HYLOPHILTIS. 



381 



(No. 22,374, % .) Wing considerably graduated ; 2d quill about equal to 

 10th ; 5th longest ; exposed portion of 1st less than half 3d, more than half 

 2d. Tail short, rather rounded ; feathers narrow. 



Above bright olive green ; whole top of head and nape clear pure ash gray, 

 in sharp contrast ; cheeks paler, whitish about eyes. Beneath white, with 

 a slight creamy tinge, purest on throat and belly ; the sides of breast and 

 flanks yellowish olive, lighter than the back, passing more into yellow on 

 crissum, and still purer yellow on inside of wings and axillars. Quills dusky 

 brown, edged externally with olive green, the outer primaries only with gray ; 

 quills edged internally with whitish. Tail feathers olive. Bill above dusky, 

 whitish below. Legs dusky 1 



(No. 22,374, % .) Total length, 3.75 ; wing, 2.10 ; tail, 1.80 ; difference of 

 feathers, .14 ; difference of 10th and longest quills, .34 ; exposed portion of 1st 

 primary, .71, of 2d, 1.35, of longest (5th) (measured from exposed base of 

 1st primary), 1.62; length of bill from forehead, .56, from nostril, .32, along 

 gape, .63 ; tarsus, .64 ; middle toe and claw, .43, claw alone, .16 ; hind toe and 

 claw, .36, claw alone, .20. 



The loral region and a narrow ring around the eye are grayish- 

 white, as is to a less extent the space below the eye. 



This species is almost certainly the Pachysylma decurtata of 

 Bonaparte. 



Locality. 



Mexico (Cordova?) 

 Guatemala. 



When 

 Collected. 



Eeceived from 



Verreaux. 



G. N. Lawrence. 



Cab. Lawrence. 



Collected by 



Hyloptailus pusillus. 



Hylophilus pusillus, Lawrence, Ann. N. Y. Lye. VII, 1861, 323 (Panama); 

 VIII, 1865, 180 (Greytown, Nic). 



Hah. Isthmus Panama, to southeastern Nicaragua. 



Very similar to decurtatus, but smaller ; ash of head not extending as far 

 back over the nape, and slightly mixed with olive ; less distinct on side of 

 neck ; tail beneath more olive. Olive of sides less in amount, and more 

 yellow. Back more yellow. "Iris brown." Carmiol. 



(No. 400, Panama.) Total length, 3.80 ; wing, 2.05 ; tail, 1.60 ; difference 

 of 10th and longest primaries, .27 ; exposed portion of 1st primary, .70, of 2d 

 1.32, of longest (5th) (measured from exposed base of 1st primary), 1.60; 

 length of bill from forehead, .60, from nostril, .34, along gape, .64 ; tarsus, .60. 



(No. 34,672, % , Costa Rica.) Total length, 3.7p ; wing, 1.85 ; tail, 1.40 ; dif- 

 ference of 10th and longest primary, .16 ; exposed portion of 1st primary, .62, 

 of 2d, 1.12, of longest (5th) (measured from exposed base of 1st primary) 



