I include here some general links to Lepidoptera, especially tropical butterflies and particularly Neotropical Lepidoptera
- Afrotropical butterflies and skippers (Mark Wilson)
- Association for Tropical Lepidoptera
- Butterflies of the World: The Taxome Project. More than 80% complete scientific names (Gerardo Lamas et al.)
- Butterflies of Ecuador (Keith Willmott & Jason Hall)
- Butterflies of Venezuela (Andrew Neild)
- Butterfly research, mainly Lycaenidae (Naomi Pierce)
- Costa Rica caterpillar database and other things (Dan Janzen and Winnie Hallwachs)
- Heliconius systematics (and other life forms! Markku Savela)
- Lepidoptera of the French Antilles (Pierre Zagatti,; Bernard Lalanne-Cassou; Jeanne le Duchat d'Aubigny)
- Natural History of Monteverde, Costa Rica (including butterflies - especially Ithomiinae, plants and other things; Bill Haber)
- Type photos of Neotropical Butterflies (Tropical Andean Butterfly Diversity Project, Gerardo Lamas photos, Nick Grishin scripting)
- Nymphalidae.net and Nymphalidae Systematics Group (Niklas Wahlberg)
- Postzygotic isolation and speciation in Lepidoptera. Evolution 56: 1168-1183. Data table (As used by Gourbiere & Mallet 2010, currently neglected to be supplied by (Daven Presgraves).
