The Cane Grubs of Australia. 
LENGTH oF ADULT AERIAL LIFE IN CONFINEMENT WiTH Foop. 
Material from Natural Habitats. 
20 
| | { 
Number of Beetles. 
ate 
Lot Number. | | nee a 
3 oF, Total 
e | | 
re 4 12 16 | Jan. 12 
ae Se 2 2 | Jan. 18 
Bo ul 1 O} Naaman 1 
4. we 1 1 Feb. 17 
iS Bc il 1 Feb. 17 
(BG 1 ] 2 dan. 4: 
hs | 2 7 9 Jan. 7 
Se. 2 1 3) dane <7 
ol 5 4 2 a aE NAG. 7 
LOM: oe 2 2 Jan. 12 
HAs 2 2 | Heb. 23 
PA 1 1 Feb. 6 
Lome 2 2 | Jan. 27 
Aa. 7 5 12) | Jan. 27 
15 1 1 Feb. 7 
Ge. 1 1 | Feb. 17 
ie: 1 re 1 | Jan. 12 
Ses 1 1 Jan. 12 
19. il 1 Jan. 28 
20 sie 1 1 Feb. 6 
21 oe 2 2 Jan. 12 
De an i] 1 Jan. 28 
Darin as 2 2) i Jans 14 
2A 5 ll 16 | Jan. 15 
VASES 1 me 1 Jane wl 
26: s Ae 1 1 | Jan. 11 
DQhleas 1 ae i ieklebe 19 
282% 1 1 | Feb. 9 
29 . 1 1 | Jan. 28 
Ome il 1 |Feb. 8 
ile 1 Ws Ie wane £2 
S20 II I Jan. 12 
333 < 2 2 | Jan. 14 
34. 7 6 13 | Dec. 24 
345) 16 4 4 8 Jan. 6 
ae 10 10 20) wan (8 
Sil 1 1 2 janes 
ote) <ome ie is ae 9 Feb. 7 
Bit aes oe ae A aa 39 | Feb. 10 
AQ: Als! Se sf 59 | Feb. 11 
AN ier. ae ae Ne 17 | Feb. 14 
42) Ss Bo) Ae o% 18 | Feb. 20 
Totals ..| 62 89 283 | 
Averages Bp Se on 
Date of Death, 
jy 
jay) 
i=} 
. 26 
20 
| 
Length of Life— 
Days. 
3 2 
14 14 
ee 10 
8 16 
‘ 11 
“ 10 
14 14 
8 8 
19 19 
5 5 
d 14 
11 
18 
aust 14 
i 11 
vA 7 
et 8 
8 | . 
| ll 
ed 11 
eee | 14 
: 11 
: 13 
; 12 
a ay | 12 
9 aS 
Bates | 18 
6 | : 
: 1l 
12 
Ee 12 
8 xf 
15 
- 12 
ee | 13 
13 13 
11 11 
10 10 
ll ll 
12 12 
ll 11 
10 | 10 
12 | 12 
213 | 455 
10-14 | 12 
The actual period of aerial existence is only approximated here. If 
beetles are confined before they have left the soil (and thus before they 
have taken food), they will live a considerable period of time, as shown 
