60 
Thomas C. Barr, Jr. 
striae very fine and regular, intervals flat, at least anterior to posterior 
discal puncture (in 2 specimens striae deepen toward apex); apexes atten- 
uate, not separately rounded. Aedeagus of a male from Saltpeter Cave 
0.47 mm long, similar in general form to that of P. delicatus but a little 
larger. 
This species is known only from caves in the band of Newman (Missis- 
sippian) limestone at the base of Cumberland Mountain (the Allegheny 
front) in western Lee County, Virginia. J. F. Quinlan (pers. comm.) has 
traced subterranean stream flow from a point near Ewing, Virginia, to 
Cudjos Cave, the type locality for P. hirsutus, a distance of about 25 km. 
In July, 1979, J. R. Holsinger and Virginia Tipton collected six specimens 
of this species in Cumberland Mountain Saltpeter Cave, about 2.5 km 
east of (and probably connected with) Cudjos Cave. 
Pseudanophthalmus delicatus Valentine, new status 
Figs. 16, 21 
Pseudanophthalmus hirsutus delicatus Valentine 1932:270. Barr 1965:46 
(in part). 
Compared with P. hirsutus, smaller (P<0.02) 3. 1-4.2, mean 3.7 ±SD 
0.3 mm (N = 31); pronotum a little more transverse with less prominent 
anterior angles, sides slightly but distinctly sinuate before sharp right or 
slightly acute hind angles; elytral striae deeper. Elongate, subparallel, 
depressed, pubescent. Head a little longer than wide, labrum with low 
median lobe, last segment of maxillary palp one-fourth longer than 
penultimate segment; antenna rather short, 0.6 body length. Pronotum 
0.75-0.80 as long as wide, widest about apical sixth behind anterior mar- 
ginal setae, anterior angles fairly prominent (but less so than in hirsutus), 
sides convergent but shallowly and barely perceptibly sinuate just before 
more or less right hind angles (obtuse in hirsutus)', disc with 3 long setae 
each side. Elytra 1.7 times longer than wide, apexes not separately 
rounded, intervals weakly subconvex, apical groove elongate, bisinuate, 
joining 3rd stria via crosier. Aedeagus 0.39-0.45, mean 0.40 ± SD 0.02 
mm long (N = 8), slender and weakly arcuate, basal bulb not sharply set 
off from median lobe, apex very briefly attenuate and bluntly rounded; 
copulatory pieces about as in P. engelhardti but left piece quite small; 
parameres with 3 apical setae. 
In a previous study of Appalachian valley cave beetles (Barr 1965) I 
misinterpreted a series of P. delicatus from Jones (=Ewing) Saltpeter 
Cave as P. / 2 . hirsutus. Actually P. hirsutus is confined to the cave system 
at the base of Cumberland Mountain, and P. delicatus inhabits a number 
of caves in Ordovician limestones along the Powell River valley in central 
Lee County, Virginia. Furthermore, there is a distinct geographic gap 
