** 334 
IOWA 
ihe percentages of individuals of the various species' present in Iowa, 
arranged according to crops infested, are summarized as follows: 
Com and sorghum Percent 
1. Melanoplus differential is 23 
2. M. mexicanus*^ — — — 21 
3. M. hivittatus 18 
4. M, femui^ruhium- 18 
5. M, packardii — .2 
6. Nymphs 18 
Red clover 
1. Melanoplus mexicanus 55 
2. M, feraur-ruhrum- 39 
3. Schistocerca a, americana 2 
4. Hippiscus rugosus 1 
5. Nymphs 3 
Small grain 
1 . Melanoplus femur-ruhrum 33 
2. M, mexicanus 16 
3. M, differen bialis 9 
4. Ageneotettix deorum 4 
5. M. ■bivi:ttatus ; 4 
6. 3 other species and nymphs 34 
Pi eld margins 
1 . Melanoplus femur-ruhrum- 37 
2. M. differentia.! is 16 
3. M. mexicat'.U'j— 10 
4. M. hivit ta-:. lO 
5. Tettigoniidae sp.— — ■ 5 
6. 9 other species and nymphs — — 22 
i 
■ Soybeans Percent 
* \ * !' 
1. Melanoplus femur-ruhrum 73 
2. M. mexicanus 15 
3. Nymphs 12 
Alfalfa and sweetclover 
1. Melanoplus femur-ruhrum 27 
2. M, mexicanus 21 
3. M. hivittatus 7 
4. M, differential is 3 
5. ' Ageneotettix deorum 3 
6. 5 other species and nymphs 39 
Weedy pasture 
1. Melanoplus femur-ruhrum-— 39 
2. M. mexicanus — - 24 
3. M. differentialis 7 
4. Ageneotettix deorum 4 
5. M, hivittatus 4 
6, 14 other species and nymphs 22 
Grand total 
1. Melanoplus femur-ruhrum 33 
2. M. mexicanus- 20 
‘3. M. differentialis 8 
4. M, hivittatus — 7 
5. Ageneotettix deorum — 3 
6, 19 other species and nymphs 29 
V.j. 
> ; h<>. 
