Vol. 33, pp. 85-88 December 30, 1920 



PROCEEDINGS 



OF TUB 



BIOLOGICAL SOCIETY OF WASHINGTON 



DESCRIPTIONS OF FIVE NEW SUBSPECIES OF 



CYORNIS. 



BY HARRY C. OBERHOLSER. 



The following new forms of the genus of Flycatchers com- 

 monly known as Cyornis Blyth are in the United States National 

 Museum collection. They were brought to light in an in- 

 vestigation of the forms of this genus, having in view a mono- 

 graph of the group, but as this has now been undertaken by 

 Mr. C. Boden Kloss, it seems advisable to publish preliminary 

 descriptions of these new forms. 



Cyornis rubeculoides chersonesites, subsp. nov. 



Chars, subsp. — Similar to Cyornis rubeculoides rubeculoides from Nepal, 

 but male darker above; more whitish (less rufous) on the posterior lower 

 parts; female darker and less rufescent (more grayish) above; throat 

 more deeply or brightly ochraceous. 



Description.— Type, adult male; No. 160623, U. S. Nat. Mus.; Trang, 

 Lower Siam, Malay Peninsula, February 15, 1897; Dr. W. L. Abbott. 

 Forehead and short superciliary stripe king's blue, but the posterior portion 

 of the superciliary stripe Venetian blue; pileum and cervix indigo blue; 

 remainder of upper parts dark tyrian blue, verging, on the rump and upper 

 tail-coverts, toward dark orient blue; tail brownish black, with edgings 

 of dark blue, between dark orient blue and dark tyrian blue ; wings chaetura 

 drab, with edgings of blue of the same shade as the back, but lesser coverts 

 between eaton blue and jay blue; nasal bristles and lores dull black; 

 sides of head and of neck like the cervix; chin, throat (all but middle line) 

 and sides of breast bluish black ; middle line of throat between ochraceous 

 buff and ochraceous orange; jugulum and upper breast between xanthine 

 orange and sudan brown; rest of lower parts white, the sides anteriorly 

 a little streaked with the color of the breast, posteriorly together with the 

 flanks, washed with buff; thighs dull black washed with deep blue; axillars 

 and inner under wing-coverts dull light buff, outer under wing-coverts 



17— Proc. Biol. Soc. Wash., Vol. 33, 1920. (85) 



