148 



ff. General color dull yellowish brown, with very numerous 

 paler spots ; each of the carina} of the hind femora with 

 about seven very small and distinct teeth. 



36. Ceuthophilus jsreyipes, Scudder. 



Ceuthophilus brevipes, Scudder, Bost. Jour. Nat. Hist., VIL, 1862, 434. 

 Smith, Orth. of Maine, 1868, 145. 

 Fernald, Orth. N. Eng., 1888, 19. 



Dull yellowish brown, a little darker on the dorsum of the thorax where 

 there is a narrow median line of clay yellow. Very profusely spotted 

 with dirty white spots, especially on the abdomen, and near the apex of 

 hind femora, where they nearly form an annulation. 



Front femora a little longer than the pronotum, with a single spine on 

 lower front carina. Hind femora short and stout; the inferior sulcus of 

 average width and depth; each carina armed with about seven very small 

 teeth. Hind tibia- straight, of the same length as the femora. 



Measurements: Male — Length of body, 14 mm.; of pronotum, 4.5 mm.; 

 of front femora, 5.5 mm.; of hind femora, 12 mm.; of hind tibire, 12 mm. 



A single male from Vigo county agrees in every respect, except slight 

 differences in measurements, with typical examples from Mr. Scudder's 

 collection. Not before recorded west of New England. 



bb. Hind femora distinctly shorter than the corresponding tibiae; 

 cave inhabiting species. 



37. Ceuthophilus stylus (Scudder.) 



Raphidophora slygius, Scudder, Proc. Bost. Soc. Nat. Hist., VIII., 1861,9. 

 Ceuthophilus stj/gius, Id., Bost. Jour. Nat. Hist., VII., 1862, 438. 

 Riley, Stand. Nat. Hist., II., 1884, 184. 

 Brunner, Monog. der Stenop. und Gryll., 1888, 309. 

 Pale, reddish-brown, the hind border of each segment with a dark 

 brown band, the pronotum with a similar band on the front margin, and 

 an indistinct, dark median band connecting the two. Face pale with a 

 black dash below each eye, and a shorter median one. Antennae brown- 

 ish yellow, paler towards the tip, of excessive length. Front femora, in 

 the specimens at hand, double the leugth of the pronotum, with three 

 spines on the lower front carina. Middle femora shorter than the anter- 

 ior with both of the lower carina} armed with three or four distinct spines. 

 Hind femora rather slender, the lower outer carina prominent ; the infer- 

 ior sulcus narrow and of average depth ; both margins armed with num- 



