others confined to the Californian province of the adjacent peninsula.The 80 year history of entomological activity on the island is outlined; the physiography of the area is briefly discussed; and the 23 butterfly species are listed with capture records and taxonomic comments.Additionally, an endemic species, Mitoura cedrosensis is described and illustrated.