The MES seal features an illustration of Euphydryas phaëton (Drury) (Lepidoptera: Nymphalidae), the Baltimore Checkerspot, with its generic name above and its specific epithet below (both in capital letters), all on a pale green field; all these are within a yellow ring double-bordered by red, bearing the message “● Maryland Entomological Society ● 1971 ●”.  All of this is positioned above the Shield of the State of Maryland.  In 1973, the Baltimore Checkerspot was named the official insect of the State of Maryland through the efforts of many MES members.