DESCRIPTIONS OF APPARENTLY NEW SOUTH 
AMERICAN BIRDS, WITH NOTES ON 
SOME LITTLE KNOWN SPECIES 
BY CHARLES B. CORY 
Since the publication of my last paper on South American birds,* 
further study of the collections secured by the members of the Museum’s 
expeditions in South America has brought to light a number of new 
forms which it seems advisable to describe at the present time, as the 
detailed report on the results of the expeditions will not be ready for 
publication for some months. 
Conopophaga lineata cearz subsp. nov. 
Type from Serra Baturité, Cear4, Brazil. Adult male, No. 47264, 
Field Museum of Natural History. Collected by R. H. Becker, July 18, 
1913. 
Approaches nearest to C. 1. lineata (Wied), but differs in having the 
crown more rufous brown, the crown being lighter and more rufous 
brown than the back; lores and a narrow frontal streak black; post- 
ocular pencil of elongated feathers entirely pure white, without any 
trace of grayish at the base; throat and breast orange brown, brighter 
than in lineata; middle of belly pure white; flanks and under tail coverts 
approaching raw sienna. 
Wing, 70; tarsus, 22 mm. (tail imperfect in type specimen). 
Thamnophilus doliatus dearborni Cory. 
More specimens have been received of this apparently well marked 
subspecies. Compared with specimens from Mérida (which I assume 
to represent typical T. d. nigrescens Lawr.), T. d. dearborni (from 
Encontrados, Zulia, Venez.) may be readily distinguished by the more 
heavily banded abdomen and flanks, heavier marked throat, etc. The 
female is also darker in coloration. 
Dysithamnus mentalis leucobronchialis subsp. nov. 
Type from near Lagoa Santa, Minas Geraes, Brazil. Male (not 
fully adult), No. 49118, Field Museum of Natural History. Collected 
by R. H. Becker, January 24, 1914. 
*Field Mus. Nat. Hist. Pub., Ornith. Series, Vol. I, No. 9, Aug. 7, 1915. 
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