180 THE MEXICAN COTTON-BOLL WEEVIL. 



Page. 



Boll weevil, history 15-20 



in Alabama 20 



Arkansas 20 



Costa Rica 20 



Cuba 16, 19, 21 



Florida 20 



Guatemala 18 



"Laguna " district of Mexico, discovery 18 



Louisiana 20 



Mexico 15,16,19,20 



Mississippi 20 



Oklahoma 20 



Texas 20 



• infestation, maximum, and its effect on multiplication 79-80 



progress, in fields 77-79 



insect control by months 144-145 



highest records 145 



enemies 136-145 



insects mistaken therefor 29-30 



intentional transportation 94 



invasion of Alabama 19 



Arkansas 19 



Florida 20 



Louisiana IS 



Mississippi 19 



Oklahoma 19 



Texas 16 



larva, description 33-34 



duration of stage 66 



food habits 65 



growth 65 



molts 66 



life cycle - 69-74 



average duration 69 



in hanging squares 73 



variations due to location of developing stage 69 



sex 69 



temperature 70-72 



time of falling of infested scpiares 69-70 



in bolls 72 



miscellaneous 72-73 



history, summary 32-33 



losses due thereto 21-26 



compensation therefor 26-27 



indirect, due thereto 26 



mortality by sections 119-120 



due to heat and dryness 122-124 



in all classes of cotton forms 118-120 



natural control 118-146 



effect of defoliation of cotton 20 



origin 15-20 



oviposition, act 56-58 



activity at various times of day 58-59 



age at beginning 53-54 



dependence thereof upon food obtained from squares.. 55-56 



effects upon squares 61-62 



examination of squares before the act 54 



period 61 



place of egg deposition 56 



seasonal rate 59-60 



selection of squares 54-55 



stimulating effect of abundance of squares 58 



time required to deposit an egg 58 



parasite control by years 144 



parasites, rotation of hosts 143 



parthenogenesis 53 



