On these pages are 90+ species of neotropical butterflies of Northern Peru grouped by subfamily and family. Identification references used include Bernard D'Abrera's Butterflies of the Neotropical Region series, DeVries' Butterflies of Costa Rica series, and Feltwell's Illustrated Encyclopedia of Butterflies. Big thank yous go to Andrew Neild (author of The Butterflies of Venezuela), who helped with many identifications, Zsolt Bálint (Hungarian Natural History Museum) for identifying the Lycaenids, Stéphane Attal (Perisama sp.), and Tomasz Pyrcz (satyrines, pieridae). Thanks also to Fred Nijhout and Ian Mann for their suggestions. If you know the species of any of these or if you spot any errors, please email me at email@example.com All photos were taken with a Nikon CoolPix 4500. Enjoy!