62 PRINCIPAL CACTUS INSECTS OF UNITED STATES. 



Page. 



Chdinidea vittigera, egg, description 18 



hibernation 19 



injury, nature 16-17 



life history L&-19 



nymphal stages, description L8 \') 



varial ions 17 



Chelanus laticinctus, parasite of cactus insect (MelUara dentata) 2S 



ChUocorus cacti, enemy of cactus insect (Dactylopius confusus) 24, 46 



Chlorops quinquepunctata incidentally associated with cactus 53 



( Tiorizagrotis soror, an injurious cactus insect 1 5, 44 



( tirysis sp. frequenting flowers of cactus •}') 



< 7iry8omela auript /mis frequenting (lowers of cactus 49 



( 'm modus mavortius incidentally ass tciated with cactus 01 



Coccidae attacking roots and stems of cactus 15 



Coccus (see also Dactylopius). 



Coccus cacti, bibliographic reference '. . . 55 



confusum, bibliographic reference 55 



Cochineal, early history of industry 23, 24 



former extent of industry 9 



insect (see also Dactylopius coccus). 



exports from Canary Islands 9 



not a native of the United States 2:! 



cottony. (See Dactylopius confusus.) 



Coenopoeus palmeri, bibliographic reference 54 



Colaspoides macrocephalus frequenting flowers of cactus i !) 



Coleocerus marmoratus incidentally associated with cactus 52 



Compsomeris 4-notata incidentally associated with cactus 53 



Compsus auricephalus incidentally associated with cactus 52 



Copestylum marginatum , an injurious cactus insect ;;: 



bibliographic references 



M'iseochara valida reared from puparium 47 



scavenger in cactus 48 



Cornifrons clautalis, an injurious cactus insect 35, i 1 



Ccrythuca decens in list of injurious cactus insects 41 



Cossonus hubbardi incidentally associated with cactus •"»_' 



Cremastogaster lineolata incidentally associated with cactus ~v2 



sp., attendant on aphis on Opuntia versicolor and puntia fulgida . 52 



incidentally associated with cactus 52 



Cutworm. (See Chorkagrotis soror.) 



Cycloneda munda, enemy of cactus insect (Dactylopius confusus 1 24,46 



< 'inn us angustus incidentally associated with cactus 52 



( )/phomyia schaeJTeri, scavenger in cactus 1^ 



Dactylopius 1 ( oceus), near confusus, in list of injurious cactus insects 42 



spp. in list of injurious cactus insects lii 



coccus (see also Cochineal insect). 



in list of injurious cactus insects 12 



confusus, an injurious cactus insect L3, 23 25, 42 



control 2 



enemies 24 



prey of ( 'hi l< ><■<„■ us met', • Hi 



Cycloneda munda !<s 



Drosoj)bild aiiiji, lophila 17 



punctulata 46 



