AGYRTRIA APICALIS. 



Black- tipped Emerald. 



Thaumatias apicalis, Gould, Intr. Trochil. 8vo, p. 154 (1861).— Mulsant, Hist. Nat. Ois.- 



Mouches, i. p. 252 (1874).— Elliot, Ibis, 1878, p. 51. 

 Agyrtria apicalis, Heine, Journ. fiir Orn. 1863, p. 184.— Elliot, Synopsis of the Humming. 



Birds, p. 207 (1878). 

 Agyrtria terpna, Heine, Journ. fiir Orn. 1863, p. 184. 



Mr. Elliot places this bird in close proximity to A.flumatUis, from which it differs in the colour of the tail 

 and throat. The latter is golden green as well as the breast, and the centre tail-feathers are green broadly 

 tipped with blue-black, the remainder being black tipped with white. The same gentleman has added A. terpna 

 of Heine as a synonym of A. apicalis, as he could not find any real points of specific distinction in the 

 description of the latter species. 



Mr. Gould describes the species as follows :— " Of about the same size as A. flumatilis, with an equally 

 lengthened bill ; the upper surface golden green ; the centre of the abdomen and under tail-coverts pure 

 white ; the four outer tail-feathers steel-black, margined with pure white at the tips. Total length '6\ inches, 

 bill 1, wing 2i tail li" 



[R. B. S.] 



AGYRTRIA MACULICAUDA. 



Guiana Emerald. 



Thaumatias macuUcaudits, Gould, Intr. Trochil. 8vo, p. 154 (1861). — Scl. & Salv. Nomencl. 



Av. Neotr. p. 92 (1873).— Mulsant, Hist. Nat. Ois.-Mouches, i. p. 250 (1874).— 



Elliot, Ibis, 1878, p. 51. 

 Agyrtria maculicauda, Heine, Journ. fiir Orn. 1863, p. 184. 



According to Mr. Elliot this species is closely allied to A, flumatilh and A. apicalis, but has the centre 



tail-feathers green, tipped with black, the next ones on each side being- bronzy green for two thirds of their 



length, the rest black ; the remainder are green at the base, then black, with a metallic green spot on the tip, 



which graduates into white on its upper edge. 



Its habitat is Guiana, and the following is a copy of the original description given by Mr, Gould: — 



''Adult. This is a very little species with a long thin bill ; its breast is green as in the others. Centre of 



the abdomen vt^hite ; under tail-coverts white, except in the centre, where they are dark brown; the two 



centre tail-feathers bronzy green, except at the extreme tip, which is greenish black, the next on each side 



bronze for half their length, then black; the three outer ones on each side bronzy green at base, then 



broadly zoned with black, next to which they are green, and lastly white. Total length 3i inches, bill |, 



wing 2, tail li" 



^ [R. B. S.] 



