46 
Thomas C. Barr, Jr. 
Discussion. — This rare species coexists in Fisher Cave with P. longi- 
ceps (jonesi group), which is much more abundant (19:2). On 17 July, six 
beetles were collected, one of which was the female holotype of P. decep- 
tivus. On 30 September, 14 beetles were collected, one of which was the 
teneral male paratype, which was found under rocks at the bottom of the 
steep talus slope just inside the entrance of the cave. Morphologically P . 
deceptivus is very similar to P. engelhardti, which inhabits English Cave 
45 km west of Fisher Cave. At present 10 pairs of Pseudanophthalmus 
species are known to coexist in the same cave systems in the Appalachian 
valley (excluding the ecologically and geologically very different Green- 
brier valley of West Virginia), in addition to the unique case of three 
species coexisting in English Cave. 
Pseudanophthalmus wallacei, new species 
Figs. 1,6 
Etymology . — Patronymic honoring Mr. Richard L. Wallace, Knox- 
ville, Tennessee, for his assistance in collecting this rare species. 
Diagnosis. — Closely similar to P. engelhardti, differing in the sharp, 
right (rather than obtuse) hind angles of the pronotum and broader elytra 
(L/ W 1.6 vs. 1.7 in P. engelhardti)', aedeagal apex narrowly produced and 
truncate, without ventral cusp. 
Description. — Length 4. 3-4. 6, mean 4.5 mm (N = 4). With general 
form, color, microsculpture, and pubescence of P. engelhardti. Head 
rounded, labrum rather deeply and singly emarginate; antenna about 0.6 
body length. Pronotum transverse-cordiform, 0.85 as long as wide, wid- 
est in apical fifth at level of anterior marginal setae, anterior angles a little 
more prominent than in P. engelhardti, hind angles large, sharp, about 
right, base behind angles perpendicular to midline (rather than inclined 
forward as in P. engelhardti) and distinctly though shallowly emarginate 
between angles. Elytra 1.6 times longer than wide, broader and slightly 
more convex than in P. engelhardti, margins a little more rounded; pre- 
humeral borders oblique, humeri rounded but still rather prominent; 
apical groove elongate, bisinuate, with crosier running to 3rd stria at or 
slightly in advance of 7th umbilicate puncture. Aedeagus of paratype 0.59 
mm, strongly arcuate, apex as in P. holsingeri. 
Type series. — Holotype female (American Museum of Natural His- 
tory) and one paratype female. Weaver Cave, 3.0 km N Clinton, Ander- 
son Co., Tennessee on the southeast (left) side of Clinch River (Norris 
71 / 2 ' Quadrangle, 36°08'19" X 84°06'55"), 3 February 1980, R. L. Wallace, 
One female paratype, same cave, 19 April 1965, J. A. Payne; one female 
paratype, same cave, 1 October 1980, R. L. Wallace; one male paratype, 
same cave, 1 March 1981, R. L. Wallace. 
Measurements (mm). — Holotype, total length 4.32, head 0.84 long X 
