Protoneuridae

Protoneuridae can be distinguished from related families by wing venation patterns and genitalic morphology. Male cercus shape, genital ligula structure, female pronotum morphology, and epiproct form are particularly diagnostic at the generic level. Members of the genus Drepanoneura, for example, differ from Epipleoneura and Epipotoneura in male cercus morphology, genital ligula, female pronotum, and epiproct structure while sharing venational characters. Species within Neoneura exhibit variation in male appendage, genital ligula, and female pronotum morphology, with multiple color morphs occurring in some species.

Species occupy lotic freshwater habitats. Nososticta kalumburu in northern Australia inhabits rocky streams and pools in sandstone gorges, with larvae in shallow, slow-moving sections containing leaf litter and detritus. Adults remain near larval habitats in riparian vegetation. Neoneura confundens occurs across South America north of the Tropic of Capricorn but is absent from the central and lower Amazon, suggesting habitat specificity within tropical regions.

Primarily Neotropical, with 16 genera and 117 species in the region. Brazil harbors 64 species in 12 genera, representing the greatest national diversity. Wide-ranging Brazilian species include Neoneura sylvatica (11 states), Epipleoneura venezuelensis (11 states), and Epipleoneura metallica (eight states). Australian representation includes Nososticta kalumburu in the Kimberley region of Western Australia. Some species have restricted ranges while others show broad distributions with new state and country records continuing to emerge from museum revisions.

Nososticta kalumburu emerges during the wet season (January-March) in northern Australia. Teneral adults are found near water shortly after emergence.

Aquatic larval development in freshwater habitats. Emergence occurs during wet season in at least some species (January-March for Nososticta kalumburu). Teneral adults remain near water; mature adults may disperse away from aquatic habitats into surrounding forest.

Males of Nososticta kalumburu are territorial, perching on rocks or vegetation over water to defend territories. Mating occurs at water, with males and females remaining in tandem during oviposition into submerged vegetation or debris. Both sexes roost in riparian vegetation. Adults of some species disperse to forest away from water after maturation. Strong flight ability enables colonization of isolated habitats.

• CoenagrionidaeNew World Protoneuridae were previously classified within Coenagrionidae in some taxonomic revisions; both families share the superfamily Coenagrionoidea and require careful examination of wing venation and genitalic morphology for separation.
• PlatycnemididaeOld World Protoneuridae were previously sunk into Platycnemididae in some classifications; differentiation relies on detailed morphological characters including male cercus and genital ligula structure.

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• Catalogue of Life
• Drepanoneura gen. nov. for Epipleoneura letitia and Protoneura peruviensis, with descriptions of eight new Protoneuridae from South America (Odonata: Protoneuridae)
• Checklist and updated distribution of Protoneuridae from Brazil
• On the biology of the damselfly Nososticta kalumburu Watson & Theischinger (Zygoptera: Protoneuridae)
• Influence of the reproductive behavior of Neoneura sylvatica (Odonata: Protoneuridae) on spermatic morphology
• The true identity of Neoneura bilinearis Selys, 1860, with the synonymy of N. gaida Rácenis, 1953, and the description of N. confundens sp. nov. (Odonata: Protoneuridae)