INDEX. 71 



Page. 



Slylopidea picta, an injurious cactus insect 13, 22-23, 41 



Tachinoderus grandis, scavenger in cactus 47 



Tempyra bigutlula incidentally associated with cactus 51 



Terapus mniszechi, a myrmecophile 48 



scavenger in cactus 4S 



Termes flavipes, an injurious cactus insect 25, 40 



Tetranychus opuntise, bibliographic reference 57 



in list of cactus insects 40 



Thyridopteryx ephemerxformis, prey of Dicymolom ia julianqlis .» 44 



Tobacco extract in control of cottony cochineal insect 25 



Trichochrous (Pristocelis) texanus injuring blooms of cactus 32, 12 



Trichodes bibalteatus, enemy of Melitara and other cactus insects 46 



Trichopteryx sp., scavenger in cactus 47 



Triorophus nodiceps incidentally associated with cactus 51 



Tuna as food for man 10 



Tyrus elongatus, scavenger in cactus 47 



Ulosonia vnarginata incidentally associated with cartas 52 



Volucella avida, an injurious cactus insect 3s 



scavenger in cactus 48 



esuriens, an injurious cactus insect 38 



scavenger in cactus 48 



fasciata, an injurious cactus insect 38 



bibliographic references 54 



scavenger in cactus 48 



pusilla, an injurious cactus insect 38 



scavenger in cactus 48 



Whale-oil soap in control of cottony cochineal insect 25 



Xantholinus dmiidiatus, scavenger in cactus 47 



Xanthopygus cacti, scavenger in cactus 47 



Yuccas, food plants of Sixeonotus luteiceps 36, 41 



Zophodia dilatifasciella, enemy of cactus insect (Dactylopius confusus) 24, 46 



o 



