1963 ] 
Barr — Ptomaphagus 
55 
Rather widely distributed in the caves of southeastern Grundy 
County (Crystal, Partin Spring, Trussell, Wonder) and eastern 
Franklin County (Crownover Saltpeter, Custard Hollow, Dry, Lost 
Cove, Wet, Ranie Willis), Tennessee, and in the caves of Crow 
Creek Valley in adjacent Jackson County, Alabama (Jesse Elliott, 
Talley Ditch) . Troglobite. 
Ptomaphagus (Adelops) whiteselli n. sp. 
Length 2.8 mm; width 1.3 mm. Color dark brown, testaceous. 
Form oblong, very convex, narrowing posteriorly. Eyes reduced to 
a small, pale areola. Antenna rather short and thickened, extending 
to the base of the pronotum only when laid back; segment I longer 
and wider than II and III, which are subequal; IV, V, and VI sub- 
equal, cylindrical, a little shorter than III, three-fifths as wide as long; 
VII two-fifths longer than VI, subconical, the apical width 5/7 the 
length; VIII transverse, half as long as wide; IX and X subquadrate, 
21/2 times as long as VIII; XI four-fifths longer than X, attenuate 
in apical four-ninths. Pronotum subequal in width to elytra, widest 
just before the base, 3/5 as long as wide; hind angles a little less 
than right, acuminate; base very shallowly emarginate medial to the 
hind angles; disc with transverse strigae superficial, irregular, and 
dissociated. Elytra elongate, subparallel, gradually attenuate to the 
apices, 2 1/2 times as long as pronotum; apex briefly and obliquely 
subtruncate in the male (female unknown) ; strigae oblique to the 
suture. Described from a unique male, the holotype (American 
Museum of Natural History), Sittons Cave, Dade Co., Georgia, 
20 March 1959 (T. C. Barr, Jr., leg.). 
This is the first troglobitic beetle to be described from the caves of 
northwestern Georgia. In the short, thickened antennae the species 
resembles P. laticornis Jeannel, from which it differs in the more 
robust body and longer nth antennal segment. Since P. whiteselli is 
known from a single male and P. laticornis from a single female, the 
two species may not be satisfactorily compared at the present time. P. 
ivhiteselli may be distinguished from P. hat chi, which it resembles in 
convex form and in having the greatest width of the pronotum in 
front of the hind angles, by the irregular, superficial strigation of the 
pronotal disc, by the thicker, shorter antennae, and by the elytral 
apices of the male, which are more briefly subtruncate and less round- 
ed. The apex of the aedeagus is smaller and narrower than in hatchi. 
Named in honor of Dr. Frederick R. Whitesell, University of the 
South, Sewanee, Tennessee. 
Ptomaphagus (Adelops) laticornis Jeannel 
Jeannel 1949: 102; type: Scott Cave, Madison Co., Alabama (in Museum 
National d’Histoire Naturelle, Paris). 
