Isostictidae
- 1 min read
- 2 chapters
Related on Lably
Through Australia
Diagnosis
- 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.
Sign in to keep reading
One more chapter is free with a Lably account.
Ecology
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.