MORSE: ORTHOPTERA OF NEW KNCLANI). 383 
of pallidipes from Ontario, finds it plentiful there. Rehn and 
Hobard have recently synonymized it with ('. Idiiiih'rola of the 
southern States. 
Slender-legged Cave-cricket. 
Ceuthophilus gracilipes (Ilaldoiiian). 
Phalangopsis gracilipes IIaldeman, Proc. Amer. Assoc. Adv. Sci., vol. 2, p- 
346 (1850). 
Ceuthophilus gracilipes Walden, Bull. Geol. Nat. Hist. Surv. Ct., no. 16, p. 
143(1911). 
A very large and variable species with extremely long antennae 
and hind legs. The hind thighs are armed beneath with an 
irregular series of from 8 to 18 long, stout, widely spaced spines, 
erect in male, shorter and appressed in female, sometimes tumid 
at base, sometimes bent backw^ard at the half. Hind tibiae 
exceeding the femora, straight, but sometimes arched basully in 
the male. Ninth abdominal dorsum prolonged backward its full 
width, truncate, the corners round. Subgenital pinto deeply 
but nearly rectangularly emarginate. 
General color pale yellow, more or less heavily marked above, 
especially on the hinder portion of the segments, with dark choc- 
olate brown. Legs pale, hind thighs often bearing externally a 
network of oblique brown markings (scalariform pattern). 
Measurements. 
Body Hind femora Hind tibia Antenna Ovipositor 
Male 23.5 23 24 75 
Female 16-23 22 24 62 13.5 mm. 
This large and striking Cave-cricket is recorded by Walden 
from Mt. Carmel and New Canaan, Ct., in dark, damp cellars, 
under the bark of fallen trees, and in similar places, from August 
6 to September 15. Half-grown young have been taken in a cave 
at New Ashford, Mass., December 22, by Dr. G. M. Allen. It is 
a southern species, extending as far as Alabama. It is recorded 
that over 200 were found in one hollow tree in North Carolina 
when it was felled. 
C. stygius Scudder is stated by Caudell to be a synonym of this 
species. A single male of this form, taken at Beverly, Mass., in 
August, is in the collection of the Boston Society of Natural 
History. 
