70 PRINCIPAL CACTUS INSECTS OF UNITED STATES. 



Page. 



PhyUotreta pusilla frequenting flowers of cactus 49 



Physetoporus grossulus, scavenger in cactus 47 



PlatymetoptU8 ftl8t jfixms in list of injurious cactus insects 41 



Platynota rostrana, an injurious cactus insect 13, 3G. 45 



Platypedia putnami in list of injurious cactus insects 41 



Polistes, three Bpecies injurious to cactus 13 



Polish sflavus, an injurious cactus insect 36, 45 



rubiginosus, an injurious cactus insect 36, 45 



texanus, an injurious cactus insect 36, 45 



Pontia protodia incidentally associated with cactus 52 



/'/•- nolepis iriridula Bubsp. melanderi incidentally associated with cactus 53 



Prickly pear. (See Cactus and Opumia. 

 Pristoa lis texami8. (See Trichochroiis texanus.) 



Proarno valvata in list of injurious cactus insects 41 



f's. udococcus longispinus in list of injurious cactus insects 42 



obscuras, 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 brunnea incidentally associated with cactus 52 



Pseudoparlotoria parlatorioides in list of injurious cactus insects 42 



Pseudoscorpionida? taken from pulp of Cereus giganteus 53 



Pycnomutilla texana incidentally associated with cactus 53 



Randia, food plant of Platynota rostrana 45 



R< hit ia spinosa incidentally associated with cactus 51 



lilmgodera n. sp. incidentally associated with cactus 51 



f;i/n rsia sp. in list of injurious cactus insects 42 



Ilia sp., scavenger in cactus 49 



Rivinia, food plant of Platynota rostrana 45 



Saluria ardiferella, enemy of cactus insect {Dactylopius confasus I 24. 46 



Saprin us pennsylvanicus, scavenger in cactus I s ; 



Sapromyza vulgaris, scavenger in cactus 49 



Scale insects. (See Coccidse.) 



Scatopse sp., scavenger in cactus 4 s ! 



/- us hornii, enemy of cactus insect (Dactylopius confusus) 24. 46 



loewii, enemy of cactus insect (Dactylopius conf is - 24. 46 



a raptoria, enemy of cactus insects 45 



Sixeonotus luteiceps, an injurious cactus insect 36, 1 1 



rips hypocoproides, scavenger in cactus 18 



v cronyx spretus incidentally associated with cactus 52 



aceie. Lincodes Integra reared thereon 52 



S iwbugs, injury to Mammillaria phellosperma 53 



ophorus spinolx. (See Cactophagus spinolx.) 



gophora apicidt ntata incidentally associated with cactus 50 



brunneipennis incidentally associated with cactus 50 



tomyia tongicornis, 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 



prui! i incidentally associated with cactus 51 



Stomatocera rubra incidentally associated \\ iih cactus 52 



