Host plant selection and larval performance of the endangered Mitchell’s satyr butterfly (Neonympha mitchellii mitchellii) on two Carex species

Abstract

Mitchell’s satyr butterfly (MSB) is a federally endangered butterfly extant to Michigan and Indiana. Propagation programs are a critical component for the survival of this species. Carex stricta is the traditional host plant used for propagation rearing despite the existence of many Carex species in MSB’s natural fen habitat. To expand this knowledge, I examined 1st instar larvae (caterpillar) host plant preference, development, and survivorship.