- 206 
ILLINOIS 
The percentages of individuals of the various species present in 
Illinois, arranged according to crops infested, arc summarized as follows: 
Graded roadside Percent 
1. Melanoplus f emur-ruhrum 21 
2 . M. dif ferentialis 9 
3. M. mexi canus 2 
4. Syrbula admirabilis 1 
5. Schistocerca a, americanar 1 
6. 15 other species 66 
lymphs - 60 
Pasture grassland 
1. Melanoplus femur- rub rum 13 
2. Syrhul'a admirabili s 5 
3. M. mexicanus 4 
4. Orphulella speciosa 3 
5. M. differentialis 2 
6. 10 other species 73 
Nymphs - 66 
Haste farmland 
1. Melanoplus differentialis 12 
2. M. f emur-ruhrum 9 
3. M. mexi canus 3 
4. Schistocerca a. americana 2 
5. Ageneotettix d. deorum 2 
6. 13 other species 72 
Nymphs - 63 
Corn 
1. Melanoplus differentialis 38 
2. M. f emur-ruhrum 17 
3. M. mexi canus 3 
4. Lichronorpha viridis 2 
5. Campylocantha o. olivacea. 1 
6. 4 other species 39 
Nymphs - 37 
Legumes Percent 
1. Melanoplus f emur-ruhrum 23 
2. M. differentialis 13 
3. H. mexi canus 10 
4. Chortippus viridifasciata 1 
5. Schistocerca a. americana 1 
6. 10 other species 52 
Nymphs - 47 
Small grain 
1, Helamoxilus femur- ruhrum 27 
2 . M. mexi canus 11 
3* M, differentialis 6 
4. Chortippus viridifasciata 2 
5. Campylocantha o. olivacea 1 
6. 9 other species 53 
Nymphs - 49 
Tame-hay crops 
1. Melanoplus femur- ruhrum 35 
2. M. differentialis 6 
3. Chortippus viridifasciata 2 
4. M. mexi canus 2 
5. OrphuMla speciosa 2 
6. 3 other species 53 
Nymphs - 51 
Hooded pasture 
1. Melanoplus femur- ruhrum 64 
2. M. differentialis 6 
3. Hippiscus rugosus 3 
4. M. mexi canus 2 
5. Orphulella speciosa. 2 
6. 3 other species 23 
Nymphs - 18 
P erce~ntage of grand total 
1. Melanoplus f emur-ruhrum 21 
2. M, differentialis 9 
3. M. mexi canus 6 
4. Syrbula admirahilis 2 
5. Chortippus viridifasciata 1 
6. 19 other species-- 61 
Nymphs - 55 
