Early stage biology of two euptychiine butterfly species in the Peruvian Amazon (Lepidoptera: Nymphalidae: Satyrinae: Satyrini)

Abstract

The immature stages of two euptychiine butterflies (Nymphalidae: Satyrinae), Paryphthimoides terrestris (Butler, 1867) and Magneuptychia iris (C. Felder & R. Felder, 1867), are described herein and their natural host plants are documented. Notes on the immature stages of these two species were included previously in an unpublished dissertation, although our work is the first to provide satisfactory illustrations of the immature stages of these two taxa. Based on the population found and studied in Madre de Dios, Peru, both species utilize plant species in the family Poaceae. We provide illustrations of immatures, head capsules, and host plants for both species.