232 timeliidj:. 



the tail-fefithcrs, while tlic under tail-coverts arc more broadly barred, 

 and with white instead of fulvous, the bases beinjj li_<;ht fulvous. 



The Black-throated Wren is an inhabitant of Costa Ilica, and has 

 been doubtfully included in a list of birds obtained near Greytown, in 

 Nicaragua. 



18. Thryothorus felix. 



Thrvothorus felix, Sclater, P.Z S. 1859, p. 371 ; id. Cat. Amer. B. 



p." L>0 ; Later. Mem. Bod. Soc. N. H. ii. p. 268 (pt.) ; Scl. S( Salv. 



Xomencl. Av. Xeotr. p. 7 ; Salv. Sf Godin. Biol. Centr.-Amer., Aves, 



i. p. 03, tab. vii. lig. 1. 

 Pheugopedius felix. Bard, Bei-ieu- Amer. B. p. 136. 

 Troglodytes felix, Gray, Hand-l. B. i. p. 190, no. 2592. 



Adult. General colour above earthy brown, more rufous on the 

 head, and especially so on the forehead ; wing-coverts like the 

 back ; quills brown, externally rufescent brown, a little clearer 

 than the back ; upper tail-coverts brown, narrowly and distinctly 

 barred with blackish ; tail-feathers light brown, barred across 

 with dusky blackish bars, about 12 in number, with whitish spots 

 on the margins of the light bars in some of the feathers ; lores 

 and a ring round the eye white ; eyebrow, ear-coverts, and checks 

 white, streaked with black, the feathers being edged with Idack ; 

 sides of neck behind the ear-coverts also broadly streaked with black 

 and white ; throat white, shading off on the fore neck into light 

 ashy fulvous, which is also the colour of the centre of the breast and 

 abdomen ; sides of the body and thighs fawn-buff; under tail- 

 coverts dull white, barred with blackish; under wing-coverts and 

 axillaries light fawn-lniff, the edge of the wing white ; quills dusky 

 brown below, very pale rufous along the edge of the inner web. 

 Total length 5'5 inches, culmen 0-75, wing 2-3, tail 2-6, tarsus 0'S5. 

 (J/hs. Salvin and Godman.) 



Boucard's Wren is confined to Mexico, where it was discovered in 

 the State of Oaxaca, and 1ms since been met \^ith at Mazatlan. 



19. Thiyothorus lawrencii. 



Thrvothorus felix, /3. lawrencii, Bidf/tra;/, Bid!. Xutf. Om. Chth, 1878, 

 p! 10; Sniv. Ibis, 1878, p. 190; Grayson, Prcc. Bost. Soc. X. H. 

 xiv. p. 278. 



Thvvotliorus lawrencii, Salvin i^- Godman, Biol. Centr.-Amer., Aves, 

 i.*p. 93. 



Allied to Tliryothorvs felix , but differing in the under surface of 

 the body being nearly white, the fianks being very slightly tinged 

 with rufous, the eyebrows distinctly white, the cheeks white and 

 unspotted, and distinguished also by the bill being more slender and 

 curved. Total length 5*3 inches, bill from gape 0-95, wing 2-3, 

 tail 2-2, tarsus 0-9. {Salvin and Godman.) 



Lawrence's Wren replaces the foregoing species in the Trcs Marias 

 Islands, where it was discovered by the laic Colonel Grayson. The 

 description is translated from the Latin diagnosis made by Mr. 

 Salvin from the type in the Smithsonian Institution at Washington. 



