The Brushfoots and their Biogeography
- Ullasa Kodandaramaiah outlines his research into butterflies of the family Nymphalidae at Stockholm University.
- http://people.su.se/~ukoda/

Niklas Wahlberg
- Research on the systematics of the butterfly family Nymphalidae at Stockholm University. Site includes details on classification (approximately 5235 species in 544 genera) and images of voucher specimens.
- http://www.zoologi.su.se/research/wahlberg/

Louis Maienza Productions
- Photos and brief information on Zebra Longwing and Gulf Fritillary.
- http://www.lamproductions.com/

Satyridae of Russia
- Information on species of Satyridae (or Satyrinae of the Nymphalidae) in the former USSR, including, type locality, synonyms, range, distribution and variation, taxonomic notes, habitat and biology, similar species, and photos of dead adults.
- http://osipov.org/insects/satyr.htm