Kathroperla perdita Banks 1920

Kathroperla perdita Banks

Longhead Sallfly

(Figs. 1-8)

Kathroperla perdita Banks 1920:315.

Holotype ♀ (Museum of Comparative Zoology), Kaslo, British Columbia

Kathroperla perdita: Needham & Claassen, 1925:132. Description of ♂

Kathroperla perdita: Stark & Surdick, 1987:530. SEM image of egg

Material examined. CANADA: ALBERTA: Lusk Creek, Kananaskis Forest Experiment Station, Seebe, 18 June 1968, H.J. Teskey, 1♂, 1♀ (BYUC). BRITISH COLUMBIA: Chilliwack River, Vedder Crossing, 24 April 1938, S. Spencer, 1♀ (BYUC). Preacher Creek, Crawford Creek Rd, 31 May 2010, B. Stark, R.W. Baumann, 1♂ (BPSC). Princeton, Whip-saw Creek, 26 May 1968, C.H. Lindroth, 1♂ (USNM). Summit Creek, Hwy 3, Blazed Creek Rest Area, 2 June 2010, R.W. Baumann, B.P. Stark, 1♀ (BYUC). USA: ALASKA: Juneau, tributary of McGinnis Creek, 8 June 1979, R.N. Vineyard, 1♀ (BYUC). Juneau, Granite Creek, 58.3184°N, 134.3236°W, 25 June 2011, J.P. Hudson, 2♀ (BYUC). Taiya River north of Skagway, 1 July 2011, J.P. Hudson, 1♂ (BYUC). Prince of Wales Island, Tracadora Creek, 17 June 1996, unknown collector, 1♀ (BYUC). CALIFORNIA: Butte Co., Butte Creek, 1 mi above Cherry Hill Campground, 9 May 1987, Stanger, Maxfield, 1♂, 4♀ (BYUC). El Dorado Co., Long Canyon Creek, 3 mi E Grizzly Flats, 16 May 1998, B. Stark, C. R. Nelson, S.W. Szczytko, R. Bottorff, I. Sivec, 1♀ (BPSC). El Dorado Co., North Cosumnes River, Sciaroni Crossing, Grizzly Flats, 21 April 1984, R. Bottorff, 3♂, 2♀ (RLBC). Humboldt Co., creek, 0.3 mi W Ruby Creek, Hwy 299, 25 April 1987, R.W. Baumann, B. Stark, C. R. Nelson, S. Wells, 1♀ (BYUC). IDAHO: Bonner Co., Granite Creek, Pend Oreille Lake, 15 May 1958, S.G. Jewett, Jr. 1♀ (BYUC). MONTANA: Broadwater Co., Deep Creek, Hwy 12, 15 May 1969, M.L. Miner, 1♂ (BYUC). Cascade Co., Belt Creek, 19 mi SE Monarch, 7 July 1966, J. R. Grierson, 1♀ (USNM). Fergus Co., Windsor Creek, Windsor Rock Campground, 3 July 1952, R. Hays, 3♂ (BYUC). Flathead Co., McDonald Creek, Glacier National Park, 15 July 1967, A. R. Gaufin, 1♀ (BYUC). Gallatin Co., Hyalite Creek, 1 June 1951, R. Hays, J. Bailey, 1♂, 1♀ (BYUC). Glacier Co., Swift Current Creek, Glacier National Park, 24 July 1967, A. R. Gaufin, 1♂ (BYUC). Glacier Co., Waterton River, Glacier National Park, 23 July 1970, C. Yarmoloy, 1♀ (BYUC). Lake Co., Yellow Bay Creek, 25 April 1970, R. Haick, 1♀ (BYUC), 1♂, 3♀ (USNM). Lewis and Clark Co., tributary Blackfoot River near Roger’s Pass, Hwy 20, 17 May 1969, A. R. Gaufin, 1♀ (BYUC). Lincoln Co., Ross Creek, FR 398, Cedars Scenic Area, 27 April 2008, R. Durfee, 3♂, 3♀ (CSUC). Mineral Co., Little Joe Creek, Little Joe Campground, 25 May 2010, B. Stark, R.W. Baumann, 2♀ (BPSC). Missoula Co., Butler Creek, Snow Bowl, 12 May 1973, R.A. Haick, 9♂, 4♀ (USNM). Missoula Co., Grant Creek, Snow Bowl Rd, 9 May 1969, D.S. Potter, 1♀ (BYUC). Missoula Co., Rattlesnake Creek, Missoula Reservoir, 16 May 1969, R.W. Baumann, 1♂ (BYUC). Powell Co., Arrastra Creek, Hwy 200, 10 May 1969, M.L. Miner, 5♀ (BYUC). Ravalli Co., Roaring Lion Creek, 18 May 1998, A.L. Sheldon, 5♂ (BYUC). Ravalli Co., South Gash Creek, Rd 737, 30 May 1996, A.L. Sheldon, 1♀ (BYUC). OREGON: Deschutes Co., Tumalo Creek, below Tumalo Falls, 11 June 2004, R.W. Baumann, B.P. Stark, 2♂ (BYUC). Douglas Co., Muir Creek, Hwy 230, 19 May 1982, B. Stark, D. Zeigler, 1♂, 1♀ (BPSC). Hood River Co., Cold Spring Creek, nr. Elk Meadows, 23 July 1983, G. R. Fiala, 1♀ (BYUC). Linn Co., Puzzle Creek, Marion Forks Rd, 2 June 2000, B. Stark, I. Sivec, M.C. Zúñiga, 1♂ (BPSC). Umatilla Co., 11 mi E Milton-Freewater, 16 April 1952, S.G. Jewett, Jr., 2♀ (BYUC). Union Co., Five Points Creek, 28 April 1961, S.G. Jewett, Jr., 13♂ (USNM). Union Co., Five Points Creek, Grande Ronde River below Hilgard Junction, 18 June 1977, R.W. Baumann, 1♀ (BYUC). Union Co., Grande Ronde River, Bird Track Springs Campground, Hwy 244, 45° 18.027’N, 118° 18.427’W, 15 May 2014, B. Stark, A.B. Harrison, 1♀ (BPSC). WASHINGTON: Chelan Co., Bridge Creek, Hwy 20, Rainy Pass, 17 June 2004, B. Stark, R.W. Baumann, 1♀ (BPSC). King Co., Green River, about 10 mi abv Lester, 27 May 1969, R.W. Baumann, M.L. Miner, 1♀ (BYUC). Lewis Co., Horse Creek, FR 52, Gifford Pinchot National Forest, 15 May 2001, B.C. Kondratieff, 1♂, 1♀ (CSUC). Lewis Co., Stevens Creek, Hwy 706 E of Louise Lake, 15 June 1969, R.W. Baumann, 1♀ (BYUC). Lewis Co., Sunbeam Creek, Hwy 706, 47° 19’N, 122° 06’W, Mt. Rainier National Park, 21 June 2003, B.C. Kondratieff, R.E. Zuellig, J. Schmidt, 1♂ (CSUC). Okanogan Co., Foggy Dew Creek, 8 mi SW Carlton, 18 July 1995, G. MacKenzie, 1♀ (BYUC). Pierce Co., Fryingpan Creek, Mt. Rainier National Park, 24 May 2003, B.C. Kondratieff, J. Schmidt, 1♂ (CSUC). Pierce Co., White River, Sunrise Rd, Mt. Rainier National Park, 15 June 2001, R. Lechleitner, 1♀ (CSUC). Pierce Co., White River, Hwy 410, 14 May 2001, B.C. Kondratieff, R. Lechleitner, 1♀ (CSUC). Pierce Co., unnamed stream N of Crystal Creek, Hwy 410, Mt. Rainier National Park, 29 May 1997, B.C. Kondratieff, R. Lechleitner, 2♀ (CSUC). Yakima Co., American River, Pleasant Valley Campground, 10 June 2001, D. Strenge, 2♀ (CSUC). Egg. Outline oval. Length ca. 390-410 μm, equatorial width ca. 263-267 μm (Fig. 1). Collar short, wide with sides elaborately dissected; base surrounded by a low, irregularly-multitoothed rim. Anchor mushroom shaped and abundantly covered with globular bodies (Figs. 1, 3). Surface covered with widely-spaced, irregular striae along longitudinal axis; striae composed of linear tubercles ca. 20-25 μm long and ca. 5-10 μm thick (Figs. 2-6). Surface between striae relatively smooth, but bearing a few, scattered globular bodies. Micropyles subequatorial in position, located on modified strial elements (Fig. 2); orifices smaller than width of strial tubercles.

Comments. The images (Fig. 13 in Stark & Surdick 1987; Fig. 1.9 in Stark et al. 1998a) prepared from eggs taken from a Muir Creek, Oregon female collected in May 1982 are consistent with the images presented herein from Montana and Oregon, and also consistent with eggs from California and Washington specimens examined from the sites listed above. One female from Humboldt Co., California had eggs typical of this species, although eggs from other specimens collected in that area were typical of K. takhoma. No eggs were present in specimens examined from Alaska, but one Canadian female from Summit Creek, British Columbia contained eggs which were typical of K. perdita. Scanning electron micrographs (Figs. 7-8) are provided to show the relatively straight anterodorsal margin of the K. perdita male epiproct. In this species and K. siskiyou, described below, the smooth, sclerotized anterodorsal margin is completely black, whereas this structure is usually bicolored with a brown band appearing adjacent to the marginal black pigmented area in K. takhoma. The anterodorsal margin of the epiproct of K. perdita is also straighter than either of the other species.

Distribution. The species is reported from Canada: Alberta and British Columbia, and the United States: Alaska, California, Idaho, Montana, Nevada, Oregon and Washington (Baumann et al. 1977; Kondratieff & Lechleitner 2002; Stark & Surdick 1987; Stewart & Oswood 2006; Stewart & Ricker 1997; Stewart & Stark 2002).