36 
Rowland M. Shelley 
Collum much narrower than succeeding tergites, not covering 
epicranium, with about six transverse rows of setose tubercles, mar- 
gins smooth. Remaining tergites with around four rows of setose 
tubercles, latter low and flattened, only slightly elevated above metater- 
gal surface, poorly demarcated from each other; setae relatively long 
and slender, parallel-sided for most of length, tapering distad, many 
apically falcate, curving caudad. Paranota narrow but distinct, sub- 
parallel to substrate, margins lightly scalloped, notches sharpest on 
anteriormost tergites, vestigial on segments 5 and 9 and absent from 
segments 6-8 of females. Epiproct short, subtriangular, setae very 
long and conspicuous, tubercles barely detectable. 
Sterna generally granular in appearance, without modifications, 
postgonopodal sterna with slight bicruciform impressions. Tibiae of 
13th legs in males with short, glabrous spurs on outer margins; 
legs 12-15 with strong, rounded lobes in same locations; legs 16- 
18 with lobes diminishing progressively, absent on caudal legs. 
Gonopodal aperture broad, obcordate, sides strongly elevated 
above metazonal surface. Gonopods in situ with telopodites leaning 
anteriad over coxae then curving broadly ventrocaudad over caudal 
margin of aperture, subparallel to each other. Gonopod structure as 
follows (Figs. 17-18). Coxa relatively small and narrow, with large 
lobe arising from medial surface extending over base of telopodite. 
Latter relatively small. Tibiotarsus of normal shape and appear- 
ance, curving broadly caudad. Endomerite subequal in length to that 
of tibiotarsus, closely appressed to latter for about half of length, 
diverging distad, with short, barbed, acicular projection arising ba- 
sally on inner side of medial surface, terminating well short of 
outer margin of endomerite; inner surface with relatively long, sharply 
acuminate spur just distal to, and slightly shorter than, pulvillus, 
latter relatively long, narrowing slightly distad, apically blunt; me- 
dial lamina expanding rapidly into large, broadly rounded lobe, ex- 
tending for most of length of structure, overhanging and extending 
well beyond inner margin of endomerite; distal lamina without modi- 
fications, inner and outer margins smoothly sublinear, latter angling 
rapidly to subacuminate termination with inner margin; lateral lamina 
relatively long, arising basally and extending for most of length of 
endomerite, expanding slightly proximad and distad. 
Ecology — The available samples were taken from “mixed 
broadleaf duff.” 
Distribution — Known only from Klamath County, Oregon (Fig. 
20). The following sample was examined in addition to the types: 
Klamath Falls vie., F., March 1972, J. Schuh (FSCA). 
Remarks — With no modifications on the distal lamina, only a 
broad flange on the medial one, and only two narrow expansions 
