''Helicopsyche'' is a genus of

Trichoptera The caddisflies (order Trichoptera) are a group of insects with aquatic larvae and terrestrial adults. There are approximately 14,500 described species, most of which can be divided into the suborders Integripalpia and Annulipalpia on the basis ...

, the

caddisflies The caddisflies (order Trichoptera) are a group of insects with aquatic larvae and terrestrial adults. There are approximately 14,500 described species, most of which can be divided into the suborders Integripalpia and Annulipalpia on the basis ...

. ''Helicopsyche'' contains more than 230 species and are represented on all major faunal regions with highest diversity in tropical and sub-tropical regions. The genus was first described by Siebold, 1856. The abundance and wide distribution of the genus makes it important to

fly fishing Fly fishing is an angling technique that uses an ultra-lightweight lure called an artificial fly, which typically mimics small invertebrates such as flying and aquatic insects to attract and catch fish. Because the mass of the fly lure is in ...

anglers, who know it as the "Speckled Peter".

Diagnosis

Larva

The case is dextrally coiled, with coils usually completely fused. Head is oval in dorsal view and smooth except for long setae and lateral carina. In lateral view the head has a trianguloid shape with the dorsal margin straight or slightly concave. Pronotum is strongly sclerotized while meso-and metantoum are weakly sclerotized. Anal claw with a single row of comb shaped hooks. Abdominal gills either are present or absent.

Adult

The maxillary palps are 2-, 3-, or 4-jointed. Antennae as long as fore wing or two times longer than fore wing length. Cephalic warts variable. One pair of oblong central warts on pronotum. Mesonotum either has setal warts or not. Metanotum always with setal warts. Postscutellar line present. Male and females have similar fore wings.

Phylogenetic relationship

''Helicopsyche'' probably forms the sister group to ''Rakiura'' McFarlane, 1973. The genus is monophyletic, since the ''Cochliopsyche'' was included by Johanson 2003. ''Cochliopsyche'' was formerly introduced by Müller (1885) as another genus within Helicopsychidae with spur formula 1, 2, 2, and very long antennae, which give them a leptocerid-like appearance. ''Helicopsyche'' now contains the six following subgenera '' Cochilopsyche'' Müller, 1885 (16 species); '' Petrotrichia'' Ulmer, 1910; '' Helicopsyche (subgenus)'' Siebold, 1856; '' Feropsyche'' Johanson, 1998 (73 species); '' Saetotricha'' Brauer, 1865; '' Galeopsyche''.

Distribution

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: Italy, France,

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, Switzerland, Spain.

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, India,

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, Japan,

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, China, Hong-Kong,

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: Australia, New Zealand,

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, Canada,

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, Mexico,

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, United States,

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References

* * * * ;Notes {{Taxonbar, from=Q5705143 Trichoptera genera Integripalpia Insects of Africa Insects of Europe Taxa named by Karl Theodor Ernst von Siebold