• About
    • About WDA
    • Board of Trustees
    • Social Media Team
    • Meeting minutes
    • Glossary
    • Contact
  • Membership
    • Levels
    • Directory
    • Resources
  • Meetings
    • ICO2023
    • Past meetings
    • Future meetings
    • Other odonate meetings
  • Awards & grants
    • Past award recipients
    • Conservation & research grants
  • Resources
    • Odo-openings
    • Web resources
    • Member resources
    • About dragonflies
    • IUCN
    • Odonatological Abstracts
    • Odonate books
    • Selysia
  • Agrion
    • Agrion newsletter
  • Journal
    • International Journal of Odonatology
    • Editorial Board
    • Information
    • Instructions for Authors

Log In


Join Now | Lost Password?

Skip to content
Worldwide Dragonfly Association

Worldwide Dragonfly Association

International organization dedicated to dragonflies

  • Log In
  • Register
  • About
    • About WDA
    • Board of Trustees
    • Social Media Team
    • Meeting minutes
    • Glossary
    • Contact
  • Membership
    • Levels
    • Directory
    • Resources
  • Meetings
    • ICO2023
    • Past meetings
    • Future meetings
    • Other odonate meetings
  • Awards & grants
    • Past award recipients
    • Conservation & research grants
  • Resources
    • Odo-openings
    • Web resources
    • Member resources
    • About dragonflies
    • IUCN
    • Odonatological Abstracts
    • Odonate books
    • Selysia
  • Agrion
    • Agrion newsletter
  • Journal
    • International Journal of Odonatology
    • Editorial Board
    • Information
    • Instructions for Authors

Archives: Articles

Dorsolateral cuticular outgrowths in second stadium larvae of Gomphus flavipes (Odonata: Gomphidae)

Second and third stadium larvae of Gomphus flavipes have dorsolateral cuticular outgrowths in the form of small basal tubercles bearing fan-shaped setae. These sensilla are aligned in two rows on each side of the thorax and abdomen. European species of Gomphus, Onychogomphus and Ophiogomphus that we examined lack these structures, having instead, at most, short…

Sex ratio in Gomphidae (Odonata) at emergence: is there a relationship with water temperature?

Although the sex ratio of Odonata at emergence has received much attention, we are still far from understanding the exact causes of its variability and imbalance. In this paper we studied the sex ratios at emergence in natural populations of two Gomphus species based on samples of exuviae taken from two European lowland rivers. We

Volume 26

← Browse all issues

Also in this issue

Territorial males have larger wing spots than non-territorial males in the damselfly Calopteryx splendens (Zygoptera: Calopterygidae)

A collecting trip to San José del Guaviare, Colombia, with the description of a new species of Perissolestes (Zygoptera: Perilestidae)

← Browse all issues
Agrion Newsletter
damselfly icon International Journal of Odonatology

Recent Posts

  • IUCN Redlist: over 6000 dragonfly species assessed
  • WDA to host virtual event on 15 July
  • New changes in 2021
  • About Us
  • Contact Us
  • Help and FAQ
  • Join or renew membership
  • Privacy Policy
  • Privacy Tools
  • Terms of Service
  • Webmaster
   

Copyright © 2021 Worldwide Dragonfly Association (Memberlite theme)

Back to Top