126 MNIOTILTID^. 



and Belize birds (which hardly differ in this respect), and lastly the two Veraguan 



specimens. 



From this it will be seen that a case for the separate distribution of these birds cannot 

 well be made out ; and as they do not occupy distinct areas, the differences pointed out 

 are not sufficiently stable to enable their bearers to be known by different names. 



With but few exceptions B. vieilloti has hitherto been found at no great distance 

 from the sea. Our own personal acquaintance with it is limited to two occasions : — 

 one, when we met with it on Half-moon Cay, one of the coral islands off the coast of 

 British Honduras ; and the other on the outskirts of the port of Punta Arenas in Costa 

 Eica. In habits the bird much resembles D. cestiva, and, indeed, is hardly to be distin- 

 guished from it when moving restlessly in search of its food. 



The records of the occurrence of the species inland are by Grayson, who observed it 

 near Guadalaxara, in Mexico ^, and by von Frantzius, who saw it in May near San Jos6 

 in Costa Eica. 



D. vieilloti is no doubt the continental representative of the Antillean J), petechia, 

 which, under certain slight modifications, is found in so many of the West-Indian islands, 

 and even in the Galapagos archipelago ; but from all these forms it is distinguishable 

 by its throat being chestnut as well as the head. Its head quarters is undoubtedly 

 Central America, as it only just penetrates into the southern continent. An allied 

 species is found in W^estern Ecuador, which is not separable, so far as we can see, from 

 the Galapagos bird, J), aureola, or, for that matter, from the Jamaican D. petechia itself. 



B. Cauda intus macula magna alba notata aut late alio marginata. 

 a. Aloe conspicue alio notatce ; remiges ad basin albi. 



3. Dendroeca cserulescens. 



Motacilla cmrulescens, Gm. Syst. Nat. i. p. 960 ^ 



Dendroica carulescens, Baird, Rev. Am. B. i. p. 186 ' ; Baird, Brew. & Ridgw. N. Am. B. i. p. 254' ; 



Gundl. Orn. Cub. p. 64"; Coues, B. Col. Vail. i. p. 241 \ 

 Motacilla canadensis, Linn. Syst. Nat. i. p. 336 (nee p. 334) °. 

 Dendroeca canadensis, Dresser, Ibis, 1865, p. 478''; Salv. Ibis, 1866, p. 205'. 

 Syvicola pannosa, Gosse, B. Jam. p. 162°. 

 Dendroeca, sp. inc., Salv. & Sel. Ibis, 1860, p. 273 ". 



c? supra sohistaceo-oaerulea, alls et cauda fusoo-nigris cseruleo limbatis, speculo alari albo, Cauda albo utrinque 

 notata; capitis lateribus, gula et hypochondriis nigerrimis ; abdomine medio niveo; rostro nigro, pedibus 

 coryUnis. Long, tota 4-7, ate 2-6, caudae 2, rostri a rictu 0-5, tarsi 0-7. (Desor. maris ex Washington 

 TJ. S., Smiths. Inst. no. 28286. Mus. nostr.) 



$ sordide fusca; aUs et cauda concoloribus, subtus medialiter dilutior, speculo alari albido sicut in mare 

 (Desor. femmae ex Coban, Guatemala. Mus. nostr.) 



Hab. Eastern States of North America from Canada southwards 3 s, Texas ^— Guate- 

 mala, Coban (6>. ;S'. & F. B. G.^ lO).— Greater Antilles, Cuba^ Jamaica \ &c. 



