Latest Articles from ZooKeys Latest 15 Articles from ZooKeys https://zookeys.pensoft.net/ Fri, 29 Mar 2024 11:13:48 +0200 Pensoft FeedCreator https://zookeys.pensoft.net/i/logo.jpg Latest Articles from ZooKeys https://zookeys.pensoft.net/ Revision of Vanuatubasis Ober & Staniczek, 2009 (Odonata, Coenagrionidae), with description of seven new species https://zookeys.pensoft.net/article/89751/ ZooKeys 1128: 129-169

DOI: 10.3897/zookeys.1128.89751

Authors: Natalie A. Saxton, Milen G. Marinov, Seth M. Bybee

Abstract: Vanuatubasis Ober & Staniczek, 2009 is an endemic genus of damselfly found on the island archipelago of Vanuatu. Previously only three species were assigned to the genus. Here, all known species of Vanuatubasis are formally described and treated, including the association of females for known species. The following new congeners are also described: V. discontinua sp. nov., V. evelynae sp. nov., V. insularivorum sp. nov., V. kapularum sp. nov., V. nunggoli sp. nov., V. rhomboides sp. nov., and V. xanthochroa sp. nov. from material collected across six different islands. An illustrated key to both males and females of all species within Vanuatubasis is provided as well as distributions for all known species.

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Research Article Wed, 9 Nov 2022 09:43:04 +0200
Taxonomic note on the species status of Epiophlebia diana (Insecta, Odonata, Epiophlebiidae), including remarks on biogeography and possible species distribution https://zookeys.pensoft.net/article/83240/ ZooKeys 1127: 79-90

DOI: 10.3897/zookeys.1127.83240

Authors: Sebastian Büsse, Jessica L. Ware

Abstract: The species included in the genus Epiophlebia Calvert, 1903 represent an exception within Recent lineages – they do not belong to either dragonflies (Anisoptera) nor damselflies (Zygoptera). Nowadays, the genus is solely known from the Asian continent. Due to their stenoecious lifestyle, representatives of Epiophlebia are found in often very small relict populations in Nepal, Bhutan, India, Vietnam, China, North Korea, and Japan. We here present a taxonomic re-evaluation on the species status of Epiophlebia diana Carle, 2012, known from the Sichuan province in China, supplemented with a morphological character mapping on a genetic tree to highlight synapomorphies of E. diana and E. laidlawi Tillyard, 1921. We conclude that E. diana is a junior synonym of E. laidlawi. Furthermore, we discuss the Recent distribution of the group, allowing for predictions of new habitats of representatives of this group.

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Research Article Wed, 2 Nov 2022 15:22:33 +0200
Two new species of Archaeopodagrion (Odonata, Philogeniidae) from the western foothills of the Tropical Andes, with biological observations and distributional records https://zookeys.pensoft.net/article/64230/ ZooKeys 1036: 21-38

DOI: 10.3897/zookeys.1036.64230

Authors: Vanessa Amaya-Vallejo, Cornelio Bota-Sierra, Rodolfo Novelo-Gutiérrez, Melissa Sanchez-Herrera

Abstract: Two new species of the damselfly genus Archaeopodagrion, A. recurvatum sp. nov. and A. mayi sp. nov., are described from the confluence of the Tropical Andes and the Tumbes-Chocó-Magdalena biodiversity hotspots. Adults differ from the other known species in the shape of female posterior lobe of pronotum and male structures of cerci and paraprocts; the larva differs from other Archaeopodagrion species in the caudal lamellae structure and in the mandibular formula. The two new species are diagnosed, a morphological key to all known males and females in the genus is provided, and geographical distributions are updated. Finally, observations on habitat preferences for each newly described species are provided.

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Research Article Wed, 5 May 2021 16:38:48 +0300
Odonata of Canada https://zookeys.pensoft.net/article/25780/ ZooKeys 819: 227-241

DOI: 10.3897/zookeys.819.25780

Authors: Robert A. Cannings

Abstract: Since Corbet’s thorough 1979 overview of Canadian Odonata, hundreds of regional works on taxonomy, faunistics, distribution, life history, ecology and behaviour have been written. Canada records 214 species of Odonata, an increase of 20 since the 1979 assessment. Estimates of unrecorded species are small; this reflects the well-known nature of the fauna. A major impetus for surveys and analyses of the status of species is the work of the Committee on the Status of Endangered Wildlife in Canada which provides a scientifically sound classification of wildlife species potentially at risk. As of 2017, six species have been designated “Endangered” and two “Special Concern” (only five of which are officially listed under the Federal Species at Risk Act (SARA)). The Order provides a good example of molecular barcoding effort in insects, as many well-accepted morphological species in Canada have been barcoded to some degree. However, more barcoding of accurately identified specimens of many species is still required, especially in most of the larger families, which have less than 70% of their species barcoded. Corbet noted that the larvae of 15 Canadian species were unknown, but almost all larvae are now well, or cursorily, described. Extensive surveys have greatly improved our understanding of species’ geographical distributions, habitat requirements and conservation status but more research is required to better define occurrence, abundance and biological details for almost all species.

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Review Article Thu, 24 Jan 2019 18:00:14 +0200
Notes on the genus Indocnemis Laidlaw, 1917 in Vietnam with description of Indocnemis marijanmatoki sp. n. (Odonata, Zygoptera, Platycnemididae) https://zookeys.pensoft.net/article/29058/ ZooKeys 809: 15-29

DOI: 10.3897/zookeys.809.29058

Authors: Quoc Toan Phan

Abstract: Indocnemis marijanmatoki sp. n. (holotype ♂, 12°07'10.0"N, 108°5'51.0"E, 1503 m a.s.l., Hon Ba Nature Reserve, Nha Trang city, Khanh Hoa Province, central Vietnam) is described based on both sexes. The morphological variation of Indocnemis orang (Förster in Laidlaw, 1907) is discussed and its distribution in Vietnam updated.

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Research Article Wed, 19 Dec 2018 23:48:33 +0200
Can whole-drawer images measure up? A reply to Johnson et al. (2013)? https://zookeys.pensoft.net/article/5183/ ZooKeys 500: 141-149

DOI: 10.3897/zookeys.500.9139

Authors: John W.H. Trueman, David K. Yeates

Abstract: Johnson et al. (2013) found that morphometric measurements of dragonfly wings taken from actual specimens and measurements taken from whole-drawer images of those specimens were equally accurate. We do not believe that their conclusions are justified by their data and analysis. Our reasons are, first, that their study was constrained in ways that restrict the generalisability of their results, but second, and of far greater significance, their statistical approach was entirely unsuited to their data and their results misled them to erroneous conclusions. We offer an alternative analysis of their data as published. Our reanalysis demonstrates, contra Johnson et al., that measurements from scanned images are not a reliable substitute for direct measurement.

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Short Communication Mon, 27 Apr 2015 00:00:00 +0300
California dragonfly and damselfly (Odonata) database: temporal and spatial distribution of species records collected over the past century https://zookeys.pensoft.net/article/4720/ ZooKeys 482: 67-89

DOI: 10.3897/zookeys.482.8453

Authors: Joan E. Ball-Damerow, Peter T. Oboyski, Vincent H. Resh

Abstract: The recently completed Odonata database for California consists of specimen records from the major entomology collections of the state, large Odonata collections outside of the state, previous literature, historical and recent field surveys, and from enthusiast group observations. The database includes 32,025 total records and 19,000 unique records for 106 species of dragonflies and damselflies, with records spanning 1879–2013. Records have been geographically referenced using the point-radius method to assign coordinates and an uncertainty radius to specimen locations. In addition to describing techniques used in data acquisition, georeferencing, and quality control, we present assessments of the temporal, spatial, and taxonomic distribution of records. We use this information to identify biases in the data, and to determine changes in species prevalence, latitudinal ranges, and elevation ranges when comparing records before 1976 and after 1979. The average latitude of where records occurred increased by 78 km over these time periods. While average elevation did not change significantly, the average minimum elevation across species declined by 108 m. Odonata distribution may be generally shifting northwards as temperature warms and to lower minimum elevations in response to increased summer water availability in low-elevation agricultural regions. The unexpected decline in elevation may also be partially the result of bias in recent collections towards centers of human population, which tend to occur at lower elevations. This study emphasizes the need to address temporal, spatial, and taxonomic biases in museum and observational records in order to produce reliable conclusions from such data.

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Data Paper Mon, 16 Feb 2015 00:00:00 +0200
A new species in the genus Amphipteryx Selys, 1853 (Odonata, Amphipterygidae) from Pico Bonito National Park, Honduras https://zookeys.pensoft.net/article/3796/ ZooKeys 408: 71-80

DOI: 10.3897/zookeys.408.7174

Authors: Merlijn Jocque, Ivany Argueta

Abstract: The Mesoamerican damselfly genus Amphipteryx includes four species: Amphipteryx agrioides (Mexico), A.chiapensis (Mexico), A. meridionalis (Honduras) and A. nataliae (Verapaz, Guatemala). We describe a fifth species, Amphipteryx jaroli, from the cloud forest in Pico Bonito National park, Honduras. Additionally we include an up to date key of all species in the genus for both sexes.

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Research Article Tue, 13 May 2014 00:00:00 +0300
Redescription of the enigmatic genus Genuotermes Emerson (Isoptera, Termitidae, Termitinae) https://zookeys.pensoft.net/article/3295/ ZooKeys 340: 107-117

DOI: 10.3897/zookeys.340.6131

Authors: Mauricio Rocha

Abstract: The imago and soldier castes of the Neotropical Termitinae species Genuotermes spinifer Emerson are redescribed. The gut anatomy of the worker is described in detail for the first time, and morphological variations in the soldier are noted and illustrated. The known geographical distribution of G. spinifer is greatly expanded.

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Review Article Fri, 4 Oct 2013 00:00:00 +0300
Iberian Odonata distribution: data of the BOS Arthropod Collection (University of Oviedo, Spain) https://zookeys.pensoft.net/article/3173/ ZooKeys 306: 37-58

DOI: 10.3897/zookeys.306.5289

Authors: Antonio Torralba-Burrial, Francisco J. Ocharan

Abstract: Odonata are represented from the Iberian Peninsula by 79 species. However, there exists a significant gap in accessible knowledge about these species, especially regarding their distribution. This data paper describes the specimen-based Odonata data of the Arthropod Collection of the Department of Biología de Organismos y Sistemas (BOS), University of Oviedo, Spain. The specimens were mainly collected from the Iberian Peninsula (98.63% of the data records), especially the northern region. The earliest specimen deposited in the collection dates back to 1950, while the 1980’s and 2000’s are the best-represented time periods. Between 1950 and 2009, 16,604 Odonata specimens were deposited and are documented in the dataset. Approximately 20% of the specimens belong to the families Coenagrionidae and Calopterygidae. Specimens include the holotype and paratypes of the Iberian subspecies Calopteryx haemorrhoidalis asturica Ocharan, 1983 and Sympetrum vulgatum ibericum Ocharan, 1985. The complete dataset is also provided in Darwin Core Archive format.

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Data Paper Mon, 3 Jun 2013 00:00:00 +0300
Morphometric measurements of dragonfly wings: the accuracy of pinned, scanned and detached measurement methods https://zookeys.pensoft.net/article/3730/ ZooKeys 276: 77-84

DOI: 10.3897/zookeys.276.4207

Authors: Laura Johnson, Beth Mantle, Janet Gardner, Patricia Backwell

Abstract: Large-scale digitization of museum specimens, particularly of insect collections, is becoming commonplace. Imaging increases the accessibility of collections and decreases the need to handle individual, often fragile, specimens. Another potential advantage of digitization is to make it easier to conduct morphometric analyses, but the accuracy of such methods needs to be tested. Here we compare morphometric measurements of scanned images of dragonfly wings to those obtained using other, more traditional, methods. We assume that the destructive method of removing and slide-mounting wings provides the most accurate method of measurement because it eliminates error due to wing curvature. We show that, for dragonfly wings, hand measurements of pinned specimens and digital measurements of scanned images are equally accurate relative to slide-mounted hand measurements. Since destructive slide-mounting is unsuitable for museum collections, and there is a risk of damage when hand measuring fragile pinned specimens, we suggest that the use of scanned images may also be an appropriate method to collect morphometric data from other collected insect species.

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Research Article Fri, 8 Mar 2013 00:00:00 +0200
The first euthemistid damsel-dragonfly from the Middle Jurassic of China (Odonata, Epiproctophora, Isophlebioptera) https://zookeys.pensoft.net/article/3547/ ZooKeys 261: 41-50

DOI: 10.3897/zookeys.261.4371

Authors: Yongjun Li, André Nel, ChungKun Shih, Ren Dong, Hong Pang

Abstract: Sinoeuthemis daohugouensis gen. et sp. n. is the first record of the isophlebiopteran family Euthemistidae from Middle Jurassic of northeast China, while previously this family was restricted to the early Late Jurassic Kazakhstan. This new finding allows us to emend the family diagnosis with hindwing characters. This new species shows a mixture of characters alternatively present in different genera of the two families Euthemistidae and Sphenophlebiidae.

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Research Article Thu, 24 Jan 2013 00:00:00 +0200
The diversity of Odonata and their endophytic ovipositions from the Upper Oligocene Fossillagerstätte of Rott (Rhineland, Germany) https://zookeys.pensoft.net/article/2764/ ZooKeys 130: 67-89

DOI: 10.3897/zookeys.130.1441

Authors: Julián F. Petrulevičius, Torsten Wappler, André Nel, Jes Rust

Abstract: A commented list of fossil Odonata from the Oligocene outcrop of Rott is given, together with descriptions of new traces of oviposition in plant tissues, very similar to ichnotaxa already known from the early Eocene Laguna del Hunco floras of Patagonia. The joint presences of odonatan larvae and traces of oviposition demonstrate the autochthony of these insects in the palaeolake of Rott, confirming the existence of a diverse and abundant aquatic entomofauna, a situation strikingly different to that in the contemporaneous Oligocene palaeolake of Céreste (France).

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Research Article Sat, 24 Sep 2011 00:00:00 +0300
Rasnitsynala sigambrorum gen. et sp. n., a small odonatopterid (“Eomeganisoptera”, “Erasipteridae”) from the early Late Carboniferous of Hagen-Vorhalle (Germany) https://zookeys.pensoft.net/article/2767/ ZooKeys 130: 57-66

DOI: 10.3897/zookeys.130.1458

Authors: Wolfgang Zessin, Carsten Brauckmann, Elke Gröning

Abstract: Besides Erasipteroides valentini (Brauckmann in Brauckmann, Koch & Kemper, 1985), Zessinella siope Brauckmann, 1988, and Namurotypus sippeli Brauckmann & Zessin, 1989, Rasnitsynala sigambrorum gen. et sp. n. is the fourth species of the Odonatoptera from the early Late Carboniferous (Early Pennsylvanian: Namurian B, Marsdenian) deposits of the important Hagen-Vorhalle Konservat-Lagerstätte in Germany. With its wing-span of about 55mm it is unusually small even for the “Eomeganisoptera”. Its venation resembles other small “Eomeganisoptera”, in particular Z. siope. This is why it is here assigned to the probably paraphyletic “Erasipteridae” Carpenter, 1939.

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Research Article Sat, 24 Sep 2011 00:00:00 +0300
First descriptions of copepodid stages, sexual dimorphism and intraspecific variability of Mesocletodes Sars, 1909 (Copepoda, Harpacticoida, Argestidae), including the description of a new species with broad abyssal distribution https://zookeys.pensoft.net/article/2329/ ZooKeys 96: 39-80

DOI: 10.3897/zookeys.96.1496

Authors: Lena Menzel

Abstract: Mesocletodes Sars, 1909a encompasses 37 species to date. Initial evidence on intraspecific variability and sexual dimorphism has been verified for 77 specimens of Mesocletodes elmari sp. n. from various deep-sea regions, and ontogenetic development has been traced for the first time. Apomorphies are a strong spinule-like pinna on the mx seta that is fused to the basis, P2–P4 exp3 proximal outer seta lost, P1–P4 enp2 extremely elongated, furcal rami elongated, female body of prickly appearance, female P2–P4 enp2 proximal inner seta lost. Intraspecific variability involves spinulation, ornamentation and size of the body and setation and spinulation of pereiopods. Sexually dimorphic modifications of adult females include prickly appearance of the body, P1 enp exceeds exp in length, P1 coxa externally broadened, seta of basis arising from prominent protrusion, hyaline frills of body somites ornate. Sexual dimorphism in adult males is expressed in smaller body size, haplocer A1, 2 inner setae on P2–P4 enp2 and on P5 exp, P5 basendopodal lobe with 2 setae. Some modifications allow sexing of copepodid stages. The female A1 is fully developed in CV, the male A1 undergoes extensive modifications at the last molt. P1–P4 are fully developed in CV. Mesocletodes faroerensis and Mesocletodes thielei lack apomorphies of Mesocletodes and are excluded.

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Research Article Tue, 10 May 2011 00:00:00 +0300