| Snail-case caddisfly | |
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| Helicopsyche sp. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Trichoptera |
| Superfamily: | Sericostomatoidea |
| Family: | Helicopsychidae Ulmer, 1912 |
| Genera | |
Helicopsychidae (snail-case caddisflies) are a family of Trichoptera. The name refers to the helix shaped larval cases and they should not be confused with Limnephilidae which sometimes inhabit the snail shells. Their shells range from 6–8 millimetres (0.24–0.31 in) and are crafted from mineral grains. Their typical habitat is in slow-flowing water in ditches. Helicopsychidae larvae have a comb-like anal hook. Helicopsychidae is divided into two extant genera, Rakiura and Helicopsyche, and two fossil genera Electrohelicopsyche and Palaeohelicopsyche. The family contains more than 270 species and are present on all major faunal regions.
References
- ^ Kriska, György (2013). "Caddisflies - Trichoptera". Freshwater Invertebrates in Central Europe. Vienna: Springer. pp. 300–329. doi:10.1007/978-3-7091-1547-3_20. ISBN 978-3-7091-1547-3.
- ^ SOUZA, RAQUEL LIMA DE; GOMES, VICTOR; CALOR, ADOLFO R. (2017-02-03). "A new species of snail-case caddisflies (Trichoptera: Helicopsychidae) and new records of caddisflies from Chapada Diamantina, Bahia, Brazil". Zootaxa. 4227 (3): 347. doi:10.11646/zootaxa.4227.3.3. ISSN 1175-5334. PMID 28187573.
- Johanson, Kjell Arne (1953). "Phylogenetic and biogeographic analysis of the family Helicopsychidae (Insecta: Trichoptera)". Entomologica Scandinavica. Supplementum: 1–172.
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