The Costa Rican fruit-feeding nymphalid butterfly Cithaerias pireta (Satyrinae: Haeterini) feeding on a fallen fruit of the rainforest tree Dipteryx panamensis (Fabaceae). Rodents often gnaw the thin pulp covering the seed, thus making fermenting juices available to these butterflies. Photo by P. J. DeVries.
Full paper here
Download high resolution file: ecog_issue_information_-_may.pdf