DENDRG@CA. 125 
of allied forms all related to D. petechia (Linn.) renders them undesirable as places of 
abode to D. estiva during the winter months. 
The habits of the species in North America are fully set forth by Brewer ?*; and the 
vast number of references to its literature and synonymy are elaborated in Dr. Coues’s 
recent work *4. 
2. Dendreca vieilloti. 
Dendreca vieilloti, Cassin, Pr. Ac. Phil. 1860, p. 1921; Salv. Ibis, 1864, p. 380 *, 1866, p. 192°; 
Baird, Rev. Am. B. i. p. 203*; Lawr. Ann. Lyc. N. Y. ix. pp. 94°, 200°; Mem. Bost. Soc. 
N. H. ii. p. 270"; v. Frantzius, J. f. Orn. 1869, p. 293°; Baird, Brew. & Ridgw. N. Am. 
B. i. p. 217°. 
Sylvicola vieilloti, Finsch, Abh. naturw. Ver. z. Bremen, 1870, p. 329”. 
Rhimamphus ruficeps, Cab. J. f. Orn. 1860, p. 826". 
Dendroica rufigula, Baird, Rev. Am. B. i. p. 204". 
Dendroica vieilloti, var. rufigula, Baird, Brew. & Ridgw. N. Am. B.i. p. 217. 
Dendroica vieilloti, var. bryanti, Ridgw. Am. Nat. vii. p. 606"; Baird, Brew. & Ridgw. N. Am. B. 
i. p. 218”. 
D. estive similis, sed capite undique castaneo distinguenda. (Descr. exempli ex Tempate, Costa Rica. Mus. 
nostr.) 
' Hab. Muxtco, Mazatlan+!° and Guadalaxara’ (Grayson), Caucun, Yucatan (Dr. 8. 
Cabot *), Sisal, Progreso and Celestin, Yucatan (Schott, Gawmer); Britisa Hon- 
puras, Belize (Dr. Berendt, Mus. Bost. Soc. N. H.; Blancaneaux), Walf-moon Cay 
(O. 8.23); Costa Rica (Dr. Ellendorf'"), San José (v. Frantzius*), Tempate, Gulf 
of Nicoya (Arcé? 4); Panama1, Veraguas (Arcé).—NortHEern CoLomsia } 114, 
This species has been divided into two or three varieties by American authors, the 
Western-Mexican and Yucatan bird bearing the name “var. bryant,” the Costa-Rica 
and Panama bird “var. rujigula,” the original name of vieilloti being restricted to the 
bird of Northern Colombia. The bird is by no means a common one; and it has taken 
us some years to get together sufficient specimens to enable us to form any opinion as to 
the distinctness or otherwise of the races that have been set up. So far as we can see, the 
views of Mr. Ridgway and Prof. Baird are borne out in the main; but some specimens we 
have are so strictly intermediate in the characters compared that we are obliged to treat 
our specimens as belonging to one somewhat variable species. According to Mr. Ridgway? 
the strongly pronounced streaks on the flanks of the southern birds is one feature which 
distinguishes them from their northern representatives; but of five adult birds in our 
possession that which has fewest streaks is from Northern Yucatan; next comes one 
from the Gulf of Nicoya, Costa Rica; next a bird from the coast of Belize, and lastly 
two birds from Veraguas. As regards the extension of the chestnut colour of the throat, 
the Yucatan bird has the best-defined and most restricted mark ; then come the Nicoya 
