Lasius niger americanus — Continued. 
attendant on Clover-root Mealy Bug, 122. 
the Corn-Field Ant, habits and be- 
havior of, 27-40. 
attendant on Clover-root Mealy Bug, 121. 
laticinctus, Microdus, 65. 
Leaf-hoppers as hosts of Empusa i-phjerosper- 
ma, 91. 
Leaf-weevil, Clover. See Clover Leaf-weevil. 
Le Conte, J. L., and Horn, G. H., 114. 
leguminicola, Cecidomyia, 46. 
Dasyneura, 46, 100. 
Lettuce as food plant of Pea- or Clover- louse, 
67. 
Wild, as food plant of Clover Stem-borer, 
107. 
Leucanthemum as breeding plant of Clover 
Stem-borer, 110. 
leucanthemum, Chrysanthemum, 107. 
leucozonata, Glypta, 65. 
Lime and sulphur, effect of, on germination 
of seed-corn tested, 10. 
chlorid of. See under Chlorid. 
effect of, on germination of seed-corn tested, 
10. 
special test on reaction of Corn-Field Ant 
to, 22, 23. 
sulphur, and blue vitriol, effect of, on ger- 
mination of seed-corn tested, 10. 
and salt, effect of, on germination of 
seed-corn tested, 10. 
lineellus, Sitones, 116, 117. 
Lintner, J. A., 61. 
lobicornis, • Myrmica scabrinodis, 122. 
longicornis, Diabrotica, 24. 
Lucerne. See Alfalfa. 
Lyfol, effect of, on germination of seed-corn 
tested, 9, 13. 
M 
Machrocheles moestus protected in nests of 
Corn-Field Ant, 36. 
Macrosiphum, 68. 
pisi, 66-82, 103, 105, 106. See Pea- or 
Clover- louse, 
maculata, Megilla, 73, 74, 80. 
maculiventris, Podisus, 73, 75, 77. 
Mammoth Clover, 41. 
and the Clover Seed-caterpillar, 61. 
and the Clover Seed-midge, 46. 
freely eaten by Clover Leaf-weevil, 83. 
infested by Clover Seed-chalcid, 53. 
injured by Clover Stem-borer, 107. 
one of chief food plants of Clover Root- 
borer, 93. 
Mare's-tail as food plant of Clover Stem-borer, 
107. 
marginatum, Mesogramma, 73, 76. 
Matthews, W. C, 41. 
May-beetles, dead, as food of Corn-Field Ant, 
37. 
Mealy Bug, Clover-root. See Clover-root 
Mealy Bug. 
bugs in nests of Lasius niger americanus, 27. 
Medicago sativa, 83. See Alfalfa. 
Megilla maculata as enemy of Pea- or Clo- 
ver- louse, 73, 80. 
dates of emergence of, as beetle, 74. 
food of, 74. 
parasite of, 74-75, 80. 
Melilotus alba as food plant of Clover Stem- 
borer, 107. 
Mesogramma marginatum and M. po'.itum as 
enemies of Pea- or Clover- louse, 73, 76. 
date of emergence of adults of above 
species of ^Mesogramma, 73, 76. 
Microdus laticinctus as parasite of Clover Seed- 
caterpillar and its cocoons, 65. 
millefolium, Achillea, 107. 
Mite as enemy of Pea- or Clover- louse. 79. 
commonly inhabiting nests of Corn-Field 
Ant, 36. 
moestus, Machrocheles, 36. 
molesta, Solenopsis, 34, 38 (see Errata). 
Monell, J. T., 103, 104. 
Mosquitoes as hosts of Empusa sphaerosperma, 
91. 
mozardi, Languria, 106. 
Muriate of potash, 95. 
Murtfeldt, M. E., 65. 
Musk, effect of, on germination of seed-corn 
tested, 11. 
Mustard, effect of, on germination of seed- 
corn tested, 11. 
Myriapods as food of Corn-Field Ant, 37. 
Myrmica scabrinodis lobicornis attendant on 
Clover-root Mealy Bug, 122. 
N 
Nectarophora destructor, 66, 68. 
Nettle as food plant of Clover Stem-borer, 107. 
of Pea- or Clover- louse, 67. 
niger americanus, Lasius, 1 (see Errata), 27, 
122. 
Lasius, 121. 
Nitrate of soda, 95. 
Northern Corn Root-worm, protection against, 
24. 
novemnotata, Coccinella. 7.', 74. 
o 
obliqua, Allograpta, 73, 75, 76. 
obscurus, Hyalastinus, 92. 
oculata, Chrysopa, 73, 77. 78. 
Ocyptamus fuscipennis, 73. 
presumptive enemy of Pea- or Clover- 
louse, 76. 
Oicanthus confluens as enemy of Pea- or Clo- 
ver- louse, 73, 78-79. 
Oil of cloves, effect of, on germination of 
seed-corn -tested, 8, 9. 
of lemon and alcohol, effect of, on same 
tested, 8, 12. 
