Birds of the Island oj Formosa. G49 



^IaNTHIA GOODFELLOWr, sp. n. (PL XIV.) 



Adult male. Crown and nape dull olive ; lores and ear- 

 coverts hlackisli, sometimes washed with hlackish-slate ; 

 a wide white superciliary band commencing above the lores 

 and extending to the occiput; upper parts dark slate-grey ; 

 chin and throat pale buff; chest and breast darker buff 

 tinged with olive, especially on the sides of the body, flanks, 

 and under tail-coverts ; middle of the lower breast and beliy 

 white ; wings dark slate-black, except tlie outer webs of the 

 primaries and the outer wing-coverts, which are edged with 

 rufous-olive ; tail dark slate-black. Iris brown ; bill black ; 

 feet browu. Total lengtli 140 mm. ; wing 7G ; tail 63 ; 

 tarsns 30. 



Adult female. Much like the female of I. Johnstoniee, which 

 it resembles on the upper surface ; but the tail is brown 

 washed with olive instead of blackish, the chest and breast 

 are brighter and of a more buft'-colour, and the under tail- 

 coverts are buft' instead of pure white. This last character, 

 as well as the colour of the tail, serve to distinguish the 

 females of the two species at a glance *. Wing 71 mm.; 

 tail 55 ; tarsus 30. 



Mr. Goodfellow has supplied me with the following field- 

 notes on these two species of lanthia. Both were found 

 together, and he was at one tim_e under the impression that 

 the males of /. goodfellowi represented the immature male 

 plumage of I. johnstonia>. 



" Both species of lanthia are almost entirely ground-1)irds 

 frequenting the forest trails and fallen tree-trunks, and are 

 of solitary habits. Not until the latter part of IMarch did I 

 see two of these birds together, when they were beginning to 

 nest. They seem to have the same pugnacious character as 

 our English Robin. Two cocks of / johnstonice allowed me 

 to approach within a yard of them when engaged in battle, 

 and judging by the amount of feathers they left behind, one 

 or both must have been severely punished. Although both 



■ * In the plate o^ I. johnstonice this character of the while under tail- 

 coverts has been lost sight of, though it is mentioned in the description. 



