GJKAUI. T— THE EEDEL G 
63 
1905] 
isolated in a small glass vial, was fed at once. It was very active after hatching, 
and at first made attempts to escape, though in a few minutes readily took food. 
Just as soon as the least bit of blood entered the body it could be traced to its 
destination, and as more was sucked in, the body became stained a very beauti- 
ful, deep, purplish red. The abdomen, at first flat and round in outline, soon 
became distended, lengthened, and cylindric, and the nymph then measured 2.00 
mm.“ 
On the afternoon of the ne.\t day (25th), the nymph was again fed, and the 
abdomen was much darker, not stained as previously, .\gain on the morning of 
July ist, it was fed. It had not changed. On the morning of July 6th, it fed 
long and eagerly, until the abdomen became so large and distended that it was 
all out of proportion to the rest of the body; it was then stained purplish red, as 
after the first meal. The insect after this gluttonous meal did not lose its usual 
activity. The first molt then occurred about 7 P. M., 7th July. It had thus fed 
four (4) times during the first instar. 
In the second instar, it was fed for the first time at g P. M., gth July but 
took but very little food, showing an inclination to wander and hide, and 
w'as evidently much disturbed by the strong lamp-light in the laboratory. Hut 
at 4 P. M, 13th July, it went eagerly to food, remaining as before, until the 
abdomen became immensely swollen, and deep cherry red. It measured after 
this meal, 2.5 mm. The following night, it refused to feed, and afterwards, 
molted for the second time at 4 P. M. July i6th. 
During the third instar, the nymph was offered food at 9 P. M., i8th July, 
but took little or nothing. .Vt 8 P. M., 22nd July, however, it w’as finally in- 
duced to feed until gorged. It then mea.sured 3.00 mm. 'Phe third ecdysis 
occurred at noon, 29th July. 
At 9 P. M., 2gth July, it was fed for the only time in the fourth instar, 
measuring after this meal 3.85 mm. The fourth ecdysis occurred at 7 P. M., 
2nd August, and in the fifth instar, the single meal was given at 9 P. M., 6th 
August, .\fter this very long meal, the insect mea.sured 4.85 mm. 
It became adult ab )ut 6 .V. M., iith August, much smaller than its parent, 
and lived in confinement with food until October 8th following. 
B. .\nother nymph hatching during the morning of 28th June, and con- 
fined as in foregoing, was fed for the first time on July gth, or ten days after 
a. The measurements of this insect agree with those given under description of the stages, and therefore the 
Increase in si2e from feeding can be calculated. 
