28 
Rowland M. Shelley 
on the distal lamina also vary, and the flange below the former 
and the lobe on the lateral lamina are narrower on some males. 
Ecology — Labels with preserved samples indicate that S. bergrothi 
was taken from the following microhabitats: alder litter, under wet 
bark of decaying logs by ponds, under bark of Douglas-firs, and 
moss on tree trunks. 
Distribution — Known definitely from southern Vancouver Island 
and the mainland of southwestern British Columbia to the north- 
western corner of Oregon, with an allopatric population some 151 
mi (251 km) to the south in the northeastern corner of Lane County. 
The range also extends across the crest of the Cascades onto the 
eastern foothills in Kittitas and Yakima counties, Washington (Figs. 
19-20). Specimens were examined as follows: 
CANADA: BRITISH COLUMBIA: VANCOUVER ISLAND: 
Parksville, 10 juvs., 17 September 1935, R. V. Chamberlin, W. Ivie 
(NMNH). Cameron L., 2M, 15 September 1935, R. V. Chamberlin, 
W. Ivie (NMNH). Errington, 2M, 1 October 1951, collector un- 
known (NMNH). Sooke, Sooke Harbor, M, 9 February 1969, E. 
Thorn (RBCM). Victoria, 2M, 1949, collector unknown (RBCM). 
OTHER ISLANDS: S. Pender /., M, 2 juvs., 1 September 
1955, G. C. Carl (NMNH). 
MAINLAND SITES: Powell L., M, 20 September 1938, R. 
H. Boyd (NMNH). Vancouver, MM, FF, 20 August 1932, 22 and 
26 March 1933, and 3 April 1937, H. B. Leach (NMNH); 4M, 14 
September 1935, R. V. Chamberlin, W. Ivie (NMNH); 5M, 3F, 2 
juvs., 1938, G. J. Spencer (NMNH); and Univ. of BC, M, F, 3 
November 1960, D. G. Bandoni (UBC). Mt. Seymour, F, 31 May 
1931, H. B. Leach (NMNH). North Surrey, 11M, 20 juvs., 6 Sep- 
tember 1965, J. & W. Ivie (AMNH). 
USA: WASHINGTON: San Juan Co., San Juan Islands, 4 
juvs., 1938, collector unknown (NMNH). Whatcom Co., Bellingham, 
Yew St., M, 4 October 1988, R. Crawford (UWBM); and Chuckanut 
Mt., 48.671°N, 122.471°W, 2M, 1 September 1975, R. Crawford 
(UWBM). Skagit Co., Samish R., NW Sedro Woolley, 48.552°N, 
122.295°W, M, 8 September 1977, R. Crawford (UWBM); Island 
Co., Deception Pass St. Pk., 5 juvs., 21 August 1990, R. M. Shelley 
(NCSM); 7.5 mi (12.0 km) NNE Oak Harbor, 3 March 1988, Wright, 
Nelty (NCSM); 2 mi (3.2 km) E Ebey’s Landing, Whidbey, 
48.188°N, 122.70°W, M, F, 4 December 1988, R. Crawford 
(UWBM); and S. Whidby St. Pk., 5 juvs., 21 August 1990, R. M. 
Shelley (NCSM). Mason Co., 11 mi (17.6 km) S Goose Prairie, 
3M, 10 February 1991, K. Dorweiler (UWBM); and S of Hamma 
Hamma R., along US hwy 101, NW Eldon, 47.56°N, 123.072°W, 
