The slogan of eButterfly is "bringing butterfly enthusiasts and scientists together." eButterfly is an online sightings program where contributors can record butterflies they have observed, build a virtual collection, keep track of lists, find butterflies, explore dynamic maps and share sightings with the larger community. Contributors are also encouraged to upload their historical records.
Soroye, P., Ahmed, N., and J.T. Kerr. 2018. Opportunistic citizen science data transform understanding of species distributions, phenology, and diversity gradients for global change research. Global Change Biology.