British Insects: Dragonflies and Damselflies (Odonata)

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L. Watson and M. J. Dallwitz

Contents

These keys and descriptions were generated from a DELTA database (Dallwitz 1980; Dallwitz, Paine, and Zurcher 1993).

Introduction

Conventional key • Interactive key, including interactive information retrieval

The interactive key allows free choice of characters, is easy to use, and can lead to correct identifications in spite of occasional errors. It can display all the illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa.

Character list •  General morphology of Odonata • Implicit attributes

Notes on John Curtis’s British Entomology • Updated insect names for John Curtis’s British Entomology • Updated plant names for John Curtis’s British Entomology • Notes on the scanning of the images

Poems on insects by Giles Watson

Acknowledgements • References • Citation • Contacts, conditions of use, contributions

Descriptions

These descriptions were generated from a DELTA database (Dallwitz 1980; Dallwitz, Paine, and Zurcher 1993). The bold parts are diagnostic descriptions, generated with the aid of Intkey (Dallwitz et al. 1993). They distinguish most taxa in at least one respect from the other taxa.

• Aeshna caerulea (Ström, 1783) • Aeshna cyanea (Müller, 1764) • Aeshna grandis (Linnaeus, 1758) • Aeshna isosceles (Müller, 1767) • Aeshna juncea (Linnaeus, 1758) • Aeshna mixta (Latreille, 1804) • Agrion splendens (Harris, 1776) • Agrion virgo (Linnaeus, 1758) • Anax imperator (Leach, 1815)

• Brachytron pratense (Müller, 1764)

• Ceriagrion tenellum (de Villiers, 1789) • Coenagrion armatum (Charpentier, 1840) • Coenagrion hastulatum (Charpentier, 1825) • Coenagrion mercuriale (Charpentier, 1840) • Coenagrion puella (Linnaeus, 1758) • Coenagrion pulchellum (van der Linden, 1825) • Coenagrion scitulum (Rambur, 1842) • Cordulegaster boltonii (Donovan, 1807) • Cordulia linaenea (Fraser 1956)

• Enallagma cyathigerum (Charpentier, 1840) • Erythromma najas (Hansemann, 1823)

• Gomphus vulgatissimus (Linnaeus, 1758)

• Ischnura elegans (van der Linden, 1820) • Ischnura pumilio (Charpentier, 1825)

• Lestes dryas (Kirby, 1890) • Lestes sponsa (Hansemann, 1823) • Leucorrhinia dubia (van der Linden, 1825) • Libellula depressa (Linnaeus, 1758) • Libellula fulva (Müller, 1764) • Libellula quadrimaculata (Linnaeus, 1758)

• Orthetrum cancellatum (Linnaeus, 1758) • Orthetrum coerulescens (Fabricius, 1798) • Oxygastra curtisii (Dale, 1834)

• Platycnemis pennipes (Pallas, 1771) • Pyrrhosoma nymphula (Sulzer, 1776)

• Somatochlora arctica (Zetterstedt, 1840) • Somatochlora metallica (van der Linden, 1825) • Sympetrum flaveolum (Linnaeus, 1758) • Sympetrum fonscolombei (Selys, 1840) • Sympetrum nigrescens (Lucas, 1911) • Sympetrum sanguineum (Müller, 1764) • Sympetrum scoticum (Leach in Donovan, 1811) • Sympetrum striolatum (Charpentier, 1840) • Sympetrum vulgatum (Linnaeus, 1758)


Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. British insects: Dragonflies and Damselflies (Odonata). Version: 1st January 2012. http://delta-intkey.com’.

Insect groups treated separately in the ‘British Insects’ package

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