Appalachian Pseudanophthalmus 
69 
Measurements (mm). — Holotype, total length 3.84, head 0.83 long X 
0.70 wide, pronotum 0.67 long X 0.80 wide, elytra 2.77 long X 1.54 wide, 
antenna 2.56 long, aedeagus 0.59 long. 
Discussion. — This species was erroneously determined as P. hubrichti 
in an earlier paper (Barr 1965). The caves inhabited by the two species are 
in different strike bands of limestone and are separated by major faults. 
Head and pronotum are closely similar in the two species, but the nar- 
rower elytra with more angular humeri and deeper and impunctate striae 
offer useful diagnostic characters. The aedeagi of the two species are 
rather different but suggest close relationship. J. R. Holsinger collected 
two males from Greears Sweet Potato Cave, Scott County, Virginia (Fort 
Blackmore IVi Quadrangle 36^49'03" X 82^3 IT 8"), which I have 
assigned to this species but have not made paratypes; this small cave is 
about 13 km southwest of Banners Corner Cave in the same band of 
Maryville limestone. 
Pseudanophthalmus egberti Barr 
Barr 1965:49. 
Length 3. 4-4.2, mean 4.0 ± SD 0.1 mm (N = 9). Slender, depressed, 
shining. Head a little longer than wide, labrum singly emarginate. Prono- 
tum strongly cordiform with deep antebasal sinuation, sides slightly di- 
vergent at base, hind angles correspondingly large, sharp, and acute; apex 
truncate, base rectilinear. Elytra slender, depressed, prehumeral borders 
a little oblique yet humeri fairly prominent, striae deep, intervals convex, 
only striae 1-3 complete but traces of 5-8 present; apical groove subparal- 
lel, rather short, running to 3rd stria, clearly bisinuate in 6 of 10 speci- 
mens examined. Aedeagus 0.61-0.65 mm long (greater lengths in the 
original description are a typographical error), moderately arcuate with 
well-formed basal bulb, apex briefly attenuate and slightly deflexed. 
Pseudanophthalmus egberti is known only from two caves in the New 
River valley of Giles County, Virginia: Starnes Cave (type locality) and 
Giant Caverns (=Hopkins Cave). 
Pseudanophthalmus quadratus Barr 
Barr 1965:60. 
Closely similar to P. egberti but a little less slender, hind angles right, 
elytral striae shallow, intervals less convex, apical groove bisinuate; 
aedeagal apex produced and bluntly rounded, not deflexed. Length 3.4- 
3.7 mm, aedeagus 0.66-0.67 mm. This species was erroneously placed in 
\hQ gracilis group (Barr 1965) but is much closer to P. egberti and belongs 
here. It is known from three males taken in Straleys Cave in the valley of 
