Isostictidae
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| Isostictidae | |
|---|---|
| |
| Oristicta filicicola | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Odonata |
| Suborder: | Zygoptera |
| Superfamily: | Coenagrionoidea |
| Family: | Isostictidae Fraser, 1955[1] |
| Genera | |
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Austrosticta | |
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Isostictidae is a family of small to medium-sized damselflies restricted to Australia, New Caledonia, and New Guinea.[2] It contains 12 genera and more than 40 species.[3] Members of this family resemble species in the former threadtail family (Protoneuridae).
Diagnosis
[edit | edit source]- Adult: The adults have a length of 15–40 mm. They have two antenodal crossveins, most postnodal crossveins aligned with crossveins behind them, quadrilateral cell almost rectangular, no supplementary intercalary longitudinal veins, and an anal vein fused with wing margin. Their antennae are seven-segmented.
- Larva: Larvae have a labial mask, with short flat palps and narrow palpal setae. Premental setae are variable, median lobe is shallowly cleft; caudal gills are saccular to triquetral and strongly nodate.[4]
Ecology
[edit | edit source]Adults of Isostictidae have many common names, for example: narrow-wings, pinflies, pins, pondsitters, and wiretails.
- Instream habitat: Isostictid damselfly nymphs occur in streams, rivers, and riverine pools. The adults occur along these habitats. The nymphs are found on submerged vegetation, willow roots, leaf packs and detritus.
- Feeding ecology: Nymphs and adults are predators.
- Habits: Nymphs of these damselflies are clingers. Adults like to rest on many different plants.
- Life history: Some females of some species lay their eggs in dry twigs over lentic freshwater. Other female species may lay their eggs on the bare rocks of waterfalls.[4]
See also
[edit | edit source]
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Wikispecies has information related to Isostictidae.
References
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