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TaxonomyBrowse
Info
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Genus Hydatophylax

unknown - Hydatophylax argus huge caddisfly - Hydatophylax argus Northern Caddisfly - Hydatophylax argus Caddisfly - Hydatophylax argus Hydatophylax argus  - Hydatophylax Caddisfly - Hydatophylax argus Caddisfly - Hydatophylax argus Hydatophylax argus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Trichoptera (Caddisflies)
Suborder Integripalpia
Infraorder Plenitentoria
Superfamily Limnephiloidea
Family Limnephilidae (Northern Caddisflies)
Subfamily Limnephilinae
Tribe Stenophylacini
Genus Hydatophylax
Explanation of Names
Hydatophylax Wallengren 1891
Numbers
4 species in North America (nearctica.com)
Identification
Adult: wings clear except for brown-bordered white veins, and dark brown shading immediately surrounding several elliptical clear spots near middle of wing

Larva: fused sclerite sa1 on the third thoracic segment is a distinguishing character; another sclerite on the third thoracic segment is located posterior to each side hump
larval case made of large pieces of wood or sometimes pieces of grass
Habitat
attached to plant material submerged along banks of small streams
Remarks
According to the NatureServe Explorer site (see Internet References below), H. argus is widespread in eastern North America; H. hesperus and variabilis are restricted to the west coast, and H. victor is restricted to the extreme northeast (NS QC ME VT). However, the site cautions that the data is known to be incomplete or has not been reviewed.
Internet References
live adult image of H. argus (David Funk, Trichoptera of Pennsylvania, Penn State U.)
live larva images and description of larva (Valley City State U., North Dakota)
distribution of all 4 species; state/province lists (NatureServe Explorer)