Mr. P. L. Sclater on the Genus Chasiempis. 17 



II. — On the Muscicapine Genus Chasiempis. 

 By P. L. Sclater, M.A., Ph.D., F.R.S. 



(Plate I.) 



Among some specimens of birds which the authorities of the 

 Smithsonian Institution have kindly sent over for my exami- 

 nation are the two skins upon which Mr. Ridgway based 

 his Chasiempis sclatei'i (Proc. U. S. N. Mus. 1881, p. 337). 

 Having had the opportunity of comparing these skins with 

 the examples of Chasiempis in the British Museum, I am 

 enabled to offer a few remarks on this little-known type of 

 the family Muscicapidse. 



Latham was the first author who noticed this peculiar 

 Sandwich-Island form. In the second volume of his 'General 

 Synopsis ' (p. 33 1) is described the " Sandwich Flycatcher/' 

 from a specimen in the " collection of Sir Joseph Banks," 

 as follows : — 



" Length five inches and a half. Bill black, bristly at the 

 base, where it is yellowish ; forehead buff-coloured ; over 

 the eye a white line ; the upper parts of the body brown ; 

 wing-coverts edged with pale rust-colour ; greater quills 

 brown ; both of them tipped with dusky white ; tail brown ; 

 all the feathers, except the two middle ones, tipped with 

 white ; the chin is pale, marked with dusky streaks ; on each 

 side of the neck a mixture of white; breast rust-colour; 

 belly and vent yellowish white ; legs black. Inhabits the 

 Sandwich Islands." 



A little lower down, Latham gives the subjoined descrip- 

 tion of this Spotted-winged Flycatcher, which is generally 

 supposed to be the female of the same species : — 



" Bill black ; base of the under mandible yellow at the 

 edges ; the plumage on the upper parts of the body ferru- 

 ginous brown ; the head palest ; on each of the wing-coverts, 

 at the tip, is a round ferruginous white spot ; the rump fer- 

 ruginous ; quills dusky ; the underparts of the body pale 

 reddish brown, changing to reddish white on the bottom of 

 the belly ; vent the same, but the feathers tipped with still 



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