Type Material

            Holotype: “Male holotype from pitfall trap at 7900 ft. elevation on the Saratoga Stratton Exp. Watershed, Cargon Co., Wyoming between July 17 and 21, 1973 by John Schmid, in AMNH” (Muma, 1989, p. 10).

            Measurements: Male holotype: Total length, 19.0 mm. Chelicerae, 4.7 mm length; 2.33 mm width. Propeltidium, 2.3 mm length; 3.4 mm width. Palpus, 16.0 mm length; CL/CW=2.04 width. Leg 1, 12.0 mm length; PW/PL=1.47 mm width. Leg 4, 20.0 mm length; A/CP=6.86 width; CP=7.0 width.

            Ctenidia Description: “2 short, flat, widely spaced abdominal ctenidia on first post-stigmatic sternite, figure 3” (Muma, 1989, p. 10).

            Chelicerae Description: “Structure similar to E. scaber and other species with a wide, shallow fondal notch…Cheliceral dentition shown in figure 4, which also shows ECCS at 140x normal light magnification” (Muma, 1989, p. 10). 

Diagnosis: “Species distinguished from closely related E. scaber and E. mormonus by 2 short, flat abdominal ctenidia and entirely pale legs and palpi. Three species of group are known to have a wide, shallow fondal notch. They are mostly easily separated by number and form of abdominal ctenidia, presence or absence of palpal scopula and coloration of legs and palpi” (Muma, 1989, p. 10). 

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