MORSE: ORTHOPTERA OF NEW ENGLAND. 335 
Conocephalus Rehn and Hebard, Trans. Amer. Ent. Soc, vol. 41, p. 155- 
224, pis. (1915). 
Diestrammena. See Ceuthophilus. 
NeoconocepJmlus Rehn and Hebard, Trans. Amer. Ent. Soc, vol. 40, p. 
365^13, pis. (1914). 
Orchelimum Rehn and Hebard, Trans. Amer. Ent. Soc, vol. 41, p. 11-83, 
pis. (1915). 
Pterophylla Caudell, Journ. N. Y. Ent. Soc, vol. 14, p. 32-48, pi. (1906). 
Scudderia Rehn and Hebard, Trans. Amer. Ent. Soc, vol. 40, p. 315-344, 
pis. (1914). 
Key to Subfamilies and Genera of Tettigoniidae. 
A. Tegmina and wings, or their rudiments, present; stridulatory and auditory 
organs present. 
B. Prosternum without a pair of sharp, erect spines. 
Subfamily Phaneropterinae. 
C Tegmina and wings fully developed, much exceeding body; wings 
passing tegmina. 
D. Vertex of head very broad anteriorly, smoothly rounded. 
Round-headed Katydids, Amblycorypha spp., p. 336. 
DD. Vertex of head narrowed anteriorly to a compressed tubercle, 
grooved above and not as wide as first antennal joint. 
Bush-katydids, Scudderia spp., p. 339. 
CC. Tegmina rudimentary, little longer than pronotum; wings abortive. 
European Bush-katydid, Leptophyes punctatissima, p. 348. 
BB. Prosternum armed beneath with a pair of sharp, erect spines. 
E. Pronotum of normal size. Color green (sometimes very pale brown). 
Tegmina and wings usually fully developed, — in two species reduced. 
F. Tegmina very broad, with leaf -like veins, concave, enclosing the body 
and wings Subfamily Pseudophyllinae. 
True Katydid, Pterophylla camellifolia, p. 350. 
FF. Tegmina narrow, expanding but little in the middle. 
Subfamily Conocephalinae. 
G. Head conical; vertex broad, usually much prolonged in advance 
of eyes. Large insects with greatly elongated tegmina. 
Cone-heads, Neoconocephalus spp., p. 353. 
GG. Vertex narrow, projecting but little, strongly hollowed out 
laterally for reception of basal antennal joints. 
H. Robust species; ovipositor stout, upcurved. 
Large Meadow- or Green-grasshoppers, Orchelimum spp., p. 359. 
HH. Slender species; ovipositor slender, straight or but little up- 
curved. 
Smaller Meadow-grasshoppers, Conocephalus spp., p. 363. 
EE. Pronotum very large, extending backward behind the lower part of 
the lateral lobes a distance at least equal to that in front. Tegmina 
rudimentary; wings abortive. Color brown. 
Shield-backed Grasshoppers, Subfamily Decticinae, p. 370. 
