Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Genus Phryganea

Giant Casemaker larva - Phryganea Caddisfly - Phryganea Phryganea Giant Casemaker - Phryganea Egg Mass with hatchlings - Phryganea Phryganea sayi - female Phryganea sayi - female Phryganea sayi - male
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Trichoptera (Caddisflies)
Suborder Integripalpia
Infraorder Plenitentoria
Superfamily Phryganeoidea
Family Phryganeidae (Giant Casemakers)
Genus Phryganea
Explanation of Names
Phryganea Linnaeus 1758
Numbers
2 species in North America [cinerea, sayi] listed at nearctica.com
Size
adult body length 14-25 mm
Identification
Adult: forewing brownish-gray with indistinct longitudinal streaking; black line (broken in middle) runs from near base almost to outer margin; small white spots present at both ends and middle of this line; a shorter black line closer to costa in distal half of wing has white spot at anterior end; slender whitish or pale gray patch at base of wing next to thorax; black line on side of head runs through eye; antennae thick, about two-thirds as long as forewing; legs with conspicuous short spines

Larva case: usually made of narrow strips of plant materials glued together longitudinally, usually in rings or a spiral
Range
P. cinerea: all of Canada and northern United States - Alaska to Newfoundland, south to Connecticut, across the Great Lake states, through Nebraska and Colorado to California
P. sayi: south-central Canada (Quebec, Ontario, Saskatchewan) and northern United States east of the Rockies; absent from the west coast and southern tier of states
(see complete list of states and provinces in NatureServe Explorer link in Internet References below)
genus also represented by several species in Eurasia
Habitat
larvae live in ponds and marshes; adults found on nearby vegetation and are attracted to light
Season
adults fly in summer
Remarks
page creation based on identification of this image by Thomas Ames Jr.
Internet References
live adult image of P. cinerea plus adult size and info on larvae (Kansas State U.)
distribution list of states and provinces of occurrence for both North American species (NatureServe Explorer)
live adult image of a European species P. bipunctata (Biopix, Denmark)
live adult image of a European species P. grandis (Fluefiskesiden, Norway)
live adult image of a European species P. grandis (Universite de Bretagne-Sud, France)
live adult image of a European species P. striata (tiscali.co.uk, United Kingdom)