INSECTS OF THE CAVE. 
13 
turbed, clinging to the ceiling, upon which they walked easily; 
tliey would leap away from approaching footsteps, but stop at a 
cessation of the noise, turning about and swaying their long an- 
tennae in a most ludicrous manner, in the direction whence the 
disturbance had proceeded ; the least noise would increase their 
tremulousness, while they were unconcerned at distant motions, 
unaccompanied by sound, even though producing a sensible cur- 
rent of air ; neither did the light of the lamp appear to disturb 
them ; their eyes, and those of the succeeding species {R. stygia) 
are perfectly formed throughout, and they could apparently see 
with ease, for they jump away from the slowly approaching hand, 
so as to necessitate rapidity of motion in seizing them.” 
Mr. Henry Edwards has discovered a wingless grasshopper in a 
limestone cave at Colling wood. Massacre Ba}^, Middle Island, New 
Fig. 126. 
Zealand. Says Mr. Scudder, who has described the species in the 
“Proceedings of the Boston Society of Natural History” (Vol. 
xii, 1869, p. 408) under the name Hadenoecus Edivardsii, “the 
cave is close to the sea shore, and near a very large coal deposit, 
which occasionally crops out in the interior. The Hadenoeci were 
rather numerous, but very difficult to catch, disappearing in the 
crevices of the rocks on the approach of lights. They appeared 
to be most abundant near the streams of water which percolated 
through the rocks.” The wingless grasshopper of the European 
caves is the Hadenoecus palpatus Scudder, first described by Sulzer 
under the name Locusta palpata. 
The Thysanurous Neuroptera are represented by a species of 
Machilis, allied to our common Macliilis variabilis Say, common in 
Kentucky and the middle and southern states. So far as Tell- 
