1975] 
Erickson — Papilio polyxenes 
123 
Table 3. Continued. 
Plant species 
Efficiency 
of conversion 
of digested 
matterl , 2 
Larval wt. 
gain (mg) 1 * 3 
Consumption 
index 1 , 4 
Larval wt. 
ga i n (mg 
dry wt./ 
day) 1 , 5^ 
Cicuta maculata 
45.29±4.67 
31.0412.48 
2.9210.19 
1 1 .4610.66 
Coelopleurum lucldum 
3I.76±I .52 
17.3210.87 
3.3710.10 
5.7810.45 
Conium macu latum 
39.53+3.58 
23.7911.65 
2.4U0. 12 
7.3310.60 
Cryptotaenia canadensis 
42.3I±5.38 
17.7611 .89 
2.8810.30 
6.6011.02 
Daucus carota 
28.00±2.30 
19.0512.15 
3.2310.20 
5.9810.68 
Heracleum maximum 
17.1411.50 
25.6411.69 
4.1110.25 
8.6510.60 
Heracleum sphondylium 
20.6710'. 99 
29.8411.34 
3.9910. 19 
10.0510.46 
Imperatoria ostruthium 
40. 821 f. 50 
26.2211.76 
2.4010.06 
7.5310.50 
Levisticum officinale 
41.6511.92 
20.7312.41 
2.3310.09 
5.6910.66 
Pastinaca sativa 
36.0113.12 
16.2011.82 
2.4310.15 
5.3610.60 
Pseudotaenidia montana- 
64.0515.15 
21 .3212.38 
2.1010.04 
4.6710.59 
Si urn suave 
63.4512.75 
36.8211.96 
1.6210.04' 
1 1 .7110.66 
Taenidia inteqerrima 
40. 1814.63 
23.2111.75 
2.9610.27 
8.2310.68 
Thaspium barb inode 
51.5315.33 
23.0212.51 
2.2410. 13 
5.3710.81 
Zizia aptera 
66.8613.70 
40.3711.67 
1 .9610.08 
13.8610.47 
Zizia aurea 
56.6613.67 
26.6011.23 
2.9010.10 
9.8810.33 
*The significance values 
of the 'T* statistic with 30 
df are: 0.05 
= ±2.042, 
0.01 = ±2.750. 
2 T = 1.019 
3 T = 2.814 
4 T = 1.937 
5 T = 2.510 
