A year-long study was conducted in the dry deciduous ecoregion of Purulia, West Bengal, India from March 2018 to February 2019 document diversity, species composition, and occurrence odonata different seasons. Direct search opportunistic sighting methods were used combination at five selected sites, namely, Sidho-Kanho-Birsha University campus, Saheb Bandh, Surulia Deer Park (Mini Zoo), Ketika,...

A phylogenetic hypothesis revealed two recent radiations among species of Enallagma damselflies, and extensive ecological work suggests that both adaptive and nonadaptive processes are involved in these radiations. We analysed the geographical pattern of genetic variability at 868 bp of mitochondrial DNA (mtDNA) among 283 individuals of 5 species displaying little ecological differentiation to ...

In zones of sympatry between closely related species, species recognition errors in a competitive context can cause character displacement in agonistic signals and competitor recognition functions, just as species recognition errors in a mating context can cause character displacement in mating signals and mate recognition. These two processes are difficult to distinguish because the same trait...

For many taxa, species are defined by the morphologies of reproductive structures. In many odonates, these structures are the cerci of males (used to hold females during mating) and the thoracic plates of females where the male cerci contact the females' bodies. A previous study showed that the shapes of cerci of Enallagma males (Zygoptera: Coenagrionidae) are best explained by an evolutionary ...

Probably the most common rock-imprint fossil-insect remain is an incomplete isolated wing. This pitfall has been traditionally addressed by manually reconstructing missing parts, which not ideal to comprehend long-term evolutionary trends in group, particular for morphological diversity (i.e., disparity) approaches. Herein we describe a new Triassic relative of dragon- and damselflies (Odonata)...

The group “Ważki (Odonata) w Polsce” is an excellent example of citizen science, understood as a cooperation between society and professionals in scientific activity. goal the present paper to show data concerning very late appearances dragonflies damselflies years 2013 – 2020, enrich knowledge about phenology various species comparison published data, which no longer valid, taking into conside...