Appalachian Pseudanophthalmus 
61 
between known ranges of the two species in addition to profound struc- 
tural and stratigraphic barriers. Young-Fugate Cave, near Gibson Sta- 
tion, lies between Cumberland Mountain Saltpeter Cave and Jones Salt- 
peter Cave; more than 50 specimens of Pseudanophthalmus have been 
collected in Young-Fugate Cave, but all of them are P. holsingeri (engel- 
hardti group). 
The ubiquity of this small species in the Powell River valley of Lee 
County is surprising. From a point near Ewing northeast to Dryden 
(both in Lee County) the range is approximately 45 km long and 8 to 9 
km wide, lying north of Wallen Ridge and south of Cumberland and 
Stone mountains. Caves from which the species is known include those 
developed in middle Ordovician limestone exposed in broad belts along 
the Powell Valley as well as caves in the Chepultepec member of the 
Knox group. At the southwest corner of its range P. delicatus is sympat- 
ric with P. rotundatus {engelhardti group). It is a species of pool and 
stream margins or (more often) muddy areas with rotting wood. The 
distribution as described is based on examination of 58 specimens from 
13 Lee County caves: Gilley (type locality, 13 topotypes seen). Bowling, 
Cattle, Gallohan No. 1, Garrett, Jones Saltpeter, Molly Wagle, Poor 
Farm, Seal Pit, Smith, Spangler, Sweet Potato, and Unthanks caves. The 
majority of these specimens were collected between 1962 and 1979 by J. 
R. Holsinger, D. C. Culver, T. C. Kane, R. M. Norton, and T.C. Barr. 
Most of the caves were located and described by Holsinger (1975). 
Figs. 20-25: Aedeagi of Pseudanophthalmus spp., hirsutus group, left lateral 
view. 20) P. hirsutus Valentine 21) P. delicatus Valentine 22) P. sericus, n.sp. 23) 
P. digitus Valentine 24) P. ventus, n.sp. 25) P. assimilis, n.sp. 
