86 BANGS AND NOBLE— NEW WOODPECKER [aie 
wider; under parts paler, yellower, less olivaceous, —the belly immaculate, 
pale, dull yellow (the belly in true atricollis is narrowly banded). 
MEASUREMENTS (in millimeters). 
M.C.Z, no, Sex and age Wing Tail Tarsus Exposed culmen 
80,095 oad: 114 82 23.0 28 
80,098 o ad. 113 75 23.0 27 
80,100 oad. 118 81 2220 29 
80,096 9 ad. 120 85 21.5 26 
All of the specimens in the series were shot on the tall club- 
shaped cactus which is very common in the valley of the Huan- 
cabamba River. Most of the large clumps of cactus of this arid 
subtropical region show evidence of the depredations of wood- 
peckers, — chiefly this woodpecker. 
