TABLE OP CONTENTS. XVII 



Page. 



Genus 37. Thalurania Gould 530 



Key to the Species and Subspecies of Thalurania 531 



114. Thalurania colombica (Bourcier) 532 



115. Thalurania colombica venusta (Gould ) 534 



116. Thalurania townsendi Ridgway 536 



117. Thalurania ridgwayi Nelson 537 



Genus 38. Lepidopyga Reichenbach 537 



Key to the Species of Lepidopyga 538 



118. Lepidopyga ca>ruleoguIaris (Gould) 539 



119. Lepidopyga l)oucardi (Mulsant) 541 



Genus 39. Riccordia Reichenbach 542 



Key to the Species and Subspecies of Riccordia 542 



120. Riccordia ricordii ricordii (Gervais) 543 



121. Riccordia ricordii seneo^-iridis (Palmer and Riley) 544 



122. Riccordia swainsonii (Lesson) 546 



Genus 40. Chlorostilbon Gould 547 



Key to the Species and Subspecies of Chlorostilbon 548 



123. Chlorostillion maugtei (Vieillot) 550 



124. Chlorostilbon auriceps (Gould) 551 



125. Chlorostilbon forficatus Ridgway 552 



126. Chlorostilbon canivetii canivetii (Lesson) 553 



127. Chforostilbon canivetii osberti (Gould) 556 



128. Chlorostilbon canivetii salvini (Gould) 557 



129. Chlorostilbon assimilis Lawrence 558 



130. Chlorostilbon caribosus Lawrence 559 



Genus 41. Heliothryx Boie 561 



131 . Heliothryx barroti (Bourcier and M vtlsant) 562 



Genus 42. Eugenes Gould 564 



Key to the Species of Eugenes 565 



132. Eugenes fulgens (Swainson) 565 



133. Eugenes si^ectabilis (Lawrence) 568 



Genus 43. Heliodoxa Gould 570 



Key to the Species and Subspecies of Heliodoxa 571 



134. Heliodoxa jacula henryi (Lawrence) 572 



Genus 44. Florisuga Bonaparte 575 



135. Florisuga mellivora (Linnaeus) 576 



Genus 45. Microchera Gould 580 



Key to the Species of Microchera 581 



136. Microchera albocorouata (Lawrence) 581 



137. Microchera parvirostris (Lawrence) 582 



Genus 46. Mellisuga Brisson 583 



Key to the Species of Mellisuga 584 



138. Mellisuga minima (Linnaeus) 584 



139. Mellisuga catharinse (Salle) 586 



Genus 47. Stellula Gould 587 



140. Stellula calliope (Gould) 588 



Genus 48. Atthis Reichenbach 591 



141. Atthis heloisa heloisa (Lesson and Delattre) 592 



142. Atthis heloisa ellioti (Ridgway) 594 



143. Atthis heloisa morcomi (Ridgway) 595 



Genus 49. Selasphorus Swainson 595 



Key to the Species of Selasphorus 596 



144. Selasphorus platycercus (Swainson) 597 



145. Selasphorus flammula Salvin 601 



81255°— Bull. 50—11 ii 



