SPECIES FACT SHEET
Common Name: a caddisfly
Scientific Name: Moselyana comosa
Phylum: Mandibulata
Class: Insecta
Order: Trichoptera
Family: Apataniidae
Technical Description: None available. See Wiggins (1973).
Life History: On Marys Peak, Wiggins (1973) noted that the adults were
abundant in June, flying over a spring seepage area. The larval case is made of
rock fragments, is tapered and curved, and covered with a silken secretion
making the exterior very smooth (Anderson 1976).
Range, Distribution, and Abundance: Apparently restricted to the Cascade
and Coastal Ranges of Oregon and Washington. Approximately 16 populations
are known with many of these concentrated in old-growth forests on Marys
Peak, Benton Co., Oregon. Other records are known from Mt. Rainier National
Park, Mt. Hood, and south to Crater Lake (Wisseman pers. comm.). Known
from 3000 to 6000 feet elevation (Anderson 1976).
Documented occurrences are known from the Mt. Hood and Siuslaw National
Forests. No site specific information is available.
Habitat Associations: Populations are exceedingly localized in forested seeps.
Most records come from subalpine forest seeps (Wisseman pers. comm.).
Threats: Their seep habitats are probably very sensitive to logging and road
building activities.
Conservation Considerations: Riparian habitat conservation and buffering
will likely benefit this species.
Other pertinent information (includes references to Survey Protocols,
etc): This is the only species known in this unusual genus.
Preparer: Eric Scheuering
Date Completed: December 16, 2005
Edited by: Rob Huff
Date: June 26, 2007
References:
Anderson, N.H. 1976. The biology and distribution of the Oregon Trichoptera.
Ore. St. Univ. Ag. Exp. Sta. Tech. Bull. #134. 152 pp.
Wiggins, G.B. 1973. Contributions to the systematics of the caddisfly family
Limnephilidae (Trichoptera), I. Life Sci. Contr. R. Ont. Mus. No. 94.
Wisseman, Robert W. Aquatic Biology Associates, Inc. Corvallis, OR.