64 PRINCIPAL CACTUS INSECTS OF UNITED STATES. 



Page. 



Drosophila ampelophila, enemy of cactus insect (Dactylopius confusus) 47 



punctulnta, enemy of cactus insect (Dactylopius confusus \ 46 



quinaria, bibliographic reference 54 



Dyotopasta yumcu lla, an injurious cactus insect 36, 45 



Echinocereufl, flowers frequented by Dialicius occidenialis 50 



food plant of aphis 53 



Echinoct n us Bp., flowers frequented by Ashmcadiclla echinocen i 50 



sp]).. food plants of Sixeonotus luteiceps 41 



Echinocactus ottonis, food plant of Diaspis echinocacti 42 



setipennis, food plant of Gerstsccheria bl/nsrlatu 43 



sp., food plant of Diaspis echinocacti cacti 42 



tenuispinus, food plant of Diaspis echinocacti 42 



wislizeni, flowers frequented by Augochlora neglectula 50 



Lithurgus echinocacti 50 



Eiphosoma texana, parasite of cactus insect (Mimorista flavidissimalis 22,46 



Elcodcs armata incidentally associated w ith cactus 52 



carbonaria incidentally associated with cactus 52 



var. soror incidentally associated with cactus 52 



texana incidentally associated with cactus 51 



tricostata incidentally associated with cactus 51 



ventricosa incidentally associated with cactus 52 



Emmenastus texanus incidentally associated with cactus 51 



Ephistemus cactophilus, scavenger in cactus 47 



Epicauta trichrus frequenting flowers of cactus 49 



Epiplatea scutellata incidentally associated with cactus 53 



Ej>ricromyiaJloridensis incidentally associated with cactus 53 



Erchomus convexus, scavenger in cactus 47 



punctipennis, scavenger in cactus 47 



Eriococcus coccineus, an injurious cactus insect 25, 41 



Eucsela sp. incidentally associated with cactus 53 



Eucera unicornis . (See Diadasia unicorn is . ) 



Euglossa surinamensis incidentally associated with < actus 53 



Eumicrus lucanus, scavenger in cactus 47 



Euphoria hernii frequenting flowers of cactus 32, 49 



Eupogonius vestitus frequenting flowers of cactus 49 



Eurymetopon muricatulum incidentally associated with cactus 51 



Eurytoma sp., parasite of cactus insects 40 



Exochomus latiusculus, enemy of cactus insect (Dactylopius confusus) 24, 45 



marginipennis, enemy of cactus insect (Dactylopius confusus \ 24. 45 



FaJagria sp., scavenger in cactus 47 



'■ Fly, droop-winged." (See Stictomyia lemgicornis. I 



Forelius maccoohi incidentally associated with cactus 53 



Formica subpolita attending aphis on Echinocereus •">:! 



incidentally associated with cactus 53 



Fungous disease. (See Peris porium sp.) 



( ramasidse taken from pulp of Ceri us giganU us 53 



Gasoline torch against Chelinidea vittigera 20 



Mi litara junctolineeUa 28 



Mimorista flavidissimalis 22 



Nam i" pallidicorn is 34 



Stylopidai pirtu 23 



teeckeria, Bystenjatic treatment of genus, bibliographic reference 57 



' <■!:< ri<t altemata, bibliographic reference 57 



basalis in list of injurious cactus insects. . 43 



