X Table of contents. 



Key to the Species and Subspecies of Dryobates — Continued Page. 



114. Dryobates pubescens homorus (Cabanis and Heine) 236 



115. Dryobates pubescens glacialis Grinnell 239 



116. Dryobates pubescens turati (Malherbe) 239 



117. Dryobates pubescens gairdnerii (Audubon) 241 



118. Dryobates nuttallii (Gambel) 242 



119. Dryobates scalaris scalaris (Wagler) 245 



120. Dryobates scalaris ridgway i Oberholser 247 



121. Dryobates scalaris percus Oberholser 248 



122. Dryobates scalaris parvus (Cabot) 248 



123. Dryobates scalaris leucoptilurus Oberholser 249 



124. Dryobates scalaris sinaloensis Ridgway 250 



125. Dryobates scalaris graysoni (Baird) 250 



126. Dryobates scalaris azelus Oberholser 251 



127. Dryobates scalaris agnus Oberholser 252 



128. Dryobates scalaris lucasanus (Xantus) 252 



129. Dryobates scalaris eremicus Oberholser 253 



130. Dryobates scalaris cactophilus Oberholser 254 



131. Dryobates scalaris centrophilus Oberholser 256 



132. Dryobates scalaris symplectus Oberholser 257 



133. Dryobates scalaris bairdi (Malherbe) 258 



134. Dryobates stricklandi (Malherbe) 259 



135. Dryobates arizonse arizonse (Hargitt) 261 



136. Dryobates arizonae fraterculus Ridgway 263 



Genus 19. Xenopicus Baird 264 



137. Xenopicus albolarvatus albolarvatus (Cassin) 265 



138. Xenopicus albolarvatus gravirostris (Grinnell) 267 



Genus 20. Phrenopicus Bonaparte 268 



139. Phrenopicus borealis (Vieillot) 269 



Genus 21. Sphyrapicus Baird 272 



Key to the Species and Subspecies(?) of Sphyrapicus 273 



140. Sphyrapicus varius varius (Linnaeus) 274 



141. Sphyrapicus varius nuchalis Baird 279 



142. Sphyrapicus ruber ruber (Gmelin) 282 



143. Sphyrapicus ruber notkensis (Suckow) 284 



144. Sphyrapicus thyroideus (Cassin) 286 



Genus 22. Picoides Lacepede 289 



Key to the Species and Subspecies of Picoides 290 



145. Picoides americanus americanus Brehm 291 



146. Picoides americanus fasciatus Baird 295 



147. Picoides americanus dorsalis (Baird) 297 



148. Picoides arcticus (Swainson) 298 



Genus 23. Picumnus Temminck 302 



Key to the Subspecies of Picumnus olivaceus 303 



149. Picumnus olivaceus panamensis Ridgway 304 



150. Picumnus olivaceus fiavotinctus (Ridgway) 306 



151. Picumnus olivaceus dimotus (Bangs) 307 



Genus 24. Nesoctites Hargitt 307 



152. Nesoctites micromegas (Sundevall) 308 



SUPERFAMILY CaPITONES. ThE BaRBETS AND HoNEY GuiDES 310 



Key to the Families of Capitones 310 



Family Capitonid^. The Barbets 311 



Key to the American Genera of Capitonidae 313 



Genus 1. Eubucco Bonaparte 314 



