SPECIES which ix.iikk THE PLANT. 43 



Minrhinii mutabilia Gory. According to Mr. B. a. Schwarz foods on fruit of 



Ccrcus. 



Moneilema ulkei Horn. Cotulla, Falfurrias. and Brownsville, 'Vox. (J. I). 

 Mitchell) ; Sabinal, Tex. (F. C. Pratt) ; Oakvllle, Tex. (F. 0. Bishopp). 



Larva' in roots; adults feed on joints. 



Monti!' mil variolate Thomson. Mexico (Dugea). 

 Breeds In M Cactus Opuntla." 



Moneilema annulatum Say. 



On Opuntla in Kansas (Popenoe.) 



Moneilema semipunotatum Le ('onto. 



on Opuntla in Kansas (Popenoe.) 



Honeilema crassum Le Conte. Ootulla and Maverick counties. Tex., May 

 (J. D. Mitchell); Encinal, El Paso, and Sabinal, Tex., April to September 

 i F. C. Pratt). 

 Larvae in roots; adults feed on joints. 



Moneilema spoliatum Horn. Encinal, Tex., May (1). Griffiths). 

 Larva* in loots; adults feed on joints. 



Moneilema Iwvithorajc White, Mex. 



• Moneilema gigas Le ('onto. 



Moneilema armatum Le Conte. 



Moneilema sp. Falfurrias, Tex., April (J. I). Mitchell). 



Camopwus palmeri Le Conte. Bred from steins of Opuntia bernardma, South- 

 ern California. 



Disonycha varicornis Horn. Devils River, Tex.. May (E. A. Schwarz and F. C. 

 Pratt) J San Antonio and Austin. Tex., April, August, and June (F. C. 

 Pratt). Confined to Opuntia hi>/<>c<nilis and similar species. 



Qerstwckeria hubbardi Le Conte. Breeds in the joints of Opuntia vulgaris fol- 

 lowing injury by Melitara sp. : taken at Crescent City and Lake Worth, 

 Fla., and Selma, Ala. (II. G. Hubbard and E. A. Schwarz). 



Qerstwckeria bifasciata Gerstaecker. Reared November 1, 1910, by F. L. Lew- 

 ton from Echinocactus setispinus collected in June at San Antonio, Tex. 



(it rsta .ckeria nobilis Le Conte. Breeds in the margins of the joints of Opuntia 

 engelmanni and causes great masses of black excrement and gum to form 

 on the outside of the joint. It has been taken at Dallas, Tex. (J. Boll) ; 

 San Antonio. Tex., November (H. Soltau) ; San Diego, Tex., April, May, 

 September (E. A. Schwarz) ; Beeville, Tex., April, eating fruit of Opuntia 

 (C. L. Marlatt) : Cotulla, Tex., April (F. C. Pratt) ; Live Oak County, Tex., 

 June (J. D. Mitchell); Floresville, Tex., October (F. C. Pratt); Corpus 

 Christi, Tex., May (A. C. Morgan), March (W. E. Hinds); Hondo, Tex.. 

 April (J. D. Mitchell) ; College Station, Tex., March (W. D. Pierce) ; 

 Enclnat Tex., April (J. D. Mitchell) ; Victoria, Tex., April (J. D. Mitchell). 



Qerstwckeria porosa Le Conte. Denver, Colorado Springs, Colo. (Wickham 

 and Soltau » : Sedalia, Colo. (II. Soltau) ; Albuquerque, N. Mex. (II. Soltau I ; 

 Mesilla Park, X. Mex. < C. X. Ainslie) : Kansas (Snow) ; Fort Grant. Ariz, 

 i II. G. Hubbard and E. A. Schwarz) : San Diego. Tex. (H. G. Hubbard and 

 E. A. Schwarz): Floresville. Tex. ( V. C. Pratt): Live Oak County, Tex. 

 1. 1. D. Mitchell'.: D'Hanis. Tex. (J. D. Mitchell); Hondo, Tex. (F. C. 

 Pratt). 

 The species breeds in flat cells in Hie discs of the joints of Opuntia. 



Qerstwckeria basalts Le Conte. Denver. Colo. (II. Soltau); Greeley and Canon 

 City. Colo. (H. Soltau) ; Sioux County. Xebr. (R. H. Wolco't ). 



