I wanted to share with you a fabulous new resource—the Butterflies of Massachusetts website. Created by Sharon Stichter, Butterflies of Massachusetts “offers a comprehensive review of the current status of butterflies in the state. It is designed as a resource for all those interested in these charismatic insects, including butterfly enthusiasts, conservationists, biologists, land managers, and wildlife professionals.” I find the Species List particularly useful for learning more about the earliest recorded sightings of Massachusetts’s butterflies, frequency and distribution, and caterpillar hostplants. My readers residing outside of Massachusetts but along the East Coast will find the information on the Butterflies of Massachusetts website nearly equally as valuable. Ecologically speaking, the Appalachian Mountains and Atlantic coastal plain are largely self-contained, allowing unrestricted north-south movement of individual butterflies and migratory populations. The information found on the new Butterflies of Massachusetts website represents many years of data compiled by Sharon Stichter and the Massachusetts Butterfly Club.