MORSE: ORTHOPTERA OF NEW ENGLAND.- 341 
D. Tegniina relatively broad, less tlian four tiinos as long as broad, the 
apical half wider than the biusal half. Hind legs relatively short. 
Apex of median process of anal segment in side view dull, the sub- 
apical ventral vertical flanges continued to the apices of the lateral 
lobes Pistillate Bush-katydid, S. pistillala, p. 344. 
DD. Tegniina relatively narrow, four to five times as long as broad, the 
apical half not wider than the basal. Apex of median process of 
anal segment in side view sharp, acuminate, the sul)ai)ical ventral 
vertical flanges not continued to the apices of the lateral lobes. 
E. Larger; tegmina and hind legs elongate (teg. 33 to 37, h. fern. 
25 to 29 mm.). 
Curve-tailed Bush-katydid, S. curvicauda curvicauda, p. 345. 
EE. Smaller; tegmina and hind legs relatively short (teg. 25 to 29, 
h. fem. 21 to 23 mm.). 
Northern Curve-tailed Bush-katydid, S. c. borealis, p. 346. 
Females.i 
(Plate 13, fig. 4-9.) 
A. Ovipositor evenly curved throughout, long, more than half as long again 
as the pronotum Northern Bush-katydid, S. septentrionalis, p. 342. 
AA. Ovipositor short, bent upward more or less abruptly near base. 
B. Tegmina relatively broad, less than four times as long as wide, their 
apical half noticeably wider as a whole than the basal half; disk of pro- 
notum short and broad, distinctly broadened backward. 
Pistillate Bush-katydid, S. jristillata, p. 344. 
BB. Tegmina relatively narrow, four to five times as long as wide. 
C. Smaller forms (hind fem. 22, teg. 27 mm.). Disk of pronotum with 
sides nearly' parallel. 
D. Ovipositor relatively narrow, three and a half times as long as wide. 
Fork-tailed Bush-katydid, S. furcala, p. 347. 
DD. Ovipositor broader, only two and a half times as long as wide. 
Northern Curve-tailed Katydid, S. curvicauda borealis, p. 346. 
CC. Larger forms (hind fem. 26 to 30, teg. 29 to 36 mm.). 
E. Tegmina glossy. Disk of pronotum distinctly broadened poste- 
riorly; anteriorly somewhat convex, the lateral carinae less devel- 
oped; hind margin of lateral lobes protuberant backward. Ovi- 
positor bent abruptly upward near base, widest at Ijase. 
Texan Katydid, .S. texensis, p. 343. 
EE. Tegmina dull. Disk of pronotum broader and flatter anteriorly; 
hind margin of lateral lobes smoothly rounded. Ovipositor less 
bent, wadest on apical half. 
Curve-tailed Bush-katydid, S. curvicauda curvicauda, p. 345. 
^ The females of this genus are extremely difficult for the novice to separate. 
Only careful study of considerable series will render the typical characters 
appreciable. 
10 
