350 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
in autumn, when they are taken by sweeping, and sometimes are 
captured at the sugar-baits for moths. 
The Katydid; Broad-winged Katydid; Leaf-winged 
Katydid. 
Pterophylla camellifolia (Fabricius). 
Figs. 51, 52. 
Locusta camellifolia Fabricius, Sysfc. Ent., p. 283 (1775). 
Platyphyllum concavum Harhis, Treatise, 3ded., p. 158, fig. 74 (1862). 
Cyrtophyllus concavus Smith, Rept. Ct. Bd. Agric. for 1872, p. 356 (1873). — 
ScuDDER, Boston Journ. Nat. Hist., vol. 7, p. 444 (1862). — Fernald, Orth. 
N. E., p. 104 (1888). 
Cyrtophyllus perspicillatus Walden, Bull. Geol. Nat. Hist. Surv. Ct., no. 16, 
p. 131 (1911). 
Body large, robust. Tegmina very broad, concave, completely 
enclosing the wings and abdomen, with a very prominent middle 
Fig. 51. — The Katydid, Pterophylla camellifolia. Side view, (.\fter Walden.) 
vein, coarsely and rather regularly reticulated, especially the 
anterior field in the male. The musical organs of the male are 
conspicuous. They consist of a pair of taborets, "formed by a 
thin and transparent membrane stretched in a strong half-oval 
frame in the triangular overlapping portion of each wing-cover" 
(Harris), much depressed below the marginal framework. The 
head is broad and short, with small globose eyes and pointed 
vertex shallowly excavate above and emarginate on the face 
between the bases of the antennae. The jaws are exceptionally 
large and strong, with a formidable row of prominent teeth. 
