70 PRINCIPAL CACTUS INSECTS OF UNITED STATES. 



Page. 



Phyllotreta piisilla frequenting flowers of cactus 49 



Physetoporas grossulus, scavenger in cactus 47 



PJatymetopius fuscifrons in list of injurious cactus insects 41 



I'hitynota rostrana, an injurious cactus insect 13. 36, 45 



Platypedia putnami in list of injurious cactus insects 41 



Polistes, three species injurious to cactus 13 



Polistes flavus, an injurious cactus insect 36, 45 



rubiginosus, an injurious cactus insect 36, 45 



texanus, an injurious cactus insect 36, 45 



Pontia protodice incidentally associated with cactus 52 



I'ii iiolepis viridula subsp. melanderi incidentally associated with cactus 53 



Prickly pear. (See Cactus and Opuntia.) 

 Pristocelis texanus. (See Trichochrous texanus.) 



Pmarno valvata in list of injurious cactus insects 41 



Pseudococcus longispinus in list of injurious cactus insects 42 



obscurus, bibliographic reference 57 



in list of injurious cactus insects 42 



sp. in list of injurious cactus insects 42 



virgatus in list of injurious cactus insects 42 



Pseudomyrma brunnca incidentally associated with cactus 52 



Pscudoparlatoria parlatorioidcs in list of injurious cactus insects 42 



Pseudoscorpionuke taken from pulp of Cercus giganteus 53 



Pycnomutilla texana incidentally associated with cactus 53 



Randia, food plant of Platynota rostrana 45 



Rehnia spinosa incidentally associated with cactus 51 



Rhagodera n. sp. incidentally associated with cactus 51 



Jx'ipersia sp. in list of injurious cactus insects 42 



/,'it( Ilia sp., scavenger in cactus 49 



Rivinia, food plant of Platynota rostrana 45 



Saluria ardiferella, enemy of cactus insect (Dactylopins confusus i 24, 46 



Saprinus pennsylvanieus, scavenger in cactus 48 



Sapromyza vulgaris, scavenger in cactus 49 



Scale insects. (See Coccidae.) 



Scatopse sp., scavenger in cactus 48 



Scymnus hornii, enemy of cactus insect (Dactylopius confusus) 24, 46 



loeivii, enemy of cactus insect (Dactylopius confusus) 24, 46 



Sinea raptoria, enemy of cactus insects 45 



Sixeonotus hdciceps, an injurious cactus insect 36, 41 



-^ in icrips hypocoproides, scavenger in cactus 48 



Smicronyx spretus incidentally associated with cactus 52 



Si ilanacese, Lineodcs Integra reared thereon 52 



S; iwbugs, injury to Mammillaria phellosperma 53 



Split nophorus spinolx. (See Cactophugus spinolx.) 



s jinngophora apicidentata incidentally associated with cactus 50 



liniuiieipennis incidentally associated with cactus 50 



Stictomyia lougicornis, an injurious cactus insect 39 



scavenger in cactus 49 



Stipator grandis incidentally associated with cactus 51 



haldemanni incidentally associated with cactus 51 



mitchelli incidentally associated with cactus 51 



nigromarginata incidentally associated with cactus 51 



pratti incidentally associated with cactus 51 



Simnalocera rubra incidentally associated with cactus 52 



