58 



Nelson, Netv Birds from ]\Texico and Guatemala. 



TA, 



The southern table-land region of Mexico is inhabited by a well 

 marked form of Redwing having a range nearly coincident with 

 that of typical A. giibernator. Like gubertiator of this region it is 

 the largest form of the species and has a stouter or heavier bill 

 than the others. 



Agelaius phoeniceus richmondi, new subspecies. Richmond's 



Redwing. 



Type, No. 144766, U. S. Nat. Museum, Dept. Agric. coll., $, from 

 Tlacotalpam, Vera Cruz, Mexico, April 21, 1894. Collected by E. W. 

 Nelson and E. A. Goldman (Orig. No. 1959). 



Distribution. — The Gulf coast lowlands of Mexico from near Tampico, 

 south through Yucatan to Nicaragua. 



Description. — The males of richmondi ave colored as in other forms of 

 this species. The females are but slightly marked with lighter on the 

 back. Below on the neck and breast, the fulvous streaks formed bv the 

 edgings of the feathers are so broad that they form the main color of 

 that area, the dark shaft markings appearing as narrow streaks. They 

 are much darker than the females of longirostris or bryanti in general 

 coloration. Both sexes differ from their neighboring forms in small size 

 and in having comparatively long, slender bills. 



The National Museum series contains specimens of this form 

 from various localities in Yucatan and on the east coast of Nica- 

 ragua. To the north they grade toward the larger northern birds. 



Mk.vsurements of Seven Specimens of Agelaius pluvniceus richmondi. 



