Vol. XVIII, pp. 1 1-18 January 20, 1905 



PROCEEDINGS 



OK THK 



BIOLOGICAL SOCIETY OF WASHINGTON 



DIAGNOSES ARAGALLORUM. 

 BY EDWARD L. GREP^NE. 



Responding to a ivqnt^st lately made that I would name some 

 nt'wly gathered specimens of Anif/dlhis from New ^Mexico, I 

 found it needful to examine with eare a copious supply of old 

 material resting chiefly in the National Herharium, from vari- 

 ous parts of the Southwest all the way from the Rio Colorado 

 tti the Ivio (irande; material that had heen accumulating from 

 the days of Lindheimer and Charles AVright more than a half- 

 century ago, down to our own time; most of it labelled Oxi/tropis 

 Lainhcrtl. 



Wdien, some seven years since, I was demonstrating the neces- 

 sity of adopting the generic name Aragallus, I came also to a 

 realization of the fact that the species of the genus in North 

 America were more numerous than had ever yet been indicated, 

 and in the mean time, l)esides several proposed as new by my- 

 self,* Mr. Nelson, of Wyoming,! and Mr. Rydberg, of New 

 York,t have added quite a number, theirs mostly from the 

 noi^thei-n IJocky Mountain region within the United States. 



Tn the course of my own newly resumed study of the genus, 

 I found that in the Texano-Neo-Mexican region there was much 

 more waiting to l^e done than I had anticipated; and I begin 

 this series of diagnoses with the essential characters of some 

 species belonging to this well defined geographic and climatic 

 region . 



* Pittonia, iii, 212, and iv, 69. 

 tErythea, vii, 57-64. 

 I Fl. Montana, 250-255. 



3— Proc. Biol. Soc. Wash., Vol. XVIII, 1905. (11) 



