28o Field Museum of Natural History — Zoology, Vol. XIII. 



Cyanolesbia berlepschi'* Hartert. Berlepsch's Sylph. 



Cyanolesbia berlepschi Hartert, Bull. Brit., Orn. Club., VIII, 1898, p. 16 

 (Cumana, Venezuela); Id., Ibis, 1899, p. 127 (Cumana, Caripe, Venezuela); 

 Id., Nov. Zool., V, 1898, p. 514; Id., Das Tierreich, 1900, p. 177. 



Range: Northeastern Venezuela (Cumana region). 



Genus NEOLESBIA Salvin. 



Neoleshia Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 145 (Type Cyanolesbia 

 nehrkorni Beriepsch). 



Neolesbia nehrkorni Beriepsch. Nehrkorn's Blue-tailed Sylph. 



Cyanolesbia nehrkorni Berlepsch, Journ. fur Omith., 1887, p. 326 (Bogota); 



Id., Zeitschr. Gas. Orn., IV, 1887, p. 178, pi. 3, Fig. i. 

 Neolesbia nehrkorni Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 145; Boucard, 



Gen. Humming Bds., 1893-95, p. 99. 



Range: Colombia. 



Genus POLYONYMUS Heine. 



Polyonymus Heine, Joum. fur Ornith., 1863, p. 206 (Type Trochilus caroh 

 Bourcier). 



*Polyon3mius caroli (Bourcier). Charles's Comet. 



Trochilus caroli Bourcier, Proc. Zool. Soc. Lond., 1847, p. 48 (Peru). 



Cometes caroli Gould, Mon. Trochil., Ill, 1861, pi. 177. 



Sappho caroli Elliot, Syn. Trochil., 1879, p. 155; Salvin, Cat. Bds. Brit. Mus., 



XVI, 1892, p. 144. 

 Polyonymus caroli Simon, Nov. Zool., IX, 1902, p. 182 (Prov. Otuzco; Prov. 



Huamachuco, Peru); Hartert, Das Tierreich, 1900, p. 179. 

 Polynomus caroli Brabourne and Chubb, Bds. S. Am., I, 1912, p. 140, No. 1382. 



Range: Peru. 



i: Peru (Macate). 



Polyonymus griseiventris Tacz. Grey-bellied Comet. 



Cyanlhus griseiventris Taczanowski, Proc. Zool. Soc. Lond., 1883, p. 72 (Paucal, 

 Peru); Id., Orn. Perou, I, 1884, p. 334. 



Cyanolesbia griseiventris Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 137, foot- 

 note; Id., Nov. Zool., II, 1895, p. 15, pi. II, Fig. i (Cayabamba); Hartert, 

 Nov. Zool., I, 1894, P- 47. ill key. 



■ Cyanolesbia berlepschi Hartert: Male. Very similar to C. kingi kingi, but 

 differs from it and also from other allies in having a longer tail with the rectrices 

 wider (long outer feathers 10 mm. wide towards the tip) and becoming wider (instead 

 of narrower) where they pass beyond the next pair; blue gular spot larger than in 

 kingi; middle rectrices purplish blue on exposed portions with only a green tinge 

 at the tips. The female differs from all known forms of this Genus in having the 

 breast and entire abdomen white. 



