18 
BULLETIN 256,, U. S. DEPARTMENT OF AGRICULTURE. 
Color about as in preceding instar; body more strongly arched. 
Wing-pads more distinctly veined, their tips directed backward over 
the abdomen, reaching to middle of second segment. 
Fig. 15. — The angular- winged katydid: Fifth-instar nymph. Two and one-half times natural size. 
(Original.) 
Sixth instar (fig. 16).- — Measurements: Length of body, 17 mm.; 
length of head, 5.7 mm.; length of pronotum, 5 mm.; posterior 
femur, 16.5 mm.; posterior tibia, 17.7 mm.; antenna, 37.4 mm. 
Body strongly arched above, sloping about equally abruptly in both 
Fig. 16.— The angular-winged katydid: Sixth-instar nymph. Almost three times natural . ize. (Original.) 
directions from second abdominal segment; wings projecting upward 
and backward at an angle from abdomen; tips considerably elevated 
above latter. 
Nymphal instars each described from a single specimen shortly after 
molting. 
