INDEX. 69 



Page. 



Vpuntia jicus-iwlicti. food plain of Diospu echinocacti 42 



result of work of insect therein described as abnormal 



fruit 35 



fuhjida. bibliographic reference 50 



food plant of aphis 52, 53 



( 'h< linidia sp 20. 40 



Dactylopiu8 tomentosus 42 



Piaspis cacti 12 



echinocacti cacti 12 



Liotr<>j)is contaminatus 36, 40 



Onychobaris mystica 44 



Volucella avidu a scavenger therein 48 



Icptocaulis, bibliographic reference 56 



flowers frequented by Diadasia australis rinconis 50 



food plant of Diaspis echinocacti cacti 42 



Disonycha varicornis 22. 43 



Gerstsecheria olathrata 30. 44 



Onychobaris mystica -44 



lindheimeri, Apanteles I Pseudapanteles) sp. taken thereat 40 



Euglossa suri)iamensis thereon 53 



flowers frequented by Diadasia australis- rinconis 50 



food plant of Diadasia echinocacti cadi 42 



littoral is, bibliographic reference 50 



flowers frequented by Diadasia australis opuntio 50 



"longioorns," common name for species of Moneilema 13 



missouriensis, food plant of Melitara dentata 28 



polyantha, food plant of Dactylopius (Coccus i sp 42 



Melitara prodenialis 28 



spp., bibliographic reference 55 



versicolor, food plant of aphis 52, 53 



Chelinidea sp 20 



vulgaris, food plant of Gerstseckeria hubbardi 30, 43 



Melitara prodenialis 28 



Opuntiaspis philococcus. (See Lepidosaphes [Opuntiaspis] philococcus.) 



Oscinis coxendix incidentally associated with cactus 53 



Othnius soiccionis incidentally associated with cactus 52 



Ozamia lucidalis, an injurious cactus insect 13. 30, 44 



Pachycondyla harpax incidentally associated with cactus 52 



Paratiphia sp. incidentally associated with cactus 53 



Daromalus consors, scavenger in cactus 48 



gilensis, scavenger in cactus 48 



opuntix, scavenger in cactus 48 



sp., scavenger in cactus * 48 



Pasimachus en I if amicus incidentally associated with cactus 51 



dt pnssus incidentally associated with cacl us 51 



I't lo8oma capillasum, scavenger in cactus 47 



P< rdita megaccphala frequenting flowers of cactus 50 



I't risparium. sp., fungous disease of cactus, probable disseminal too by ( % linidea 



vittigera 17 



j>ht uioh <p. incidentally associated with cactus 52 



Philt urus trihrosus incidentally associated with cactus 51 



Phorbla fuscicrps. scavenger in cactus 49 



Phorocera comstocki, parasite of cactus insect (Melitara i 46 



Melitara junctolinet lla 27 



