156 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.41. 



Female :i Wing, 96.5-105 (100.4); tail, 52.5-60.5 (56.9); exposed 

 culmen, 18-21 (20.3); tarsus, 16.5-18.5 (17.3); middle toe, 11-13 

 (12.1). 



Type-locality. — Mouth of Nueces River, Texas. 

 Geographical distribution. — Middle southern United States and 

 northeastern Mexico: south to Calhoun County, southeastern Texas; 

 Xicotencatl, southern Tamauhpas; and Monterey, central western 

 Nuevo Leon; west to Santa Catarina, central western Nuevo Leon; 

 Sabinas, northeastern Coahuila; Samuels, Fort Lancaster, Grand 

 Falls, Gail, and Tascosa, western Texas; and Saint Charles Canyon, 

 southeastern Colorado; north to Swink, southeastern Colorado; 

 McClellan Creek (Gray County), Vernon, and Gainesville, northern 

 Texas; east to Springfield, southeastern Colorado; Smith County 

 and Houston, eastern Texas; San Fernando de Presas, and Soto la 

 Marina, eastern Tamaulipas. 



Tliis new subspecies differs from Dryohates scalaris hairdi, from 

 Hidalgo, much as does Dryohates scalaris cactopTiilus, except that it 

 is smaller, and still more extensively white on all the upper parts. 



This race reaches its extreme development in Texas; and specimens 

 from central Tamaulipas and central Nuevo Leon are not so light 

 above, showing a tendency toward Dryohates scalaris hairdi. They 

 are also somewhat more smoky below. There is, however, no differ- 

 ence in size between examples from Texas and Tamaulipas. 



Of this form, 170 specimens have been examined, the following 

 localities being represented: 



Colorado. — Saint Charles Canyon (Pueblo County). 

 Texas. — Mouth of Pecos River; Eagle Pass; Dan Diego; Vernon; 

 Kerrville; Samuels; Seguin; 7 miles west of Camp Verde; Rio 

 Grande City; Cameron County; mouth of Devils River; Blocker's 

 ranch, San Lorenzo Creek (Dimmitt County); Langtry; Del 

 Rio; Colorado; Fort Clark; Brownsville; San Antonio; Laredo; 

 Boerne; Concho County; Eastland; Lomita; Nueces River; 

 Comanche County; Cisco; Corpus Christi; Hidalgo; Brown wood; 

 Dallas; Leon Springs; Mud Creek (Val Verde County); Aransas 

 River; Santa Maria; Bexar County; Kendall County; mouth of 

 Nueces River; Uvalde; Coleman County. 

 CoaTiuila. — Sabinas. 

 Nuevo Leon. — Rodriguez; Santa Catarina; Monterey; San Juan 



Ranch; Boquillo. 

 Tamaulipas. — Forlon; Villagran; Soto la Marina; Mier; Camargo; 

 Matamoros; Xicotencatl; Rio del Pilon; Victoria; San Fernando 

 de Presas. 



1 Nineteen specimens, from Texas and Tamaulipas. 



