506 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Northern Meadow Locust. 
Melanoplus borealis (Fieber). 
Plate 22, figs. 13, 14; Plate 23, figs. 5, 6. 
Caloptenus borealis Fieber, Lotos, vol. 3, p. 120 (1853). 
Melanoplus extremus Scudder, Proc. U. S. Nat. Mus., vol. 20, p. 287, pi. 18, 
fig. 10 (1897).— Morse, Psyche, vol. 8, p. 292, pi. 7, figs. 41, 41a (1898). 
Of small to medium size and appearing of short form owing to 
the brevity of tegmina and wings (in the more common examples) . 
Head and eyes moderately prominent. Prosternal spine of 
female short, conical, bluntly rounded at tip; of male long, 
cylindrical, taper-pointed. Pronotum full, horizontal above. 
Tegmina and wings very variable, equalling the abdomen ( cf , 9 ), 
covering only two-thirds ( 9 ), or much surpassing it (cf ). Hind 
femora slender. Subgenital plate of male in side view with 
dorsal margin sinuous, the hind margin a little flaring, entire, 
convex, sometimes truncate. Cerci short and broad, not reach- 
ing end of supra-anal plate, less than twice as long as broad, 
roughly trapezoidal, both apical angles rounded, the dorsal more 
produced, the dorsal margin a little concave. Furcula two-thirds 
as long as supra-anal plate, two or three times as long as last dorsal 
segment, the fingers straight, nearly parallel, tapering from 
broad, flattened bases and united for one-third their length. 
Ovipositor of moderate length, the dorsal valves in side view 
lacking an angulation at the base of the scoop. Cerci of female 
acutely pointed, attenuate, nearly twice as long as broad, more 
or less variable in length and form but usually approaching 
those of M. femur-rubrum rather than M. m. atlanis. 
General coloration brownish olivaceous above, paler beneath, 
with black markings, and often varied with red on hind femora 
and tibiae. Lateral stripe nearly or quite solid on head and 
prozone, absent from" metazone, much broken on sides of thorax 
and abdomen, but usually conspicuous in the male, covering 
sides and end of subgenital plate. Tegmina sometimes with a 
median row of fine, faint dusky spots. Hind femora not banded. 
Hind tibiae cherry red, yellowish, or even glaucous, palest at 
base. 
Measurements. 
Total Body Tegmina Teg. cf. Hind fem. Hind femora Antenna 
Male 15-22 15 -19 9.5-16 -3-+3 9.4-11.2 7.5-9 
Female . . 16-24 15.5-24 10 -18 -4-+3 10 -12.6 6 -8 mm. 
