Basal-phylogenetic-position
Guides
Sisyra
spongillafly, spongilla-fly
Sisyra is a genus of spongillaflies (Neuroptera: Sisyridae), a small family of aquatic insects. The genus comprises at least eight described species distributed across multiple continents, including Brazil, Panama, Australia, and Asia. Sisyra species have been documented in freshwater habitats, with larvae associated with freshwater sponges. The family holds a basal phylogenetic position within Neuroptera, and at least one species (S. nigra) exhibits an unusual achiasmatic sex chromosome segregation mechanism not observed in other neuropterans.