70 MEMOIRS OL? THB NATIONAL ACADEMY OP SCIENCES. 



(B) Carter County caves. — Two females from Gray Tom's Cave (August 21, Sanborn), four 

 males aud seven females from Zwingle's Cave (Packard), four males and four females from Bat 

 Cave (Packard), had eyes like those of Mammoth Cave. 



Three males and three females from Van Meter's Cave, Grayson Springs (October 25, San- 

 born), had eyes as usual. 



Two females from Burchell's Cave, Carter county (August 18, Sanborn), had eyes of the usual 

 shape. 



(C) Nicka/jaclc Cave. — Three small specimens were found by Professor Cope in this cave, which 

 only differed from Mammoth Cave individuals in having rather shorter, thicker maxillary palpi ; 

 but this is not even a varietal difference, as the antennae and legs have the same proportions. 

 (Amer. Naturalist, xv, 882.) 



Bemarlcs. — Prom the foregoing facts it will be seen that this species does not vary perceptibly, 

 either in its eyes or appendages, whether occurring in large or small caves, or living in total 

 darkness or in partial daylight. 



Ceuthophiltts stygius Scudder. 



Baphidophora stygia Scudd., Proc. Bost. Soc. Nat. Hist., viii, 9, Jan. 2, 1861. 

 Ceuthophilus stygius Scudd., Bost. Journ. Nat. Hist., vii, 438, 1862. 



Eight males and six females from Wyandotte and Little Wyandotte caves. The males of larger 

 size than usual; front of head rather high and narrow, clypeus rather long and narrow, nearTy 

 twice as long as in C. latens. Maxillary palpi rather longer than in C. latens and sloanii. Antennae 

 a little more than twice as long as the body; basal joint large and swollen, subcorneal, much larger 

 at the base than in C. sloanii, and nearly twice as large as in C. latens; second joint two-thirds as 

 long as the third, where in C. sloanii it is only half as long asrthe third; the remainder dark, 

 anuulated at long intervals with white. Hind legs of the same length as the antennas; hind 

 femora long, much more so than in C. maculatus, sloanii, latens, or lapidicola, with the pale 

 oblique spots and bars very distinct; abroad pale ring on the distal fourth; tips of tibiae and 

 entire tarsi whitish; spines whitish. Pore and middle legs white, except ends of femora and 

 tibiae; the latter pale at tip. Anal stylets (cercopoda) either wholly dusky or whitish on the basal 

 half in male and female. Ovipositor rather long and slender, about as long as in C. maculaius, 

 and much longer than in C. latens, with five stout teeth, the end of the denticulated blades broader, 

 with stouter teeth than in C. maculatus. Coloration rather dark, with broad irregular dark bands 

 across the front between the eyes; a broad dark band on the front and posterior edge of the 

 pronotum, and one on each succeeding body segment. The band on the front edge of the prono- 

 tum sends a median spatulate prolongation back nearly touching the posterior dark band. No 

 pale dorsal median band as in C. sloanii, by which character it may at once be separated from the 

 latter species, its companion cave-dweller, as well as from C. maculatus. 



Male. Length of body, 31 mm ; of antennas, -72 mm ; of hind femora, 25 mm ; of ovipositor, 13 mm ; 

 male of the same proportions. 



One male and six females from Wyandotte Cave are larger than from any other cave and 

 decidedly paler, though the specimens vary considerably among themselves. Twelve males and 

 females from Little Wyandotte Cave are like those from White's Cave, being smaller and darker 

 than those from the Great Wyandotte Cave. 



Five males and two females from a cave in Washington county, Indiana (Dr. John Sloan), 

 are large, and colored much as in those from Wyandotte Cave. Three small males of the usual 

 color from Georgetown, Floyd county, Indiana (Dr. Sloan). 



Ten males and five females from White's Cave vary in intensity of coloration; in some the 

 dark bands are more distinct than in others, which are more mottled with dark; all are immature. 

 They were found from 5 feet from the mouth to the end of the cave, in company with H. subter- 

 raneus, on the sides and roof as well as on the columns of the caves. 



One female from Diamond Cave, living in total darkness, was darker than usual. 



One large male and three females from John and Fred Field Cave, near Dismal Creek, Bee 

 Spring, Ky. (July 24, Sanborn), are darker than Wyandotte specimens; this and other facts show- 

 ing that those living in the smaller caves are darker, less bleached, than those in the larger caves. 



