—— 
Serre 
1883. ] 1 89 (Packard. 
Prof. Cope’s types were first’ found by him in Erhart’s cave, Mont- 
gomery county, and Spencer Run and Big Stony Creek caves, in Giles 
county, Pennsylvania ; also, in Lost Creek cave, on the Holston river, in 
tranger county; and in other limestone caves of the valley of the Tennes- 
see. Prof. Cope afterwards (Amer. Nat. vi, 14) discovered this species 
in Wyandotte cave, remarking, ‘‘The species is quite distinct from that 
of the Mammoth cave, and is the one I described some years ago from 
saves in Virginia and Tennessee,’’ 
CRYPTOTRICHUS,* nov. gen. 
Pseudotremia Cope (in part), Proc. Amer. Phil. Soc., xi, No. 82, 180, 
1869. 
The head seen from in front is wider than long, as usual in the family, 
but the gene (or sides above the base of the jaws) are not so much swol- 
len as usual, being muchas in Zygonopus; the front is broad and not 
very long, and is distinctly marked by a ridge from the vertex. The eyes 
are large, well-developed, prominent, and equilaterally triangular. The 
antenne are large and slender, much more so than in Zrichopetahum or 
Scoterpes, but not so long and slender as in Pseudotremia. The joints 
have somewhat the same proportionate length as in the latter genus, but 
while the second joint in Pseudotremia is about half as long as the third ; 
in Cryptotrichus it is much longer, being about two-thirds as long as joint 3; 
joints 2 and 4 are of the same length, while in Pseudotremia joint 4 is con- 
siderably longer than joint 2; joint 5 is a little shorter than joint 3; joint 
6 is very short and thick compared with that of Pseudotremia, being about, 
one-third longer than thick, while in Pseudotremia the same joint is over 
twice as long as thick and regularly clavate ; the terminal (seventh) joint 
is oval, moderately short and thick, about twice as long as thick ; regu- 
larly oval, with two or three sensory flattened hairs of the usual form. 
The body consists of thirty segments, including the lateral anal plates ; 
it is thick and rather short, having the general proportions of Trichopeta- 
lum, The sete being of microscopic size, the segments (scuta) appear to 
the naked eye to be naked and smooth ; each scutum (tergite) is divided 
into two portions, an anterior plain and a posterior spotted portion, but 
there are no ridges, and. but a single slightly prominent tubercle project- 
ing backwards and situated a little below the middle of the side of the 
tergite ; each of these tubercles, at least on the posterior half of the body, 
directly sends off a fine seta which is directed backwards. From each of 
the pale, equidistant spots, extending in a nearly straight line around the 
posterior edge of each scutum arises a minute hair; the same spots in 
front give rise to minute conical tubercles, 
The legs are long and slender; as long as the body is thick. 
No males have been obtained, so that the secondary sexual characters 
cannot be here given. 
* Kpbxrw, I conceal; Opts, THOS, hair; referring to the minute sete, difMi- 
cult to detect, 
