184 THE MEXICAN COTTON-BOLL WEEVIL. 



Empidonax minimus, enemy of boll weevil 146 



trailli alnorum, enemy of boll weevil 146 



Ennyomma globosa. enemy of boll weevil 142 



cowpea curculio ( Chalcodermus seneus) 142 



Epicserus imbricatus mistaken for boll weevil 30 



Euphagus carolinus, enemy of boll weevil 146 



cyanocephalus, enemy of boll weevil 146 



Euphorbia stems attacked by Conotrachelus leucophseatus 30 



Eurytoma sp. , enemy of boll weevil 141 



tylodermatis, artificial increase of effectiveness as boll-weevil parasite. 143 



enemy of boll weevil 141 



Evarthrus sodalis, enemy of boll weevil 137 



sp., enemy of boll weevil ' 137 



Excelsior, duration of life of hibernated boll weevils fed thereon 48 



False indigo. (See Baptisia.) 



Farm hands, movement, factors in dissemination of boll weevil 93-94 



Faunal zone limitations upon boll weevil 29 



Flooding, effects upon boll weevil 131-132 



Flycatcher, alder. (See Empidonax trailli alnorum.) 

 crested. (See Myiarchus crinitus.) 

 least. (See Empidonax minimus.) 

 olive-sided. (See Nuttallornis borealis.) 

 scissor-tailed. (See Muscivora forficata.) 



Forelius maccooki, enemy of boll weevil 140 



Formica pallidifulva, enemy of boll weevil 140 



subpolita perpilosa, enemy of boll weevil 140 



Geothlypis trichas, enemy of boll weevil 146 



Gerseus penicellus mistaken for boll weevil 30 



visits cotton nectar 30 



picumnus mistaken for boll weevil 30 



visits cotton nectar 30 



Gerstseclceria nobilis attacks joints of prickly pear 30 



mistaken for boll weevil 30 



Ginning machinery used in repression of boll weevil 152-153 



Gossypium (see also Cotton). 



brasiliense, food plant of boll weevil 16, 31 



Grackle, bronzed. (See Quiscalus q. seneus.) 



great-tailed. (See Megaquiscalus major macrourus .) 

 Guatemalan ant. (See Ectatomma tuberculatum.) 

 Gum plant, broad-leaved. (See Sideranthus.) 



Habrocytus piercei, enemy of boll weevil 141 



Hay, duration of life of boll weevils fed thereon 48 



Heat, factor in boll-weevil mortality 122-1 24 



Helianthus (see also Sunflower). 



annuus, tested as food plant of boll weevil 32 



seed attacked by Desmoris constrictus 30 



Heliothis obsoleta an enemy of cotton 15 



Hibiscus africanus, buds, duration of life of boll weevils fed thereon 48 



tested as food plant of boll weevil 31, 32 



buds, Japanese, duration of life of boll weevils fed thereon 48 



esculentus tested as food plant of boll weevil 31 



leaf, duration of life of boll weevils fed theVeon 48 



manihot tested as food plant of boll weevil 31 



militaris, buds, duration of life of boll weevils fed thereon 48 



tested as food plant of boll weevil 31, 32 



moscheutos, buds, duration of life of boll weevils fed thereon 48 



tested as food plant of boll weevil 31,32 



vesicarius tested as food plant of boll weevil 31, 32 



Hirundo erythrogastra, enemy of boll weevil 146 



Hollyhock (see also Althaea sp.). 



buds, duration of life of boll weevils fed thereon 48 



Honey, attractiveness to boll weevil 43 



Hydnocera pallipennis, enemy of boll weevil 138 



pubescens, enemy of boll weevil 138 



Hylobius pales attacks pine bark 30 



mistaken for boll weevil 30 



