200 
Psyche 
[September 
Rhiscosomides benedictae n. sp. 
Figs. 10-14 
Types: Male holotype and female paratype from woods behind 
Marine Biological Institute, Charleston, Coos Co., Oregon, col- 
lected from a Berlese sample of spruce, alder and cedar duff by 
E. M. Benedict, 30 April 1967. 
Description : Male holotype; size and nonsexual characters as 
described for R. mineri. 
Anterior gonopods: anterior coxal processes long (Fig. 10), 
slightly curved, terminating in lateral and dorsal teeth and blunt 
mesal lobe; lateral branch small lamella. Posterior coxal processes 
with anterior branch small, rodlike, mesal branch upright, of mod- 
erate size, posterior branch relatively large, membranous anterior 
face. Telopodites lobed, interlocking with lateral extensions of an- 
terior coxal processes. Ninth legs (Fig. 14) of usual form. 
Female paratype typical of genus; process from second sternite 
(Fig. 12) thin, postgenital structures as in Fig. 13. 
Distribution: Oregon: Lincoln Co., State Forest Camp east of 
Waldport, 30 October i960, D. R. Malcolm, $ ; Benton Co., Rt. 
34 at Benton Co. line, Berlese of maple and alder duff, 30 October 
i960, Malcolm, $$ 99 ; Douglas Co., 3.2 mi northeast of Scotts- 
burg, elev. 400', Berlese of rotted wood and bark, 1 1 December 
1971, E. M. Benedict, c?¥$; Coos Co., 4 mi east, 2 mi south of 
Allegany, Weyerhauser Co. Millicoma Tree Farm, company road 
6000, Berlese of rotted wood from riparian zone of Fall Creek, 
between steep canyon walls, 21 November 1971, E. M. Benedict, 
$ $ 99 . 
Notes: Fig. 11 illustrates a slight variation in the form of the 
termination of the anterior coxal process of the anterior gonopod of 
the Benton Co. specimen. Those from the Millicoma Tree Farm 
are similar to this; at that place R. benedictae is nearly syntopic with 
R. josephi, which was taken from bark chips on a clear-cut slope, 
while R. benedictae was taken from litter in a riparian zone. It 
would be interesting to further explore the ecological situation be- 
tween these two species. 
Rhiscosomides malcolmi n. sp. 
Figs. 15, 16 
Types: Male holotype, female paratypes from 13 mi north, 5 mi 
west of Brookings, Curry Co., Oregon, collected 10 March 1972 
