"Medium Cinnamon Sedge"
Limnephilus
americanus
casebuilding
caddis pupa
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larva: 20-30 mm / pupa: 14 mm / adult:
.75" 
These relatively large caddis flies occur primarily in slow-flowing streams and lakes. Early larva build stick cases, and where mollusks are available, develop shell cases almost entirely. Pupa usually dark brown-orange. On emergence, swim quickly to surface in pulsing motion visible to fish.
Other casebuilding caddis: "American Grannom", "Giant Red Sedge" , "Great Western Caperer" , "Little Sepia Sedge" , "Medium Speckled Sedge"