Wikipedia
eButterfly is an online database of butterfly observations that collects data on butterfly abundance, distribution and phenology across North America. Naturalists, entomologists and other citizen scientists contribute observations in checklist form and the aggregated information is available through mapping and queries tools on eButterfly. eButterfly has a vetting system where a group of regional experts review submissions to ensure that the quality of data remains high. Photos can be added to any observation and eButterfly supports life lists and photo libraries for users.
Observations can be entered directly to the eButterfly website or through partner portals such iNaturalist. As of September 2015, eButterfly users have contributed over 225,000 observations.