= 
{SS 
ay x4 
1888] 185 (Packard. 
Washington, D. C. (Prof. C. V. Riley); Pilatka, Fla., and Milliken’s Bend, 
La. CH. Burgess); ‘‘ astern United States’? (Wood); Found under bark 
in the mountain regions of Tennessee and North Carolina (Cope) ; St. 
Louis (Theo. Pergande). 
Although this species is evidently the parent form of the cave-inhabit 
ing Pseudotremia cavernarum, it has not yet been observed near the In- 
diana and Kentucky caves, though undoubtedly yet to be found in their 
vicinity, as it isa wide-spread species. It probably ranges through Central 
into South America, as Dr. Wood remarks; ‘‘I have seen a single speci- 
men, a female, labeled as coming from New Grenada, which apparently 
belongs to this species.’? This specimen I have seen in the Museum of 
the Philadelphia Academy of Natural Sciences, but did not compare it 
closely with our species ; itis much larger than individuals from the United 
States, 
PsruDOTREMIA Cope. 
Pseudotremia Cope, Proc. Amer. Phil. Soc., xi, No. 82,179, 1869. Trans. 
Amer. Ent. Soc., iii, 67, May, 1870. 
Spiroatrephon Cope, Amer. Naturalist, vi, 414, July, 1872. 
Pscudotremia Harger, Amer. Journ. Se. & Arts, iv, August, 1872. 
Ryder, Proc. U. 8. Nat. Mus., iii, 524, Feb. 16, 1881. 
Body consisting of thirty segments; rather long and slender, with as 
many as fifty pairs of legs. Head with the muscular area (gena) behind 
the eye very full and swollen, globose, swelling out far beyond the side of 
the succeeding scutum ; front a little longer than wide. Eyes present, 
black, the outline of the eye-patch narrow triangular, composed of about 
twelve to fifteen facets, arranged in four or five transverse oblique series. 
Antenne longer and slenderer than in any of the other genera of the fam- 
ily ; joint.3 is‘twice as long but not as thick as joint 2, but equals 5 in 
length, the latter, however, being very slender and clavate ; the terminal 
seventh joint is unusually long, pear-shaped and elongated towards the tip. 
The body constricts in a neck-like fashion behind the head ; segments 
(scuta) 5-20 especially have a lateral shoulder or raised portion character- 
istic of the genus Lysiopetalum ; this swollen portion has on each side about 
six longitudinal ridges, with deep valleys between; above, especially 
on the posterior half of the body, the dorsal portion of the laterally swollen 
scuta is coarsely tuberculated, instead of ridged, and the rounded tubercles 
are rather flat and unequal in size. ‘Chere are no sete or lateral setiferous 
tubercles. The end of the body is as usual in the family, the last segment 
with three pairs of small sets arranged one above the other. 
Above the middle of the side of the posterior scuta, especially the last 
six, isa tubercle like those in Scoterpes and Zygonopus, but much smaller, 
from which a minute hair arises, and above on the upper part of the 
shoulder there are two rudimentary, very small tubercles. 
The legs are long and slender, about one-third longer than the diameter 
of the body. In the male the eighth pair of legs are much less modified 
PROC. AMER. PHILOS. 800, XxI. 114. xX. PRINTED SEPTEMBER 15, 1883. 
