Lincoln — A Review of the Genus Pedioecetes in Colorado. 85 



nape more rufous; feathers of lower hind neck, back and wing-coverts 

 without distinct barring as is the case in both columbianus and campes- 

 Iris. Under parts similar to campestris, but with dark markings much 

 larger and extending over the entire surface, except for narrow area on 

 belly and anal region; feathers of chest narrowly tipped with white; 

 dark markings intermediate in width between columbianus and campes- 

 tris, but with a distinct and persistent median band of pale grayish buff, 

 as faintly noted in occasional examples of campestris;* throat creamy 

 white (never ochraceous or buffy as in columbianus and campestris), un- 

 spotted, or (rarely) with minute markings of light dusky faintly sug- 

 gested ; lores soiled white ; wide streak of unbroken brownish dusky from 

 nostril to, and including, ear-coverts ; patch of dusky black spots on lower 

 cheeks more pronounced. 



Measurements of type (in millimeters). — Wing, 218.0; tail, 101.0; cul- 

 men from base, 24.8; culmen from nostril, 13.0; tarsus, 40.7. 

 Females average slightly smaller but differ in no other characters. 

 Range. — The former range of jamesi probably included the entire 

 Arkansas-South Platte Divide through Douglas and Elbert Counties to 

 the limits of the scrub-oak (near Limon); northward through the foot- 

 hills of the Front and Medicine Bow Ranges (Coal Creek and near Fort 

 Collins); eastward at its northern limits to the Laramie Plains, Wyo. 

 (Jay Em, Goshen Co.). Present range greatly restricted, with the center 

 of abundance at the type locality. 



Remarks. — The gray cast of the upper parts of jamesi is most striking, 

 particularly when compared with series of campestris and columbianus, 

 while the differences in breast markings and the light cream-colored 

 throat is equally obvious when viewed from beneath. 



In addition to the discovery of this race, as above described, sufficient 

 material has been accumulated to definitely ascertain the exact status of 

 the entire genus within the State, which in due fairness to previous 

 authors should be presented in full, as it contains the precise solution of 

 the enigma previously outlined, viz: — the unrecognized form described 

 above. 



The range of Pedioectes p. columbianus is now definitely known to ex- 

 tend in no place east of the Continental Divide, its distribution in Colorado 

 being roughly, the region to the west of this natural barrier, and from the 

 Wyoming line (Columbine, Routt Co.) south nearly or quite to the New 

 Mexican line (Pagosa Springs, Archuleta Co.). Surprise must be felt 

 that this conclusion was not reached years ago, as the high altitudes 

 prevalent on the divide must form a perfect barrier to any extensive 

 lateral movements of this or the related forms. The total absence of 

 authentic records, however, is conclusive evidence that such is actually 

 the case. 



The presence of campestris is of recent date in Colorado, the birds hav- 

 ing come into the State coincident with the Prairie Chickens ( Tympanu- 

 chus), with whom they are still found in some numbers. Present records 



*This character persists throughout the entire series of jamesi but is only found 

 suggested in occasional examples of campestris. 



