Immature stages of Argyrogrammana glaucopis (Bates) and the new sister species A. caerulea (Lepidoptera: Riodinidae: Symmachiini)

Abstract

The immature stages of two species in the Argyrogrammana amalfreda group (Riodinidae: Symmachiini) are described and illustrated for the first time. Immatures of both species, A. glaucopis (Bates, 1868) and the here-described sister species A. caerulea Hall, n. sp., were found on Symphonia globulifera Linnaeus f. (Clusiaceae) in separate lowland rainforest localities in eastern Ecuador. The current state of knowledge on Argyrogrammana food plants and immature stages is summarized.