MORSE: ORTIIOPTERA OF NEW ENGLAND. 451 
oblique and closed, the front lolje often ovcrlHi)pinK the 
rear. Hind luargin acutc-ann't'd, its sides concave. Hind 
tibiae red, sometimes paler at ba.se. 
Scudder's Waste-land Locust, 
iipharagemon collarc sciiddcri, p. 467. 
KK. Carina rather low, usually sinuate on prozone in side view; 
the cleft nearly or quite vertical, ojK'n. Hind margin 
about ri^lit-anKled, its sides straight. Hind tibiae dis- 
tinctly pak'-rinKcd next base. 
Ledp;e Locust, S phnragemon saxatile, p. 470, 
EEE. Carina of pronotum with two distinct notches, the anterior often 
less marked than the posterior. 
L. Transverse dusky band of wings broad throughout, at least as 
broad as the width of a tegmen, continuous. Anterior notch of 
pronotum often shallow. Tegmen narrow, many of the cellules 
in the hinder part of distal half two to four times as long as wide. 
Pronotum much constricted. Hind tibiae annulate with fuscous 
and yellowi.sh white Sand Locust, Psinidia fcncstralis, p. 474. 
LL. Transverse dusky wing-band narrow, usually discontinuous just 
behind the anterior submarginal widening. Carina of pronotum 
very low, the notches almost equally distinct. 
^L Hind tibiae entirely pale. Radial veins of wings not enlarged. 
General color pale brown or bufT, and white. Sides of prono- 
tum usually distinctly angulate at meeting of lower and hind 
margins. A seashore, sand-dwelling species. 
Seaside Locust, Trimerotropis marilima, p. 476. 
M^L Hind tibiae dusky at tip and usually also at two-fifths of 
the distance from base to tip, elsewhere yellowish white. 
Radial area of wing expanded posteriorly and two or three 
radial veins distinctly enlarged. General color dark gray or 
black. A boreal, chiefly ledge-dwelling species. 
Broad-winged Locust, Circotettix verruculalus, p. 478. 
Autumn Yellow-wixged Locust. 
Arphia xanthoptera (Burmeister). 
Plate 10, fig. 2; Plate 21, figs. 1, 2. 
Oedipoda xanthoptera Burmeister, Handb. d. Ent., vol. 2, p. 643 (1838). — 
ScuDDER, Boston Journ. Nat. Hist., vol. 7, p. 469 (1862). — Smith, 
Rept. Ct. Bd. Agric. for 1872, p. 372 (1873). 
Locusta sulphurea Harri.s, Treatise, 3d ed., p. 177, in part (1862). 
Arphia xanthoptera Ferxald, Orth. N. E., p. 39 (1888). — Morse, Psyche, 
vol. 7, p. 50 (1897).— Waldex, Bull. Geol. Nat. Hist. Surv. Ct., no. 16, 
p. 90 (1911). 
Body rather strongly compressed. Antennae very slender, 
about equal to the pronotum in the female ; in the male longer, 
