308 AMERICAN HYMENOPTERA. 



Transition to Middle Sonoran. 



M. pruina Smith. L. V. H. S. ; L. Y. ; (Shaves; M. Y. Extends to So. Calif. 

 (Lower Sonorau). 



Upper Sonoran. 



M. heterodonta Ckll. L. Y.*; Organ Mts. ; Raton, Aug. 26. 



M. brevis Say. Las Yalles. 



M. sayi Cress. Pecos; L. Y., fls. Verbena. 



M. emoryi Ckll. Pecos.* 



M. sexdentata Rob. Raton, July 31, 1903 {Karl Schivackbein). 



M. agustini Ckll. Pecos.* Extends to Los Angeles, Calif. (Lower Sonoran). 



Upper to Middle Sonoran. 



M. occidentalis Fox. Organ Mts.; M. Y.* ; Alamogordo (Y.). 



M. soledadensis Ckll. Organ Mts.*; M. V, 



M. cleomis lippise Ckll. Gila River ; Organ Mts.* ; Roswell ; Alaniogorda (V.) ; 



M. Y. 

 M. sidalcese Ckll. Lone Mtn.*; Organ Mts.; M. V.; Deniing. Fls. Prosopis, 



Opantia, etc. 



Middle Sonoran. 



M. chilopsidis Ckll. Rincon ; M. Y.* Fls. Prosopis and Chilopsis. 

 M. populi Ckll. M. Y.* 

 M. vallorum Ckll. Socorro; M. V.* 

 M. ne^wberryse Ckll. M. Y.* Fls. Prosopis. 

 M. townsendiana Ckll. Rincon; M. Y.* 

 M. casadse Ckll. M. Y.* 



M. prosopidus Ckll. Rincon; M. Y. ; Alamogordo (Y.). Fls. Prosopis and 

 Chilopsis. 



C<EL,IOXYS Latr. 



Canadian Zone. 

 C. moesta Cress, Beulah. 



C. porterse Ckll. Harvey's Ranch, 9600 ft.* ; Beulah (W. P. C). 

 C. alternata Say. Beulah. 



Canadian to Upper Sonoran. 



C. ribis Ckll. Beulah; Romeroville.* 



G. gilensis Ckll. Rio Ruidoso; S. F. ; Gila River*; Galliuas River. 



Transition to Middle Sonoran. 

 C. octodentata Say. S. F. ; L. Y. ; Gila River; M. Y. 



Upper Sonoran (and Probably Transition'). 



C. rufltarsis rhois Ckll. Rio Ruidoso*, at about 6500 ft., fls. Rhus. 



C. apacheorunj Ckll. Mescalero.* 



C. grindelise Ckll. Mescalero (a variety) ; L. Y.* 



Upper to Middle Sonoran. 

 C. sayi Rob. L. Y., M. Y. 



