Frigid Forestfly -
No photos are currently available
If you have a high quality photo of this species, are confident in the identification, and would like to submit it
for inclusion on the Montana Field Guide, please send it to us using our online photo submission tool.
We do not yet have descriptive information on this species. Please try the buttons above to search for information from other sources.
Rangewide, Zapada frigida is known from scattered localities in Alaska (SNR), Idaho (SNR), Montana (SNR), New Mexico (SNR), Utah (S1?) and in Canada, the Yukon Territory (SNR) (NatureServe 2006). Occurrences in the Northern Rocky Mountains are related to the higher elevation cold streams
In Idaho, Z. cordillera has only been reported from Sherman Creek in Idaho County (Baumann et al. 1977). In Montana, Z. cordillera has been reported from scattered localities in Flathead and Glacier Counties, and from the Northern Rocky Mountain Refugium area of Mineral and Missoula Counties in west-central Montana (Baumann et al. 1977).
Observations in Montana Natural Heritage Program Database
Number of Observations:
(Click on the following maps and charts to see full sized version)
Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
The larvae of this species are found in small, high gradient mountain streams (Newell and Minshall 1978), and are indicators of the Pristine Mountain Stream Ecological System (Stagliano 2005). Most Nemouridae species are shredders or collector-gatherers utilizing coarse plant materials (Merritt and Cummins 1996).
Merritt and Cummins (1996) report that members of this family are trophically shredder-detritivores; eating large particulate organic materials such as detritus, leaves and plants.
Zapada frigida has been described as a rare species due to habitat specificity (Baumann et al. 1977) and is never abundant when collected. It is globally secure and unranked in (SNR) in Montana.
Literature Cited Above
Legend: View Online Publication Baumann, R.W, A.R. Gaufin, and R.F. Surdick. 1977. The stoneflies ( Plecoptera) of the Rocky Mountains. American Entomological Society, Philadelphia. Cummins, K.W. and R.W. Merritt. 1996. Ecology and distribution of aquatic insects. Chapter 6, pages 74-86 in R.W. Merritt and K.W. Cummins (eds.) An Introduction to the Aquatic Insects of North America. Third Edition. Kendall/Hunt Publishing Company, Dubuque, Iowa. 862 pp. NatureServe. 2006. NatureServe Explorer: An on-line encyclopedia of life [web application]. Version 4.7. Arlington, Virginia. Newall, R.L., and G.W. Minshall. 1978. An annotated list of the aquatic insects of southeastern Idaho. Part III. ( Ephemeroptera). Great Basin Naturalist 38(1): 55-58. Stagliano, D.M. 2005. Aquatic community classification and ecosystem diversity in Montana's Missouri River watershed. Prepared for Bureau of Land Management. Montana Natural Heritage Program, Helena, MT. 65 pp. plus appendices. Additional References
Legend: View Online Publication Do you know of a citation we're missing? Burns, D.C. 1973. Plecoptera of the West Fork of the West Gallatin River and factors influencing their distribution. M.Sc. Thesis. Bozeman, Montana: Montana State University. 71 p. Garrett, P.A. 1973. The distribution and abundance of aquatic insects in the Middle West Gallatin drainage. M.Sc. Thesis. Bozeman, Montana: Montana State University. 60 p. Muhlfeld, C.C., T.J. Cline, J.J. Giersch, E. Peitzsch, C. Florentine, D. Jacobsen, and S. Hotaling. 2020. Specialized meltwater biodiversity persists despite widespread deglaciation. Proceedings of the National Academy of Sciences May 2020, 202001697; DOI: 10.1073/pnas.2001697117 Additional Sources of Information Related to "Insects"