92 
Thomas C. Barr, Jr. 
X 0.84 wide, pronotum 0.92 long X 1.06 wide, elytra 2.85 long X 1.79 
wide, antenna 3.32 long. 
Distribution.— One hundred seven specimens seen as follows. TEN- 
NESSEE: Smith County.— Neil Fisher Cave (type locality), New Salem 
Cave. Putnam County.— Bartlett, Bowen, Hargis, Jared Hollow, Petty, 
and Sadler caves. Jackson County.— Burial, Harris, Mahaney, Medley, 
and Carter caves (see Barr 1961 for cave locations). 
Discussion . — This moderately large, robust, convex species is closely 
similar to P. cumberlandus but occurs on the opposite (south, left) side of 
Cumberland River. It is readily differentiated by characters given in the 
diagnosis. In the northern part of its range, P. productus is sympatric and 
syntopic with P. simplex, and at the southern margin of its range it is con- 
junct with P. farrelli Barr ( robustus group), which occurs in nearby John 
Fisher Cave (Barr 1962). Superficially both P. cumberlandus and P. 
productus resemble species of the robustus group, but their distinctive 
aedeagi readily differentiate them as members of different groups. 
Although a few other species of the cumberlandus group are rather 
robust, they are less convex and do not have the prominent humeri of P. 
cumberlandus and P. productus. Neither species is obligatorily riparian, 
although both are hygrophilous and somewhat seasonal in caves influ- 
enced by cold air flowing into large entrances. The niche filled appears to 
be much like that of P. robustus and its allies (other than P. valentinei 
Jeannel, which is riparian), and this ecological similarity may explain the 
conjunct, nonoverlapping ranges of P. farrelli and P. productus. 
Pseudanophthalmus tiresias Barr, new status 
Pseudanophthalmus tiresias tiresias Barr 1959:16. Type locality, Indian 
Grave Point Cave, Dekalb Co., TN. 
This is a species found in mesic cave microhabitats, occurring on wet 
rotting wood and muddy floors rich in organic matter in the type locality 
cave and in nearby Fox Cave. It is sympatric with P. farrelli, which is 
conspicuously larger (see Barr 1962). 
Pseudanophthalmus catherinae Barr, new status 
Pseudanophthalmus tiresias catherinae Barr 1959:17. Type locality, Petty 
Cave, Marshall Co., TN. 
Known only from the type locality along the banks of the cave 
stream, where it is moderately abundant. The species is rather robust but 
more depressed than P. cumberlandus. 
