INDEX. 71 



Gtylopidea picta, an injurious cactus insect 13. 22 23, 41 



Tachinoderus grandis, scavenger in cactus -17 



Tempyra biguttula incidentally associated with cactus 51 



Terapus mni&echi, a myrmecophile 48 



scavenger in cactus -IS 



T<riiits /Id) ipes, an injurious cactus insect 25, 40 



Tt tranychus opuntisz, bibliographic reference 57 



in list, of cactus insects 10 



Thyridopteryz ephemeraeform%8, prey of Dicymolomia julianalis 44 



Tobacco extract in control of cottony cochineal insect 25 



Trichochrou8 (Pristocelis) texanus injuring blooms of cactus :vi. -12 



Trichodes bibultcatus, enemy of Melitara and other cactus insects 46 



Trichopteryx ep., scavenger in cactus 47 



Trioropku8 nodicepa incidentally associated with cactus 51 



Tuna as food for man 10 



Tyrus elongotus, scavenger in cactus 47 



Ulosonia morginota incidentally associated with cactus 52 



VoluoeUa avida, an injurious cactus insect 3g 



scavenger in cactus 48 



tswrienSy 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 



Xantholin us dimidiatus, scavenger in cactus 47 



Xanthopygus cacti, scavenger in cactus 47 



Yuccas, food plants of Sixconotus luteiceps 36, 41 



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



o 



