DENDEGECA. 125 



of allied forms all related to B. petechia (Linn.) renders them undesirable as places of 

 abode to B. cestiva during the winter months. 



The habits of the species in North America are fully set forth by Brewer ^3 ; and the 

 vast number of references to its literature and synonymy are elaborated in Dr. Coues's 

 recent work 2*. 



2. Dendrceca vieilloti. 



Dendrceca vieilloti, Cassin, Pr. Ac. Phil. I860, p. 192 1 ; Salv. Ibis, 1864, p. 380 % 1866, p. 192 ' ; 



Baird, Rev. Am. B. i. p. 203 * ; Lawr. Ann. Lye. N. Y. ix. pp. 94 ', 200 ' ; Mem. Bost. Soe. 



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, Abli. naturw. Ver. z. Bremen, 1870, p. 329". 

 Rhimamphus ruficeps. Cab. J. f. Orn. 1860, p. 326 ". 

 Dendroica rnfigula, 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. cestivce similis, sed capite undique castaneo distinguenda. (Descr. exempli ex Tempate, Costa Eica. Mus. 

 nostr.) 



Mab. Mexico, Mazatlan'*^" and Guadalaxara^ {Grayson), Caucun, Yucatan [Br. S. 

 Cabot *), Sisal, Progreso and Celestin, Yucatan (Schotf, Gaumer) ; Beitish Hon- 

 duras, Belize {Dr. Berendf, Mus. Bost. Soc. N. H. ; Blancaneaux), Half-moon Cay 

 {0. S.'^^); Costa Eica {Br. Ellendorf^^), San Jose {v. Frantzius^), Tempate, Gulf 

 of Nicoya {Arc6 ^ ^) ; Panama ^, Veraguas {Arce). — Noethben Colombia ^ ^^ *. 



This species has been divided into two or three varieties by American authors, the 

 Western-Mexican and Yucatan bird bearing the name " var. bryanti," the Costa-Rica 

 and Panama bird " var. rufigula," 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. Eidgway 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. Eidgway ^ 

 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 Eica ; 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 



