30 
Rowland M. Shelley 
Crawford (UWBM). Kittitas Co., Cle Elum, juv., 7 May 1933, W. 
W. Baker (NMNH). Yakima Co., White Swan, 6 juvs., 7 May 1933, 
W. W. Baker (NMNH). 
OREGON: Clatsop Co., Youngs R. Falls Pk., nr. Olney, F, 
4 June 1991, R. M. Shelley (NCSM); and 3 mi (4.8 km) SE Olney, 
M, 27 November 1971, E. M. Benedict (WAS). Lane Co., 22 mi 
(35.2 km) NE McKenzie Bridge, M, F, 16 October 1971, E. M. 
Benedict (WAS). 
The following literature record to Scytonotus sp. is considered 
referrable to S. bergrothi : 
USA: WASHINGTON: Island Co., Sunnyside (Causey 19546). 
Remarks — The long, barbed, acicular projection on the medial 
face of the endomerite curves ventrad distally in all males that I 
examined. Its length and curvature seem to be unique to, and pos- 
sibly diagnostic of, S. bergrothi, as the structure is much shorter 
and at most only slightly curved in males of the other western 
species. 
As stated on the vial label and reported by Attems (1931), 
the type locality of S. pallidus, a synonym of S. bergrothi, is 
Mukilteo, Snohomish County, Washington, and not Vancouver Is- 
land, British Columbia, as reported by Chamberlin and Hoffman 
(1958). Attems (1931, 1940) confusingly records Nanaimo, Vancouver 
Island, under S. pallidus but states in the prior work that this is 
the locality of S. insulanus. I have not seen any males of S. bergrothi 
from Nanaimo, but Parksville and Errington are very near, and S. 
bergrothi as well as S. insulanus should be expected at Nanaimo. 
Scytonotus insulanus and S. bergrothi occur sympatrically from 
southwestern British Columbia to just south of the Columbia River 
in Clatsop County, Oregon, although the latter is much more abun- 
dant in Washington. South of the Columbia River, only S. insulanus 
has been taken in the Coast Range and Willamette Valley of Or- 
egon to about the level of Corvallis, where it overlaps slightly the 
northern periphery of S. simplex (Figs. 19-20, 31). The species, 
therefore, tend to replace each other in western Oregon and Wash- 
ington, and as stated previously only S. insulanus is known defi- 
nitely from northern British Columbia and Alaska. Neither species 
has been encountered on the Queen Charlotte Islands, nor have uni- 
dentifiable juveniles been taken there. As this archipelago has been 
intensively sampled by arthropod biologists for many years, it seems 
that Scytonotus does not occur there. 
