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Psyche 
[December 
elytral strigae, and the summits of their tibiae are armed with a 
comb of many short and equal spines, as well as by two longer spurs 
(see Peck, 1973, 1977 and their cited references). 
Adelopsis is generally difficult to separate from its nearest 
neighbor, the genus Ptomaphagus, using only external characters. 
Tropical species of Adelopsis (but not those of the U.S.) usually 
differ by being smaller (length 2.6 mm or under) and in having the 
antennal club more loosely composed of gradually larger segments, 
of which the last two are often conspicuously lighter in color. The 
genera are more reliably separated by the chitinized internal repro- 
ductive structures of the aedeagus and spermatheca. In Adelopsis 
the spermatheca (as far as is known) is a more simple curved tube, 
and the aedeagus has a tip which is more elaborately sculptured, or 
Map 1. Distribution of known species of Adelopsis in the southeastern United 
States. Heavy irregular line indicates maximum extent of Pleistocene glaciations. 
A, A. mitche/lensis. B, A. steevesi. C, A. alleghenvensis. D, A. suteri. E, A. rich- 
landensis. F, A. appalachiana. G, A. jonesi. H, A. bedfordensis. I, A. cumberlanda. 
J, A. scottsboroensis. K, A. nashvillensis. L, A. fumosa. M, A. alta. N, A. joanna. 
O, A. pisgaherisis. P, A. orichalcum. 
