CONTENTS 



Page 



Introduction 1 



Checklists 9 



Insects and Mites Feeding on Cactus 9 



Insects 9 



Mites 12 



Scavengers Feeding on Cactus 12 



Predators on Dactylopius Species 12 



Parasites of Cactus Insects 13 



Cactaceae and Their Associated Insects and Mites 15 



Lepidoptera 29 



Lepidoptera: Phycitidae 29 



Laetilia Ragonot 30 



Laetilia coccidivora (Comstock) 30 



Melitara Walker 30 



Melitara prodenialis Walker 31 



Melitara dentata (Grote) 32 



Melitara doddalis Dyar 33 



Melitara Walker, sp 35 



Olycella Dyar 37 



Olycella junctolineella (Hulst) 38 



Olycella nephelepasa (Dyar) 39 



Olycella subumbrella (Dyar) 40 



Olyca Walker 41 



Olyca phryganoides Walker 42 



Alberada Heinrich 42 



Alberada parabates (Dyar) 42 



Alberada holochlora (Dyar) 43 



Nanaia Heinrich 44 



Nanaia substituta Heinrich 44 



Nanaia Heinrich, sp 44 



Cactoblastis Ragonot 44 



Cactoblastis cactorum (Berg) 45 



Cactoblastis doddi Heinrich 49 



Cactoblastis mundelli Heinrich 52 



Cactoblastis bucyrus Dyar 52 



Cahela Heinrich 52 



Cahela ponderosella (Barnes & McDunnough) 52 



Rumatha Heinrich 54 



Rumatha glaucatella (Hulst) 54 



Rumatha polingella (Dyar) 54 



V 



