- 209 
IOTA 
The percentages of individuals of the various species present in 
Iowa, arranged according to crops infested, are summarized as folloxvs: 
1 . 
2 . 
3. 
4. 
5. 
S, 
1 . 
2 . 
3. 
4. 
5. 
6. 
1. 
2 . 
3. 
4. 
5. 
6 . 
1. 
2 . 
3. 
4. 
5. 
6 . 
Legumes 
Melanoplus femur- rubrum 
M« differentialis 
M. mexicanus 
1.1. bivittatus — — 
Ageneotettix d. deorum-' 
9 other species 
Nymphs - 52 
Percent 
-- " 21 “ 
— 12 
- 11 
3 
— 1 
- 52 
1. 
2 . 
3. 
4. 
5. 
6. 
Roadside 
Melanoplus femur- rubrum' 
M. differentialis 
M. bivittatus 
M. mexicanus 
Ageneotettix deorum 
11 other species 
Nymphs - 46 
Percent 
22 
15 
7 
7 
1 
48 
Pasture grassland 
Melanoplus femur -rub rum 32 
Ageneotettix deorum 9 
M. mexicanus 9 
M. differentialis S 
Orphulella speciosa 6 
16 other species 38 
Nymphs - 34 
Small grain 
1. Melanoplus mexicanus 36 
2. M. femur- rubrum 19 
3. M. differentialis 10 
4. M. bivittatus 5 
5. Ageneotettix deorum 4 
6. 8 other species - 26 
Idle land 
River bottom 
Melanoplus femur-rubrum 34 1, 
M. mexicanus 17 2. 
H. differentialis 10 3. 
M, bivittatus 5 4. 
M. keeleri luridus 2 5. 
9 other species 32 6. 
lfymphs - 28 
Melanoplus differentialis 17 
M. femur-rubrum 13 
M. bivittatus 10 
M, mexicanus 8 
Dissosteira Carolina 1 
3 other species 51 
Nymphs - 50 
Corn 
Melanoplus differentialis 52 1. 
M. bivittatus 19 2, 
M. mexicanus 9 3, 
M. femur-rubrum 7 4. 
Ageneotettix deorum 1 5. 
4 other species 12 6. 
Nymphs - 10 
Percentage of g 
Woody patches 
Melanoplus mexicanus 22 
M, femur-rubrum 18 
M. bivittatus IT 
M. differentialis 12 
Ageneotettix deorum 2 
2 other species 29 
Ifynphs - 28 
id total 
1. Melanoplus femur-rubrum 23 
2. II. mexicanus 13 
3. M. differentialis 13 
4. M, bivittatus 5 
5. Ageneotettix deorum 3 
6. 24 other species 43 
Nymphs - 40 
