Isostictidae

Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Cladus: Odonatoptera
Cladus: Holodonata
Ordo: Odonata
Subordo: Zygoptera
Superfamilia: Coenagrionoidea

Familia: Isostictidae
Genera: Austrosticta - Cnemisticta - Eurysticta - Isosticta - Labidiosticta - Lithosticta - Neosticta - Oristicta - Rhadinosticta - Selysioneura - Tanymecosticta - Titanosticta
Name

Isostictidae Fraser, 1955
References

Dijkstra, K.-D.B., Kalkman, V.J., Dow, R.A., Stokvis, F.R. & Tol, J. van 2014. Redefining the damselfly families: a comprehensive molecular phylogeny of Zygoptera (Odonata). Systematic Entomology 39(1): 68–96. DOI: 10.1111/syen.12035 Open access. Reference page.

Isostictidae is a small family of medium-sized to large damselflies restricted to Australia, New Caledonia, and New Guinea.[2] It contains 12 genera and more than 40 species. Members of this family resemble species in the threadtail family (Protoneuridae).

Diagnosis

Adult: The adults are small to medium in size with 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: The larva has a labial mask short, flat, palps narrow, palpal setae present, premental setae variable, median lobe shallowly cleft; caudal gills saccular to triquetral, strongly nodate.

Ecology

Adults of Isostictidae have many common names and they are 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.

See also
Wikimedia Commons has media related to Isostictidae.
Wikispecies has information related to Isostictidae.

List of damselflies of the world (Isostictidae)

References

Dijkstra, K.D.B.; et al. (2013). "The classification and diversity of dragonflies and damselflies (Odonata). In: Zhang, Z.-Q. (Ed.) Animal Biodiversity: An Outline of Higher-level Classification and Survey of Taxonomic Richness (Addenda 2013)". Zootaxa. 3703 (1): 36–45. doi:10.11646/zootaxa.3703.1.9. hdl:10072/61365.

"Family ISOSTICTIDAE". Australian Faunal Directory. Australian Biological Resources Study. 2014. Retrieved 30 March 2017.

Identification and Ecology of Australian Freshwater Invertebrates