Appalachian Pseudanophthalmus 
11 
behind level of anterior marginal setae, widths at apex and base subequal 
and 0.75 greatest width; sides feebly sinuate in basal fifth, anterior angles 
subdued, hind angles large, acute, slightly produced and elevated, second- 
ary angles of base prominent but broadly rounded; disc with 1-3 (usually 
2) long setae each side in addition to sparse, rather long pubescence. 
Elytra 1.7 times longer than wide, subparallel but rather broad, humeri 
prominent but not sharp, prehumeral borders oblique to midline, apexes 
broadly rounded; scutellar stria long, attaining suture at level of 4th 
umbilicate puncture, striae 1-3 shallowly impressed, intervals subconvex 
with 2-3 rows of pubescence, outer striae irregular and progressively 
obsolescent, apical recurrent groove elongate and bisinuate, joining 3rd 
stria via crosier in advance of anterior apical puncture. Aedeagus 0.67- 
0.74, mean 0.69 ± 0.03 mm long (N = 8). moderately arcuate, basal bulb 
large but not sharply set off from median lobe; apex of median lobe 
slightly swollen, then briefly reflexed and obliquely truncate, buttonlike, 
at tip; right copulatory piece canoe-shaped, partially enfolding elongate- 
triangular, minutely spinulose, shorter left piece; internal sac weakly 
armed with minute spines; parameres rather stout, with only 3 apical 
setae. 
Type series. — Holotype male (American Museum of Natural History) 
and 45 paratypes, Flannery Cave, Scott Co., Virginia (Clinchport IVi 
Quadrangle, 36°42'28" x 82°43'30"), 1 August 1964, S. B. Peck and J. R. 
Holsinger. 
Measurements, (mm) — Holotype, total length 4.64, head 1.02 long X 
0.76 wide, pronotum 0.86 long X 0.92 wide, elytra 2.55 long X 1.45 wide, 
antenna 2.96, aedeagus 0.71. 
Discussion. — Pseudanophthalmus seclusus is known from a series of 
caves in the Rye Cove karst near Clinchport, Scott County, Virginia, 
including Flannery (type locality), McDavid (traversed by the Flannery 
Cave stream). Alley No. 2, Cox Ram Pump, Pond, Hill, and Kerns No. 1 
caves. Most of the caves are developed along the eastern flank of the Rye 
Cove syncline and were described by Holsinger (1975). A total of 54 
specimens was seen. The species is abundant on mud banks along the 
stream in Flannery Cave. Four specimens were taken in McDavid Cave 
and only one or two each in the other caves cited above. The form of the 
aedeagus, with reflexed and obliquely truncate, buttonlike apex, is highly 
diagnostic. Superficially P. seclusus is closest to P.pallidus, which occurs 
along the Powell River in Claiborne County, Tennessee, but it is larger, 
has a longer pronotum, and the elytral apexes are quite broadly rounded 
rather than attenuate as in P. pallidus. 
