470 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
less ( 9 ) infuscated at tip. Hind tibiae fuscous at base, followed 
by pale and fuscous annulations, the distal half deep red, the tip 
fuscous, and the spines tipped with black. 
Measurements. 
Total Body Tegmina Hind femora Antenna 
Male 26-30.5 20.5-22 20.5-25 12.5-13.5 10-13 
Female 2^-38 27.5-33 23 -28 12.5-17 11-13 mm. 
Of all our species of Oedipodinae this is the only one which 
shows a marked preference for a semi-sylvan habitat, a preference 
which is even more noticeable in the South than in New England. 
While it is frequently found in fields, nevertheless it shows a 
decided predilection for open woods, bush-covered pastures, and 
abandoned fields growing up to sprout-land. 
It has a strong, jerky, erratic flight, and circles, dodges, and 
drops down among the bushes on some bare spot in masterly 
fashion, asking no favors, thoroughly able to take care of itself, 
ever alert and ready for instant action. The females are less 
ready to rise and after one or two flights will often remain quietly 
in hiding. 
Its rattling crepitation is a characteristic brush-land sound in 
August and September, and resembles that of the Autumn 
Yellow-wing but is of less volume and less prolonged in delivery. 
It is found throughout the Transition zone of New England from 
early July till late October, and is more generally distributed than 
either of its congeners. 
Ledge Locust. 
Spharagemon saxatile Morse. 
Plate 10, fig. 1; Plate 21, figs. 14, 15; Plate 25. 
Spharagemon saxatile Morse, Proc. Boston Soc. Nat. Hist., vol. 26, p. 229 
(1894).— Walden, Bull. Geol. Nat. Hist. Surv. Ct., no. 16, p. 100 (1911). 
This may be the Locusta aequalis of Harris, Treatise, 3d ed., p. 178 (1862). 
Body stout, scarcely compressed in the male. Head of medium 
size; eyes medium, sub-prominent in male. Antennae long, of 
male exceeding hind femora, of female shorter, fuscous distally, 
annulate with pale at base. Pronotum stout, constricted on 
prozone, broad on metazone, hind margin rectangulate, front 
margin slightly obtuse-angled. Median carina rather low, on 
