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"Damselflies"
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Dragonflies and damselflies of the West
Dragonflies and Damselflies of the West is the first fully illustrated field guide to all 348 species of dragonflies and damselflies in western North America. Dragonflies and damselflies are large, stunningly beautiful insects, as readily observable as birds and butterflies. This unique guide makes identifying them easy--its compact size and user-friendly design make it the only guide you need in the field. Every species is generously illustrated with full-color photographs and a distribution map, and structural features are illustrated where they aid in-hand identification. Detailed species accounts include information on size, distribution, flight season, similar species, habitat, and natural history. Dennis Paulson's introduction provides an essential primer on the biology, natural history, and conservation of these important and fascinating insects, along with helpful tips on how to observe and photograph them.
eBook
Damselflies of Texas
On any warm summer day, you can easily observe damselflies around a vegetated pond or the rocks along the banks of a stream. Like the more familiar dragonfly, damselflies are among the most remarkably distinctive insects in their appearance and biology, and they have become one of the most popular creatures sought by avocational naturalists. Damselflies of Texas is the first field guide dedicated specifically to the species found in Texas. It covers 77 of the 138 species of damselflies known in North America, making it a very useful guide for the entire United States. Each species account includes: illustrations of as many forms (male, female, juvenile, mature, and color morphs) as possiblecommon and scientific names, with pronunciationdistribution mapkey featuresidentifying characteristicsdiscussion of similar speciesstatus in Texashabitat, seasonality, and general comments In addition to photographing damselflies in the wild, the author and illustrator have developed a new process for illustrating each species by scanning preserved specimens and digitally painting them. The resulting illustrations show detail that is not visible in photographs. The book also contains chapters on damselfly anatomy, life history, conservation, names, and photography, as well as a list of species that may eventually be discovered in Texas, state and global conservation rankings, seasonality of all species in chronological order, and additional resources and publications on the identification of damselflies.
eBook
New record of Cyanallagma demoiselle Denck, Ehlert amp; Pinto, 2023 (Odonata, Zygoptera, Coenagrionidae) in southern Brazil
During a field expedition in the municipality of Araquari, state of Santa Catarina, southern Brazil, adults of the damselfly Cyanallagma demoiselle Denck, Ehlert & Pinto 2023 (Odonata, Zygoptera, Coenagrionidae) were collected. This species was recently described and reported to date for the southeastern Atlantic Forest in Brazil. Here, we recorded this species as well as its respective genus for the first time for the state of Santa Catarina, increasing its distribution range of the species to southwards and raising the number of Odonata species recorded for this state to 151.
Journal Article
Description of the larva of Platycnemis phasmovolans Hämäläinen, 2003 (Odonata, Platycnemididae), with a key to the larvae of the subfamily Platycnemidinae from the Sino-Japanese and Oriental regions
The final instar larva of the rare species Platycnemis phasmovolans Hämäläinen, 2003 is described and illustrated here for the first time, including a new distribution record from Vietnam. The larva of P. phasmovolans differs from that of congeneric species by distinct morphological features, including the presence of four setae on the palpal lobe of the labium, the presence of lateral spines on abdominal S5–9, and a long terminal filament on the caudal lamella. We also provide a key to species for the known larvae of the subfamily Platycnemidinae in the Sino-Japanese and Oriental regions.
Journal Article
Odonata community in transition areas between Cerrado and Atlantic Forest biomes in south-central Minas Gerais, Brazil
Faunal inventories are essential for biota management and conservation, especially in areas with potential for the creation of conservation units. Inventories of insect taxa such as dragonflies and damselflies (Odonata), which perform several environmental services in aquatic and terrestrial ecosystems, are of great importance. In view of the above, this study aimed to update and expand the list of Odonata species in the Barroso region, Minas Gerais State, Brazil. This study was carried out in three areas of forest fragments in Atlantic Forest and Cerrado biomes in October 2020, December 2020, January 2021, and March 2021. The sampling effort was 8 hours per day during 20 days, totaling 140 sampling hours. A total of 43 Odonata species were recorded, which increased the richness of the study area from 57 to 76 species. The studied areas harbor rare and endangered species. However, since the last sampling in 2009, there has been a significant reduction in diversity in the Atlantic Forest fragment. In view of the changes that forest fragments are undergoing, we underscore the need to create a conservation unit, especially in Baú Forest.
Journal Article
Diversity and abundance of dragonfies and damselfies in Tampa Bay, Florida
Litle is known about the community of dragonfies and damselfies in Tampa Bay, Florida, USA. To address this gap, we conducted 2 longitudinal surveys of adult odonates in a natural foodplain of the Hillsborough River in 2013 and 2017. Along with abundance and species diversity, we also measured intraspecific variaton in body size, sexual dimorphism, wing-cell asymmetry, and water mite ectoparasitsm. Our first weekly survey from Oct 2013 to Oct 2014 sampled 327 adults (230 female, 97 male) from 8 dragonfly species, with the eastern pondhawk (Erythemis simplicicollis Say; Odonata: Libellulidae) representng 79% of captures, followed by the second most abundant (14%), the Florida non-native and neotropical hyacinth glider (Miathyria marcella Selys; Odonata: Libellulidae). Our second weekly survey from Sept to Dec 2017, which focused on both damselfies and dragonfies and captured 205 adults from 8 species, with the fragile forktail (Ischnura posita Hagen; Odonata: Coenagrionidae) being the most abundant with 70% of captures. Female-biased sexual size dimorphism was found in both E. simplicicollis and I. posita; however, both sexes were equally variable in size and symmetric in a meristc trait. Female and male M. marcella were equally variable, monomorphic, and symmetric. Combing symmetry data from each sex, only I. posita damselfies were asymmetric overall. Finally, we did not observe any parasitsm by larval water mites in either survey. We aim to continue surveys to track seasonal and climate-driven changes in dragonfly diversity and phenology in this region.
Journal Article