ENTOMOLOGICAL NEWS. 49! 
_ thread Tliapun, then the insect went to the tip end, crawled 
¢ tube he had just formed, and began to bind the edges 
tther on the inside, at the petiole end, then returning to 
le apical end, then worked at the middle, rested, and finally 
yun in the open place near the mouth of the pocket. The sides 
‘Were noticeably drawn together ‘as he worked near the middle 
on the inside. Also, when the insect crawled over the first 
ork done, while still on the outside, the edges were squeezed 
‘Mearer together by the legs, and were held there, the threads 
becoming more oblique. The whole process was finished 2 
minutes before ten. After completing the pockets the insects 
lie very quietly within them for hours. The work done by 
these captive Camptonotus indicates that they have no choice 
as to whether the mouth of the pouch shall be at the apex or 
base of the leaf. Their adaptability is shown by the use of 
a leaf weakened by injury, obviating the necessity of making a 
cut, as well as in the recognition of the pod of Staphylea as a 
eee semetitute for a rolled leaf. 
_ Although three specimens of Camptonotus were confined 
for two days with uninjured pods and no leaves, not a pod was 
disturbed. Hence it is not proven that the locustids enter 
“Whe through openings of their own making. Nevertheless, 
is Very probable that they do so; certainly they have mand- 
Eso te tan: The pods may be used for only a 
short period. At any rate, on August 23, not a Camptonotus 
- could be found where a week before they were numerous. How- 
ever, on this date two specimens of Orocharis saltator Uhler, 
were discovered in torn pods. Mated pairs and nymphs of 
Banasa also were frequently found. 
EXPLANATION OF PLATE XXV. 
Top Figure: Leaflet of Staphylea trifoliata, rolled by Camptonotus 
Middle and Bottom Figures: Pods of Staphylea, with walls of cell cut 
away, showing Camptonotus, ensconced within. On upper left hand part 
of middle figure, note well woven sheet closing the entrance to cell. 
Ma Forpyce Gaixwett, Jr, collected last summer in the San 
Jacinto Mountains of southern California. Messrs, Grinnell and Brad- 
ley made a collecting trip to the summit of Mount Wilson in September. 
