155 
Page. 
Pupa, length of stage 84 
in relation to external 
conditions 86 
Pupal cell, formation of 81 
influence of external conditions 
on form of 81 
variations in form of 81 
Pupal stage, mortality during 88 
Pupation 81, 83 
places for 81 
Pyrameis cardui 15 
Quiscalus quiscnla xneas 115 
Red-headed woodpecker 114 
Red-bellied woodpecker 114 
Red-winged blackbird 114 
Reducedtemperatures,effectof,oneggs 53 
growth of 
larvae . 67 
pupge 86 
Eemigia repanda 104 
Risper=bollworm 13 
Robber flies 110 
Robin 115 
Rotation of cotton with other crops 31 
Rose 18 
Rosebuds, character of injury to 71 
oviposition on 47 
Sialia sialis \ 115 
Sida spp 17 
eggs found on 47 
Sinea diadema 112 
Saccharuvi officinale 18 
Sarcophagidae 127 
Scavengers following the bollworm 126 
Scissor-tail Flycatcher 114 
Sderopogon latipennis Ill 
Seasonal history 102 
Sedge grass, eggs laid on 47 
Sexes, proportions of 92 
Sharpshooter 35, 106 
Shedding of squares and young bolls 36 
Soil, effect of, on pupae 87 
Solanum mammosum, eggs laid on 47 
rostratum '... 94 
Solenopsis geminata 108 
texana 108 
Solidago 19 
Sorghum 17 
eggs laid on 47 
Sparrow Hawk 114 
. Spizella pusilla 115 
socialis t . . . 115 
Squares, character of injury to 69 
Squash 17 
Staehys agraria 17 
agraria, eggs laid on 47 
Stages, larval, description of 57 
Stagmomantis Carolina 112 
Storms, effect of on eggs 55 
Strawberry 18 
Sturnella magna 115 
Submergence, effect of, on eggs 54 
Submergence, effect of, on pupse 88 
Sugarcane 18 
Page. 
Summer tanager 115 
Sun, effect of, on eggs 55 
pupte 87 
Sunflower 17 
Sweet corn moth = bollworm 13 
peas : 18 
Ijotato 19 
Synonymy 11 
Tachinidse 123 
Tassel-worm = bollworm 13 
Tdcnomus hcliothidis 119 
Temperature, effect of, on larvce 66 
pupse 87 
depth of pupal 
burrow 82 
Tetracha Carolina 112 
Thalpophila rubrescens = Heliothis obsoleta . . 11 
Thecla pa:as. See Calycopis cecrops 105 
Thryomanes bewickii cryptus 115 
Thryothorus ludovicianus 115 
Toads as bollworm enemies 112 
Tobacco, character of injury to 70 
eggs found on 47 
Tomatoes, character of injury to 71 
eggs found on 47 
injury to, by bollworm in Flor- 
ida 25 
bollworms 25 
Towhee 115 
Toxostoma rufum 115 
Transition zone, injury by bollworms in... 26 
Trap crops 180 
Trichogramma pretiosa 115 
Triphleps insidiosus 107 
Triticum, sp 18 
Tufted titmouse 115 
Tyrannus tyrannus 114 
Upland cotton, relative attractiveness of, 
to larvse 71 
Upper Austral zone, destructiveness of boll- 
worm in 27 
Upper Sonoran area, scarcity of bollworm 
in 28 
Utah, injury by bollworm in 29 
Variation of larvse and moths compared. . . 90 
moths ./ 89 
Varieties of moths 12, 89 
Virginia creeper, eggs laid on 47 
Washington , scarcity of bollworm in 26 
Wasps, as enemies of the bollworm 109 
Watermelon 17 
Weather in relation to bollworm injury 32 
Western lark sparrow 115 
Western United States, destructiveness of 
bollworm in 29 
Wheat 18 
Winthemia It- pustidata 123, 124 
Wyoming, scarcity of bollworm in 29 
Xanthium stritmarium 17 
Yellow-billed cuckoo 114 
Yellow-breasted chat 115 
Zea mays 17 
Zenaidura macroura 114 
