302 AMERICAN HYMENOPTERA. 



P. exclamans Ckll. M. V.* Extends to S. Jose de Guaymas, Mexico (Lower 



Sonoran). 

 P. senecionis Ckll. M. V* 

 P. verbesinse Ckll. M. V.*; with mutations nigrior Ckll., intermedia Ckll., 



macula ta Ckll. and cyanella Ckll. 

 P. asteris Ckll. M. V.* Extends to Salt Eiver Valley, Ariz. (Lower Sonorau). 

 P. larrearum Ckll. San Marcial.* 

 P. vag-ans Ckll. M. V.* 

 P. vespertilio Ckll. M. V.* 

 P. chrysoceras Ckll. M. V.* 

 P. igrnota Ckll. M. V.* 

 P. fallax Ckll. M. V.« 

 P. albipennis helianthi Ckll. M. V.* 

 P. callicerata Ckll. M. V. •■ 

 P. numerata Ckll. M. V.* 

 P. laticeps Ckll. M. V.* 

 P. tarda Ckll. M. V.* Extends, in modified form, to S. Jose de Guayraas, Mex. 



(Lower Sonorau). 

 P. bowardi Ckll. Alamogordo (V.). Typ. loc. San Jose de Guayraas, Mexico 



(Lower Sonoran). 

 P. n. sp. Vier. Alamogordo, at Dasylirion (V.). 



Locality Unknown. 

 P. nuda Ckll. " New Mexico." * 



IVOMADA Fabr. 



Canadian Zone. 



N. zebrata Cress. Beulah ; Eagle Creek, White Mts. 



N. beulahensis Ckll. Beulah.* 



N. aquilarum Ckll. Eagle Creek, White Mts.* 



N. schwarzi contractula Ckll. Beulah.* 



N. ruidosensis Ckll. Eio Ruidoso.* 



Canadian to Upper Sonoran. 

 N. taraxacella Ckll. Near Viveash Ranch, 8800 ft. ; Pecos; Placita.* 



Transition to Upper Sonoran. 

 N. vegana Ckll. S. F. ; L. V.* 



Upper Sonoran. 



N. xanthophila Ckll. L. V.* 



N. frag-ilis Cress. Pecos, fls. f^alix. 



N. placitensis Ckll. Placita,* fls. Primus. 



N. lippise Ckll. La Cueva, Organ Mts.* Visits Lippia. 



N. pecosensis Ckll. Pecos.* 



N. vallesina Ckll. Las Valles.* 



