MORSE: ORTHOPTERA OF NEW ENGLAND. 359 
THE LARGER MEADOW-GRASSHOPPERS— ORCHELIMUM. 
This genus is closely related to Conocephalus (Xiphidium) , from 
which group our three species are readily distinguished by their 
larger size, more robust body, and stouter ovipositor. The 
stridulating area of the male tegmina is larger proportionally and 
is transparent as in that genus. The scientific name, meaning 
literally, "I dance in the meadow," is especially fitting, in relation 
to their habitat, their active and energetic locomotion, and their 
musical performances; one species, indeed, is a noticeable and 
persistent songster of the sultry days and nights of late July and 
August, and is often referred to in the literature of insect stridu- 
lation. 
Key to Species of Orchelimum. 
A. Robust species. Cerci of male stout, the distal part not exceeding in 
length the internal tooth, and with dorsal tubercle. 
B. Humeral sinus of pronotum distinct, deep. Cerci of male with internal 
tooth shorter than distal part of shaft; dorsal tubercle on shaft about one- 
fourth its length from tip. Ovipositor not strongly widened in middle, 
distinctly upcurved, its dorsal margin concave. 
Common Meadow-grasshopper, 0. vulgare, p. 359. 
BB. Humeral sinus of pronotum barely indicated. Cerci of male with 
tooth as long as distal part of shaft; dorsal tubercle on shaft about one- 
third its length from tip. Ovipositor much widened in middle, the 
dorsal margin straight except at base, the ventral margin strongly 
convex Bruner's Meadow-grasshopper, 0. gladiator, p. 361. 
AA. Slender. Tegmina and wings narrow, elongate. Face usually with a 
median dusky patch. Pronotum in side view as deep as long. Cerci 
of male with distal part of shaft longer than internal tooth, not tubercu- 
late above. Ovipositor moderately stout, gently upcurved, half as long 
as hind femora. A salt-marsh species. 
Dusky-faced Meadow-grasshopper, 0. concinnum, p. 362. 
Common Meadow-grasshopper. 
Orchelimiim vulgare Harris. 
Figs. 54, 55; Plate 15, fig. 27-30. 
Orchelimum vulgare Harris, Ins. Inj. to Veg., p. 130 (1841) ; Treatise, 3d ed., 
p. 162 (1862). — ScTJDDER, Journ. Boston Soc. Nat. Hist., vol. 7, p. 452 
(1862) ; in Hitchcock, Geol. N. H., vol. 1, p. 368 (1874) ; Appalachia, vol. 
8, p. 317, (p. 19 sep.) (1898) ; 23d Ann, Rept. Ent. Soc. Ontario, p. 73 (1893). 
—Smith, Proc. Portland Soc. Nat. Hist., vol. 1, p. 145 (1868); Rept. Ct. 
Bd. Agric. for 1872, pp. 358, 380 (1873).— Fernald, Orth. N. E., p. 24 
