MORSE: ORTHOPTERA OF NEW EXGLAND. 289 
to chestnut or hair brown at tip; tapering, the segments nearly 
cylindrical, especially toward the tip, and from four to six times as 
long as wide. 
Pronotum nearly square, as wide as head, broadening slightly 
backward, the front margin straight, hind margin a little convex, 
hind angles rounded. Hind margin of mesonotum nearly straight, 
of metanotum strongly concave. No visible trace of tegmina or 
wings. 
Anal plate of male about twice as wide as long, quadrate; of 
female a little narrower and narrowed behind. Forceps of female 
and young nearly straight, gently arcuate at tip, the inner margin 
of the basal half crenulate; of male a little shorter, more arcuate, 
less finely pointed at tip, and asymmetrical, the right member 
being more arcuate (curving to 90° with base), and its inner basal 
process broader, the inner margin faintly denticulate at base. 
Blackish mahogany brown, reddish on forceps and edges of 
terga above and more generally beneath. Legs luteous. Dorsal 
surface smooth, waxen, minutely punctate. Ventral surface 
pubescent with sparse, erect, chestnut-brown hairs one-fourth to 
one-third as long as the segments. 
Measurements. 
Body and forceps Width Forceps Anteana 
Male 21-28 4.4-7 3-4.5 8-11 
Female 20-31 3.8-5.5 4-5.4 9-11.5 mm. 
This is our largest Earwig, a squirming, mahogany brown, wing- 
less insect about an inch long, whose unattractive coloring and 
sinuous crawling movements usually produce a feeling of repug- 
nance in the observer. It lives at or near high-water mark in 
various localities along the coast, but in the Old World has been 
reported from elevations of several thousand feet. Walden 
states that it is found from Maine to Connecticut. It has been 
reported to me from Gloucester, Marblehead, Lynn, Winthrop, 
Squantum, and Somerset, Mass.; Newport and Tiverton, R. I.; 
and at several points on the Connecticut coast, at various dates 
from May 16 to September 17. 
An interesting paper by C. B. Bennett on the habits of this 
species appeared in Psyche, vol. 11, p. 47-53, June 1904, from 
which the following account has been condensed. 
