44 PRINCIPAL CACTUS INSECTS OF UNITED STATES. 



OerstaBckeria clathrata Le Conte. San Diego, Tex., April and May. Laredo, 

 Tex. May (H. G. Bubbard and E. A. Schwa rz) ; Hidalgo, Tex. (G. Beyer) ; 

 Uvalde, Tex., June (II. F. Wickham) ; Brownsville, Tex.. June (C. II. T. 

 Townsend) ; Santa Eita Mountains. Ariz.. May (H. G. Hubbard and K. A. 

 Schwarz >. 



Breeds in Opuntia leptocaulis. 



Qerstwckeria turoida Le Conte. Catalina Springs, Ariz.. April ill. <;. Hubbard 

 and E. A. Schwarz); Tucson, Ariz.. January (II. G. Hubbard and E. A. 

 Schwarz) ; Fort Grant, Ariz.. July ill. <;. Hubbard and B. a. Schwarz). 



Gerstwckeria opuntice Pierce. Encinal, Tex., April (J. D. Mitchell). 



Gei'stackeria <<ici<>i,ii<i<i<i Pierce. Porl [sabel, Tex., May (II. S. Barber); 

 Brownsville, Tex. (C. H. T. Townsend). 



Onychobaris mystica Casey. Southern Texas, Arizona, and Now Mexico, on 

 Opimtia leptocaulis i E. A. Schwarz) ; Tucson, Ariz., in 0. fulgida. 



*CactophagM spinolw Gyllenhal (Syn.: validus Le Conte). (See Champion, 

 Biol. Centr.-Amer.) California. Arizona. Mexico, many localities. Larva 

 and pupa figured by Duges (La Naturaleza, vol. 5, 121). 

 According to Duges breeds in " Cactus opuntia." 



CacLophagus striatoforatus Gyllenhal. Attacks Cereus in Costa Rica and Co- 

 lombia. (See Champion. Biol. Centr.-Amer.. Coleoptera, vol. 4. 7. p. 84. 



* Cactopinus hubbardi Schwarz. Forms mines in Cereus. 



LEPIDOPTERA. 



Apantesis urge Drury. 



Feeding on cactus. (See Forbes. 23d Kept. Ins. 111., p. 777. 1905.) 



Chorizagrotis soror Smith. San Antonio, Tex., February (D. Griffiths). 



Larvae had formed canals through underground portions of plants. A serious 

 enemy of young plantings. According to Dr. Dyar, it is probably a general 

 feeder and not confined to cactus. 



Mimorista flavidissimalis Grote. Widespread in Texas, south of San Antonio 

 and west of Victoria. Brownsville, Victoria, and Beeville (J. D. Mitchell). 

 San Antonio and Sabinal (F. C. Pratt) : May to September. A very 

 destructive insect, attacking joints of Opuntia. 



Cornifrons elautalis Grote. Hondo, Tex. (J. D. Mitchell) : Tucson. Ariz. 

 Destructive to fruit. 



Dicymolomia opuntialis Dyar. San Diego and Riverside, Cal.. May (D. Grif- 

 fiths). Apparently forms mines in joints, but doubtfully included in this 

 list See following species. 



Dicymolomia julianalis Walker. Brownsville and Kerrville, Tex.. June. Ap- 

 parently forms mines in joints, but it is very doubtful whether it should 

 be considered a cactus insect. Gahan (Proc. Ent Soc. Wash., vol. 11, 

 ]). 66) records it as a predator on the eggs of Thyridopteryx ephemera- 

 f or in is Haworth. 



Ozamia luddalis Walker. Victoria. San Antonio, and Hondo. Tex.. May (J. D. 

 Mitchell). Infesting fruit. 



Melitara junctolineella Bulst. Kerrville. Tex. (H. Lacy); Corpus Christ!, Vic- 

 toria, Beeville, Hondo, Laredo, Tex. (J. I>. Mitchell); El Paso, Kerrville, 

 San Antonio, Tex. ( F. ('. Pratt). Tins and the other species of tin 1 genus 

 Live within the joints of Opuntia, causing Large swellings. The two dif- 

 ferent kinds of cocoons seem to Indicate that there are two sptvies pres- 

 ent in the cactus area. Tie- range of the two forms corroborates this 

 supposition. There are certain differences between the specimens, but they 

 .ire not sullicient to separate the series into two forms. 



