THE BIUDS OF MONGOLIA ETC. 301 



157. Carpodacus davidianus, Milne-Edw. 



Nouv. Arch, du Museum, i. (1865) pis. ii. & iii. 



This species, closely allied to C. rhodochrous, Vig., is tolerably common 

 in S.E. Mongolia, Ala-shan, and Kan-su, and breeds in the alpine regions 

 and wooded districts. Late in April we often met with them on migration 

 through Kan-su ; and in August they were observed, most likely migrating, 

 in the Hoang-ho valley. 



158. Carpodacus du^ius, n. sp. (Plate LIV. v.) 



thurcB simillimus. Mas abdomine medio albo ; genis totis roseis ; vitta superciliari argentea, 

 postice candidissima. 



Fem. uropygio ochraceo, fusco striate ; vitta superciliari antice ochracea, postice 

 alba. 



Measurements : — 











Lengtb. 



Width. 



Wing. 



Tail. 



Gape. 



Tarsus. 



in. in. 



in. in. 



in. in. 



in. in. 



in. in. 



in. in. 



<? 6-7 



11-7-12 



3-27-3-36 



3-10-3-15 



0-50-0-52 



0-82-0-87 



6 6-8-7-1 



11-7-12 



3-13-2-24 



2-87-3-1 



0-49-0-51 



0-82-0-86 



The 4th quill is the longest one ; 3 = 2, being very little shorter ; 

 5>3; 1<6. Upper mandible black, lower mandible light horn-colour; 

 tarsus same colour ; iris brown. 



The present species very closely resembles C. thura, Bp., but differs in the 

 following respects : (^) the whole cheek is crimson, whilst the upper part 

 of the cheek of C. thura is brown ; (J) the centre of the stomach is dirty 

 white, and not light crimson as is the case with C. thura ; (c) the silvery 

 rose-coloured eyebrows of C. dubius become quite white on the neck, whilst 

 those of (7. thura are light crimson throughout. 



The female of the present species has an ochre rump and eyebrows ; 

 whilst in the figure of C. thura^ P. Z. S. 1855, pi. cxiv., the rump is made 



