1917.] NATURAL SCIENCES OF PHILADELPHIA. 203 



A NEW HUMMINGBIRD FROM COLOMBIA. 

 BY WITMER STONE. 



In a collection of birds from the Santa Marta region of Colombia, 

 recently received by the Academy from Mr. M. A. Carriker, there 

 are two specimens of a hummingbird which seem to belong to an 

 undescribed form. They are related to Lepidopyga cceruliigularis 

 Gould, but differ in having the whole under parts, except the under 

 tail coverts, glittering blue, while in that species the abdomen is 

 green, in sharp contrast to the blue of the throat and breast. 



Of the two described species which are usually synonymized with 

 L. cceruliigularis, Trochilus Duchaissingii Bourcier {Compt. Rend., 

 XXXII, p. 187) from "bois entre la Gorgone et Panama," is un- 

 doubtedly identical with that species. The other one, Thalicrania 

 Ccelina Bourcier {Rev. ZooL, 1856, p. 552), is described from the 

 "environs de Santa Marthe," and one would suppose from the 

 locality that it was likely to be the same form as that obtained by 

 Mr. Carriker. The description, however, seems to apply to a bird 

 much closer to Lepidopyga cceruliigularis Gould, as it says: "Gorge, 

 devant du cou, thorax d'un beau bleu brillant, verdissant sur les 

 cotes du cou. Abdomen vert bronze." 



In distinguishing it from Trochilus Duchaissingii [= L. cceruliigu- 

 laris], the describer says: "elle en differe par le dessus de la tete et du 

 €orps, terne bronze chez ce dernier, ainsi que par les formes des 

 rectrices et la coloration des mediaires, qui sont entierement cuivrees." 



Brabourne and Chubb, in their "List of the Birds of South 

 America," recognize both L. cceruliigularis and L. ccelina, and if 

 they are really distinct and if the type of L. ccelina really came from 

 Santa Marta, it would seem that it was the representative of L. 

 ■cceruliigularis in the coast region of the Santa Marta district. In 

 this case the blue-bellied bird obtained by Mr. Carriker at Punto 

 Caiman in the same general region must be specifically distinct. 

 If, on the other hand, the type of L. ccelina, shipped from Santa Marta, 

 was collected at some point more or less remote, in the mountains, 

 as is quite possible since the exact locality at which many of these 

 old types were obtained was not known, then both of them may be 

 better regarded as races of L. ccehdiigularis. Whether the latter 

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