Platydema subcostatum Laporte and Brullé, 1831

Collection information.

USA: Georgia: Clarke Co.: a single individual from one site. Caught in flight trap from 25 March – 9 April 2020.

Distribution.

Eastern North America.

Saproxylic habits.

Emerged from water oak and sweetgum (Ulyshen and Hanula 2009 a); adults aggregate under bark, feeding on fungi (Savely 1939), as well as in dead logs and tree trunks (Ciegler 2014).

Conservation.

Apparently lost after 1925 from the fauna of Plummers Island, Maryland, possibly due to changing forest conditions (Steiner 2008).