( 514 ) 



FURTHER NOTES ON HUMMING-BTRDS. 



Bt ERNST HARTERT. 

 The Genus C'YANOLESBIA. 



SINCE tho Catalogue of Birds, Vol. XVI., appeared, there have been several 

 articles on the genns Cyayiolesbia, one of the finest if not the most brilliant 

 of all the genera of Humming-Birds. In 1892 Count Berlepsch gave excellent 

 notes on the various forms in the Journal fiir Ornitholoyie, and described two 

 new forms, C. emmae and ('. caudata. In 1893 Boncard "proposed" eventually 

 the names C. meridana for C. raudala, C. columbiana for C. emmae, thus creating 

 two unnecessary synonyms. In 1S04 I gave a review of the genns in Nov. ZooL. 

 Vol. I. p. 47, recognizing the following forms : — 



1. C. griseiventris ; 2. C. mocoa ; 3. C. mocou smaragdina; 4. (\ enimae •. 

 5. C. gorgo ; 6. C. gorgo margarethae ; 7. ('. coelestin ; 8. C. raudata. 



In 1897 {Ibis p. 423) I confirmed my view of 1894, adding that I wns inclined to 

 regard forms 4, 5, 6, and 8 us only subspecifically related. In the same year (Xov. 

 ZooL. Vol. IV. p. 529) I adopted the name /■//;/// for gorgo. This had already been 

 done in the same year by Mons. E. Simon, who (Cut. Trochil. p. 34) recognized the 

 following forms of Cganolesbia : — 



1. C.kingi; 2. C . kingi margarethae ; 3. C. hingi euudatu : 4. t. hi ngi mocoa \ 

 5. C. kingi smarngdina ; 6. C. hingi emmae \ 7. ' '. codcstis \ while he removed 

 Cyanolesbiu griseiventris to the genns Polyonymus, the type of which was caroli. 



I believe that this treatment of the genus is perfectly correct. C. griseiventris 

 cannot possibly be retained in Cyanoleshia, the long, straight, pointed and strong beak, 

 the great width of the rectrices, the style of coloration of both se.xcs, bringing it 

 naturally together with caroli. This view was also strongly held by Mr. Baron, 

 who, from observing and collecting both genera frequently, told me {in lift.) that 

 C. gri.ieiventris was no Cyanolesbia, bnt belonged to another genus. 



As a new species must be added 



Cyanolesbia berlepschi Hartert. 



This most beautiful species of the genns has been briefly described in the Ihdl. 

 /I. (I. Club, November meeting 1898. It differs from its nearest allies, C. hinqi liimp 

 and ' '. kingi margarethae, as follows : — . 



The colour of the npperside is darker than that of C. k. margarethae, hnt not 

 as dark as it is in C. kingi kingi, although thiit varies to a certain extent. The tail 

 is longer, the rectrices wider, the outer being lo.j mm. long and I'l mm. wide 

 towards the tiji. Tliey become distinctly wider from where they j)ass beyond the 

 next pair, while in all the other forms they taper slightly towards the tip. The 

 colour of the rectrices is nearest to that of ('. kingi margarethae, but even slightly 

 more greenish purplish bine; the middle rectrices, however, are not greenish for 

 their exposed portions, but purplish blue, with only a green tinge at the tips. The 

 blue spot (III the tliroat is larger than usual in any C. kingi. The female, differs 



