42 principal Cactus insects of united states. 



Dactylopiua confusus Cockerell. (Cottony cochineal insect.) Throughout the 

 cactus region from Graham County. Ariz., southward, Texas. Florida, and 

 ( California. 



Feeds on joints of all species of Opuntia. 



Also present in hothouses throughout the country. 

 Dactylopiu8 (Coccus) near confusus. Barbados, W. I.. May (D. D. Morris). 

 Dactylopius coccus Costa. (Cochineal insect.) Recorded from California and 



Florida, hut probably introduced. Introduced in West Indies. Canaries, 

 India. Peru, Spain, and other .Mediterranean countries. 

 Daciylopius tomentosus Lamarck. Guanajuato, Mex., July (T. I). A. Cockerel] » : 

 New Mexico : Arizona. 



On ()jiniitia fulgida joints. 

 Dactylopius [Coccus) sp. Cape Town. South Africa (A. M. Cooper). 



On Opuntia polyantha. 

 Dactylopius (Coccus) sp. Colorado Desert, Cal., January 1 1 >. \v. Coquillett). 



San Bernardino, Cal. 

 Pseudococcus virgatus Cockerell. Brownsville. Tex. 



On "Jacobo" cactus, i See also Cockerell. Can. Ent., 1895, p. 259.) 

 Pseudococcus ooscurus Essig. California. 



On roots of Opuntia. 

 Pseudococcus longispinus Tar.idoni-Tozzetti (Syn. : Dactylopius longifllis Corn- 

 stock i . 



(See Lintner, 2d N. Y. Report, p. 56. i 

 On prickly pear at Waterbury, Conn. 

 Pseudococcus sp. Mesilla Park, X. Mex.. April (D. Griffiths). 



On joints of Opuntia cycloides. 

 Hi in rsia sp. 



On roots of cactus. 

 Diaspis cacti Comstock. Arizona and New Mexico. 



On 0])itnti<i fulgida, 0. aroorescens, and 0. engelmanni. 

 Diaspis cacti opunticola Newstead. Demarara. 



Diaspis echinocacti Bouche. According to Mrs. Fernald, Europe, India. Algeria, 

 Porto Rico. Mexico, New Mexico, New York. 

 On Opuntia ficus-indica, Echinocactus ottonis, and /•:. tenuispinus, etc 

 Diaspis echinocacti cacti Comstock. Laredo. Tex., March, on Opuntia i< pto- 

 cniilis and 0. lindheimeri I F. C Pratt); San Antonio. Tex. (J. T>. Mitch- 

 ell) : Arizona and New Mexico, on 0. fulgida, 0. aroorescens, and 0. engeh 

 manni (T. 1 >. A. Cockerell). According to Mrs. Fernald. Massachusetts 

 and New York ( gre< nhonses). Iowa. Arizona. Now Mexico. Brazil. India. 

 Mauritius, on Cactus, Cereus giganteus, ('. macrogonus, Echinocactus sp. 

 Diaspis echinocacti opuntiai Cockerell. Kingston, Jamaica (T. 1>. A. Cock- 

 erell) : Sierra Blanca, Tex., on opuntia aroorescens (C. II. T. Townsend) : 

 Demarara, Texas, Mexico, on 0. aroorescens and 0. elongata. 

 Pseudoparlatoria parlatorioides Comstock. Frontera, Mex. (C. II. T. Town- 

 send). 

 Lepidosaphes (Opuntiaspis) philococcus Cockerell. On opuntia in Mexico, ac- 

 cording to T. D. A. Cockerell in lift. 



COLEOPTERA. 



iochrous (Pristoscelis) texanus Le Conte. Albuquerque, X. Mex., June. 

 Zavalla County, Tex. i F. c. Pratl i : D'Hanis and Brownsville, Tex. (J. 1 >. 



Mil. -hell ). 



Occurs in ureal numliers in blooms, which are sometimes considerably 

 Injured. 



