Protracted-diapause
Guides
Gimnomera cerea
Gimnomera cerea is a Nearctic dung fly (family Scathophagidae) with a highly specialized life history tied to its host plant, Pedicularis canadensis. The species has a single annual generation synchronized to the flowering phenology of this hemiparasitic plant. Larvae are herbivorous, feeding on ovules and capsules, while adults of both sexes are predaceous on small insects. The species undergoes protracted diapause in soil puparia, an adaptation likely linked to the ephemeral availability of host plant reproductive tissues.