1967] 
Barr — New Pseudanophthalmus 
167 
water temperature was 8°-iO° C. The stream flows over sandstones 
and shales throughout its short length, and in the area where the 
beetles were collected it traverses a second-growth, mixed hemlock 
and deciduous forest with an estimated gradient of 100 meters per 
kilometer. The nearest exposures of limestone and consequently the 
nearest known caves are in the vicinity of Lobelia and Hillsboro, 
7 to 9 kilometers to the south, and the vicinity of Buckeye, 10 kilo- 
meters east. Troglomorphic collembolans — Sinella hoffmani Wray 
( det. K. Christiansen) — were found under the same stones with 
the beetles, and are here recorded for the first time outside of a cave. 
The possibility that the beetles were washed out of one of these 
caves, in the manner described by Barr and Peck (1965) for an 
Alabama cave Pseudanophthalmus sp., is easily excluded, since the 
caves are situated at elevations 250 to 300 meters lower than the 
Kennison Mountain locality, and are in different drainage basins. 
Furthermore, examination of more than 1000 specimens of Pseuda- 
nophthalmus spp. from caves of the Greenbrier valley has not revealed 
the presence of the species taken at Kennison Mountain. The oc- 
currence of 3 specimens in close proximity to each other is additional 
evidence that the habitat is a normal one for the species. 
The new species is most closely similar to P. fuscus Valentine 
(1931 : p. 254), a species which inhabits caves of Pocahontas, Green- 
brier, and Monroe counties, West Virginia, south of the Yew Moun- 
tains. It is readily differentiated, however, on the basis of the male 
genitalia and on other characters cited below. Although nominate 
P. fuscus shows no trace of an eye rudiment seen in the new species, 
undescribed subspecies of P. fuscus (or closely similar species) have 
a similar rudiment and the diagnosis must be made on the basis of 
other characters. P. fuscus is larger, more slender, and more densely 
pubescent, and the apex of its aedeagus is distinctively produced and 
more prominently knobbed. 
Pseudanophthalmus sylvaticus Barr, new species 
Figs. 1, 2 
Closely similar to P. fuscus Val., differing in smaller size, less 
rounded head, the entirely glabrous pronotal disc, the more subdued 
anterior angles of the pronotum, the more rounded margins of the 
pronotum with shorter oblique portion and deeper antebasal sinua- 
tion, the more distinct longitudinal striae of the elytra, the less closely 
spaced humeral set of umbilicate punctures, the thicker and shorter 
segments of the antennae, and the shorter aedeagus without con- 
spicuously produced and knobbed apex. 
