Onychogomphus forcipatus
| Onychogomphus forcipatus | |
|---|---|
 | |
| Onychogomphus forcipatus var. unguiculatus, female | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Hexapoda |
| Class: | Insecta |
| Order: | Odonata |
| Family: | Gomphidae |
| Genus: | Onychogomphus |
| Species: | O. forcipatus |
| Binomial name | |
| Onychogomphus forcipatus (Linnaeus, 1758) | |
| Synonyms | |
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Onychogomphus forcipatus, the small pincertail or green-eyed hook-tailed dragonfly, is a species of dragonflies belonging to the family Gomphidae.
This quite common and widespread dragonfly is present in most of Europe. The adults grow up to 60 millimetres (2.4 in) long and can be encountered close to running water and lakes from June through September. Their life cycle lasts about 3–5 years.
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The eyes of Onychogomphus forcipatus are widely separated and grey-to-green. The two black lines on the side of the thorax are relatively narrow and touch the midline. It has a yellow line on the vertex and two cells above the anal triangle. The abdomen in males is fitted with three hooks of large size (anal appendages). Cercoids may be dark and have a subterminal tooth. The base of the hindwing is angled in males and rounded in females.
Subspecies
- Onychogomphus forcipatus var. albotibialis Schmidt, 1954
- Onychogomphus forcipatus var. forcipatus (Linnaeus, 1758)
- Onychogomphus forcipatus var. unguiculatus (Vander Linden, 1820)
References
- Göran Sahlén - Eggshell ultrastructure in Onychogomphus forcipatus unguiculatus (Vander Linden) (Odonata: Gomphidae) - Section of Entomology, Department of Zoology, Uppsala University, Villavägen - International Journal of Insect Morphology and Embryology
Volume 24, Issue 3, July 1995, Pages 281-286