MR. NEWPORT ON THE TEMPERATURE OF INSECTS 
291 
Table IV. 
A Table exhibiting the Temperature of Insects of different Species under various cir- 
cumstances, and in their different states, compared with the Temperature of the 
Atmosphere at the time of making the observation. 
Division 1 . Volant Insects, (a.) Diurnal Species. 
No. of Exp. 
Order. 
Species and state. 
Period of observation. 
No. of 
Specimens. 
Atmo- 
sphere. 
Insect. 
Difference. 
Remarks. 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
2] 
22 
23 
24 
25 
26 
27 
28 
29 
30 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
41 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Hymenoptera, 1834. 
Bombus terrestris, perfect. 
Bombas terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus lapidarius, perfect. 
Bombus muscorum, perfect. 
Bombus Jonella, perfect. 
Bombus Jonella, perfect. 
Bombus Jonella, perfect. 
Bombus Jonella, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestiis, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
Bombus terrestris, perfect. 
June 7. A.M. 
A.M. 
A.M. 
A.M. 
9. A.M. 12 
A.M. 12 
A.M. 12 
P.M. 6 
P.M. 6 
P.M. 6 
P.M. 8-2- 
29. p.m. 5 
July 10. a.m. 12 
P.M. H 
P.M. 2-| 
Midnight 12§ 
July 11. a.m. 6 
Midnight 12 
July 12. a.m. 7 
13. a.m. 8 
a.m. 8^ 
a.m. 8J 
a.m. 9 
A.M. 9 
A.M. 9§ 
A.M. 12 
P.M. 1 
P.M. 2 j- 
P.M. 4 
P.M. 10 
Midnight 12 
14. P.M. 1£ 
P.M. 2 
P.M. 3 
P.M. 5 
P.M. 11 
15. A.M. 8^- 
A.M. 9^ 
A.M. 10J 
P.M. 10 
P.M. 11 
i 
5 
1 
5 
1 
1 
1 
1 
1 
1 
1 
1 
1 
4 
7 
7 
1 
7 
7 
7 
4 
1 
1 
1 
1 
1 
1 
4 
1 
1 
1 
1 
1 
1 
o lo 
66-9 73-4 
66-9 76-2 
66- 9 73-4 
69- 4 76-2 
68 \77-o 
68 .71-5 
68 172-2 
68-9 74-7 
68-9 74-7 
69 75-4 
68-2 71-3 
59 | ©7*5 
70- 5 77 
70 80-2 
70- 5 80-4 
68- 5 80-3 
67 ' 77-3 
67- 5 78 
68- 7 76-5 
71- 8 84-1 
72- 5 89-2 
72-5 90-2 
72-5 92-3 
72-5 91-5 
72-7 91 
70- 2 92-5 
72-2 85 
72- 5 941 
73- 5 92 
69 173-5 
68 I 83-2 
69- 5 89-4 
69- 5 92-2 
69-5 91 
73-4 94-2 
68 183 
68-2 88-2 
71 91 
72 '93-2 
72-2 91-9 
71- 6 85 
o 
6-5 
9-3 
6-5 
6-8 
9-5 
3- 5 
4- 2 
5- 8 
5- 8 
6- 4 
3- 1 
8- 5 
6- 5 
10-2 
9- 9 
11-8 
10-3 
10-5 
7- 8 
12- 3 
16- 7 
1 7- 7 
19-8 
19 
18- 3 
22-3 
12-8 
21-6 
19- 5 
4- 5 
15-2 
19- 9 
22-7 
21-5 
20- 8 
15 
20 
20 
21-2 
18-7 
13- 4j 
In each of these observations, which 
were all made within two or three 
hours of the insects being captured, 
the individuals were in a state of great 
excitement, excepting only Bombus 
lapidarius, which is a species that ap- 
pears to be less readily excited than 
the others. 
- 
After great excitement. 
Temperature ofa nest of this species 
containing about thirty individuals 
and brood comb. The nest was con- 
>tained in a box about seven inches 
square, and closed at night with a lid. 
Insects excited, but not in contact 
with the thermometer. 
Nurse Bees moderately excited. 
Nursing on a single cell, which con- 
tained a nymph that was developed 
from it about eight hours afterwards ; 
during this incubating the Nurse Bee 
respired at the rate of 120 per minute. 
These observations show the great 
power which the Nurse Bees have of 
producing heat at will during the pe- 
riod of developing the nymphs. This 
evolution of heat is never produced 
when the insect is remaining perfectly 
’ quiet, but always occurs when the in- 
dividual is much excited and respiring 
very rapidly. In those cases in the 
Table where a small degree of heat is 
indicated the insect was comparatively 
but little excited. 
2 Q 
MDCCCXXXVlt. 
