Appalachian Pseudanophthalmus 
75 
Type series. — Holotype male (American Museum of Natural History) 
and one female paratype, New Mammoth Cave, 1.5 km E Elk Valley on 
the north side of Pine Mountain, Campbell Co., Tennessee (Ivydell IV 2 
Quadrangle, 36°29'03'' x 84°13'46"), 8 August 1979, T. C. Barr, Jr. Two 
paratypes, same cave, 16 September 1979, T. C. Barr, Jr. Seven para- 
types, same cave, 21 November 1979, T. C. Barr, Jr., and J. R. Holsinger. 
Measurements (mm). — Holotype, total length 4.80, head 0.98 long X 
0.78 wide, pronotum 0.84 long X 0.88 wide, elytra 2.67 long X 1.49 wide, 
antenna 3.31, aedeagus 0.71. 
Discussion. — This species, isolated within the Allegheny Plateau but 
near its eastern front like P. jonesi, appears more closely related to P. 
jonesi than to other species of the group. Grassy Cove and Elk Valley are 
approximately 90 km apart. New Mammoth Cave has a large, rather dry 
upper level several hundred meters long; small crevices through break- 
down lead down to a lower stream passage at various points. The cave is 
more extensive than indicated by the map reproduced in Barr (1961:92). 
The beetles are very hygrophilous, all of them taken from very wet, 
soggy, rotten wood at the edge of the stream. One small log, its end actually 
immersed in the stream, yielded a beetle on each of three collecting visits 
to the cave; a large colony of collembolans, Folsomia Candida, was found 
just inside the outer layers of the log and was a probable food source for 
the beetles. 
Pseudanophthalmus rogersae, new species 
Fig. 41 
Etymology . — Patronymic honoring Mrs. Mary Rogers, Pine Moun- 
tain Settlement School. 
Diagnosis. — Resembles P. scutilus in the singly emarginate labrum, 
indistinctly bisinuate apical groove, and slightly ventricose elytra, differ- 
ing in cordiform pronotum with abrupt lateral sinuation and large hind 
angles, regular and shallowly impressed elytral striae, and subconvex 
intervals. 
Description. — Length of unique holotype 4.65 mm. Form elongate, 
slender, convex, appendages elongate; rufotestaceous, dull shining, pubescent; 
elytral microsculpture confused, isodiametric in striae and weakly trans- 
verse on intervals. Head a fourth longer than wide, labrum singly emar- 
ginate, maxillary palp with fourth segment about 0.2 longer than penul- 
timate segment; antenna 0.7 body length. Pronojum cordiform, 0.9 as 
long as wide, widest in apical third behind anterior marginal setae, widths 
