Gr. H. F. Nuttall 
417 
Longevity of unfed, A. hebraeum. 
Lot N. 1732. All stages maintained at room-temperature, averaging ca. 16“ C. 
Larvae. 
Progeny of 
Larvae emerged 
No. of days 
which larvae 
? No. 
from egg ou 
survived unfed 
Remarks 
1 
20. XI. 1912 
240 days 
[Note : — Lounsbury (4) states that 
2 
6. vn. 1913 
110 
unfed larvae survived for 7 
3 
21. vn. 
221 
months (ca. 210 days) in a 
4 
2. vm. 
266 
corked tube kept in a cool 
5 
6. vm. 
184 
place.] 
6 
12. vm. 
335 
7 
12. IX. 
225 
8 
13. IX. 
350 
9 
16. IX. 
343 
10 
16. IX. 
310 
11 
16. IX. 
310 
12 
17. IX. 
346 
13 
17. IX. 
346 
14 
17. IX. 
340 
15 
17. IX. 
346 
16 
18. IX. 
298 
Nymphs. 
Progeny of Date of 
? No. emergence 
1 10. X. 1913 
No. of days 
nymphs lived 
unfed Remarks 
250 days [Note :—Lounsbury (4) states that 
unfed nymphs lived 6 months 
when kept cool.] 
Adults. 
Progeny of Date of 
J No. emergence 
1 7-12. IV. 1913 
2 1. XU. 
3 9. xn. 
Examined on day 
543 there were 8 alive (8 (J) and 307 dead (181 (J 126 $). 
660 there were 3 still surviving. 
347 there were 77 aUve (42 (J 35 $) and 25 dead (\2S 13$) 
421 there were still surviving 17 adults (15 (J 2 $) 55 out 
of the 77, 56 (23 S 32 $) having died. 
340 there were 615 alive (34 cj, 181 $) and 310 dead 
(170,?, 140$) 
432 there were still surviving 262 adults (167 (J, 95$) 
out of the 515, 253 (167 St 86$) having died. 
[Note .-—Lounsbury (2, 3) found that few adults lived longer than 6| months when kept 
in a cool place; one $ h'ved 11 months rmfed.] 
