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MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 
ter’s Cave, 300 yards in; Diamond Cave; Grand Avenue Cave; One Hundred Dome Cave; Proc¬ 
tor’s Cave; Mammoth Cave. 
A. striatus Motsch, ibid., seems to be a small variety of this species. The elytra are not 
entirely glabrous in this species, but are sparsely clothed with short erect hairs, visible only with 
a powerful lens; it is easily distinguished from the others by the side margin of the elytra behind 
the humeri being distinctly crenate for a short distance. 
A. ventricosus Motsch. still remains unaccounted for in our collections. It was found in Mam¬ 
moth Cave, and I see nothing in the description which forbids its reference also to this species, 
which, with a large series of specimens, is seen to vary slightly in form. 
3. A. pusio Horn, Trans. Am. Eat. Soc., i, 125. 
Carter Cave (X Cave). First described from Erhart’s Cave, Montgomery county, Virginia. 
4. A. eremita Horn, Trans. Am. Ent. Soc., iii, 328. 
Wyandotte Cave (its original locality), one specimen. 
5. A. tenuis Horn, ibid., iii, 327. 
Bradford caves, two specimens; first described from Wyandotte Cave, Indiana. 
6. A. pubescens Horn, ibid., i, 126. ' 
Walnut Hill Spring Cave, near Glasgow Junction, 100 yards from daylight, 
from Cave City Cave. 
Adelops Tellkampf. 
First described 
A. hirtus Teltk., Wiegrn. ArcMv., 1844, i, 318, tat>. 8, figs. 1 to 6. 
Walnut Hill Spring Cave, 50 feet in, collected by daylight; Walnut Hill Spring Cave, 100 
yards from daylight; Little Lithographic Cave; Poynter’s Cave, 300 yards in; White’s Cave; 
One Hundred Dome Cave; Proctor’s Cave; Mammoth Cave, a widely-distributed species; no per¬ 
ceptible difference exists between the specimens from the different localities. 
II—SPECIES WITH DISTINCT EYES. 
Batkisus Leach. (PI. XX, Fig. 10.) 
B. spretus Lee., Bost. Jonrn. Nat. Hist., vi, 100. 
Two females found in the end of Dixon’s Cave, near Mammoth Cave. A common species 
from Vermont to Georgia. 
Quedixts Leach. (PI. XX, Fig. 11.) 
Q. fulgidus Er. Col., March, i, 486; Staphyl., 525; Staphylinusfulg. Pabr. 
Weyer’s Cave; end of Dixon’s Cave, near Mammoth Cave. A common species in the Middle 
and Western States. Q. spelwus Horn, Trans. Am. Ent. Soc., iii, 332, differs from this species by 
the more widely-flattened sides of the prothorax and the much more finely and densely punctured 
elytra. 
Cettthophag-tjs Grav. 
A. brmneus Say, Journ. Ac. Nat. Sci., iii, 158, ed. Leo. 
Walnut Hill Spring Cave, 50 feet in, collected by daylight. Found throughout the Middle 
and Western States. 
Oxypoda Mann. 
An undescribed species, known to me from other localities, was found in Bradford’s Cave. 
