Volume 28, 2025
Bringing Shadowdragons to light: Neurocordulia (Anisoptera: Corduliidae) systematics
Neurocordulia, commonly called shadowdragons, are crepuscular dragonflies, flying mainly at dusk. The genus comprises seven species, which occur across the eastern part of Canada and the United States. Here, we used targeted enrichment probes to sequence ~1000 loci for all specimens of each species, allowing for the first phylogenetic assessment of the genus.
The larva of Hetaerina duplex Selys, 1853 (Odonata: Calopterygidae) with a key to known Colombian larvae species
The larva of Hetaerina duplex is described and illustrated for the first time based on specimens from Quindío and Risaralda departments of Colombia.
Slow motion analysis of flight curves in Odonata
Slow-motion recordings were used to analyze the flight of different species of dragonflies in the field. The flapping frequencies during the turns increased. The measures leading to curves correspond in the two groups of Odonata, Anisoptera and Zygoptera.
The current state of odonatology in India
In the past 50 years, odonatology has advanced on a global scale in phylogenetics, diversity, organismal and population ecology, and conservation biology. This study explored if such knowledge gains are perceived to have occurred in India, as they did worldwide, and identified knowledge gaps and challenges that might be hindering progress in Indian odonatology.
Erythiagrion, a new genus of damselfly from Peru, with description of its type species Erythiagrion alidae (Odonata: Coenagrionidae)
Erythiagrion gen. n. is erected and Erythiagrion alidae sp. n. is described and illustrated. The genus Erythiagrion can be recognized morphologically by the following character combination: rounded frons, long abdomen (abdomen/HW length: 1.6–1.9), absence of pretarsal supplementary tooth and CuA ending at or within one cell distance of vein descending from subnodus.
A new species of Ceylonosticta (Odonata: Platystictidae) from the Peak Wilderness Mountain Range of Sri Lanka
The genus Ceylonosticta is represented by 22 species distributed mainly in the wet lowlands and Central highlands of Sri Lanka. The present work describes another new species from this region.
Habitat associations of riverine odonates near La Fortuna, Costa Rica: effects of stream size and landscape context
The dragonflies (Insecta: Odonata) of Costa Rica are well-described, providing a solid foundation for studies in community ecology. We described the effects of stream size and habitat matrix (forest vs. pasture/development) on several indices of odonate community structure: abundance, species richness, diversity, and composition.
Breaking the mold: a new genus of Coenagrionidae (Odonata: Zygoptera) from a Brazilian Amazon protected area, with preliminary phylogenetic insights
A new genus and species of Coenagrionidae (Zygoptera: Odonata) is described from a remote and protected area in the Brazilian Amazon. The new taxon, Kuiagrion hamadae gen. n. et sp. n., displays a unique combination of morphological features, including a caudally projected pronotum in both sexes, fused ventrobasal and dorsal branches of the cerci, a genital ligula with distinctive lateral lobes, and reduced paraprocts.
Taxonomic notes on Crocothemis erythraea (Brullé, 1832) (Odonata: Libellulidae) from the Western Ghats of Peninsular India
The genus Crocothemis Brauer, 1868 (Odonata: Libellulidae) has two species distributed in the Indian region: Crocothemis erythraea (Brullé, 1832) and C. servilia (Drury, 1773). Crocothemis servilia is a common species in the lowlands of southern India, whereas C. erythraea appears to be a rare species restricted to the higher elevations of the southern Western Ghats.
A bibliometric study of odonate–spider predator–prey dynamics
Predation interactions between spiders and odonates are understudied. We compiled information on spiders that prey on Odonata and Odonata that prey on spiders. A systematic search was conducted in Web of Science™, Google Scholar™, and Google™ to address the following questions:
Description of the final instar larvae of Anisopleura yunnanensis Zhu & Zhou, 1999 (Odonata: Euphaeidae) from Yunnan Province, China
The larva of Anisopleura yunnanensis Zhu & Zhou, 1999 was identified by DNA barcode matching with the adult, and the morphology of the final instar larva is described and illustrated in color. Differences among known larvae of this genus is discussed, and a comparative table is provided.
Historical classification and nomenclature of Hawaiian damselflies (Pinapinao, Odonata: Coenagrionidae: Megalagrion): a review
The endemic Hawaiian damselflies of the genus Megalagrion have a complex taxonomic history. Classification within Megalagrion has predominantly focused on morphology and geography, followed by more recent and extensive molecular work.
Occurrence and distribution of Odonata (Insect: dragonflies and damselflies) in Nigeria
An inventory of Nigeria’s Odonata and their distribution in each of the country’s ecological zones are presented for the first time. Records are based on occurrence information from databases, verified literature, and observations from the field between 2020 to 2025.
Relationship between lotic odonate communities, waterway width, and habitat integrity in the mountains and piedmont of South Carolina, USA
Dragonflies (Insecta: Odonata) are sensitive to anthropogenic disturbances that affect water quality, siltation, and riparian canopy cover; but these characteristics also vary with waterway size. We used the visual scan method to sample adult odonates in a 100 × 10 m plot at 20 sites on 12 waterways of different size in forested habitats in northwestern South Carolina, USA.
From swamps to software: a comparison of field and modeled dragonfly richness across Southeast Australia (Odonata: Anisoptera)
Biodiversity monitoring is crucial for detecting species declines and informing conservation efforts; however, traditional field-based surveys are constrained by time, resources, and geographic scale. Ecological Niche Modeling (ENM) provides an alternative using large citizen-science datasets but requires validation against empirical data.
