CAVE CARABIDAE 
(COLEOPTERA) OF MAMMOTH CAVE, PART II. 
By Thomas C. Barr, Jr. 
Department of Zoology, University of Kentucky, Lexington 
This is a continuation of my account of the Cave Carabidae of 
Mammoth Cave, the first part of which was published in the pre- 
ceding issue of Psyche (Volume 73, pp. 284-287):* 
P. inexpectatus forms the type of an inexpectatus species group, 
generally distributed eastward and northward from Mammoth Cave. 
"1 he species are all rather small (less than 4 mm) and slender, with 
unusually elongate, slender aedeagi containing long, slender copula- 
tory pieces. The posterior margin of the last sternite in the males is 
broken by a distinct notch. The affinities of the inexpectatus group 
seem to lie with P. gracilis Valentine (Giles Co., Virginia), P. 
hadenoecus Barr (Pendleton Co., West Virginia), and undescribed 
species from Fayette Co., Pennsylvania, and Randolph Co., West 
Virginia. All of these eastern species are small, have an elongate 
aedeagus, reflexed at the tip, and have the last sternite of the males 
notched. The copulatory pieces are considerably shorter, however, 
than those of the inexpectatus group. In P. horni and related species 
in the inner Bluegrass of Kentucky there is a slight emargination in 
the last sternite of the males. Perhaps this indicates an affinity with 
the inexpectatus group, but the single copulatory sclerite and other 
morphological characters suggest that horni and its relatives are more 
closely allied with the audax group. 
P. puhescens has been taken sporadically at two sites in Mammoth 
Cave: (1) Crevice Pit, near the top of Mammoth Dome; and (2) 
on cave cricket guano near the top of Moonlight Dome in the Frozen 
Niagara part of the cave. Elsewhere in Mammoth Cave National 
Park it has been collected in one of two caves in the bottom of 
Cedar Sink, 4 miles southwest of the Historic Entrance to Mammoth 
Cave. P. pubescens occurs frequently along cave streams, but is not 
uncommon in certain caves in rather dry areas, where it occurs 
crawling about on dry silt in the manner of Neaphaenops. It does 
not appear to show as narrow a degree of habitat selection as mene- 
*As a result of a printing error, this part of Professor Barr’s article was 
omitted from his account of the Mammoth Cave Carabidae in the December, 
1966, issue of Psyche (pp. 284-287). Since this omission was not discovered 
until after the copies of the issue had been mailed, the rest of the paper is 
published here as a continuation of the previous article. [Editor]. 
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