BIRDS FROM COSTA RICA—WETMORE 69 
RAMPHOCAENUS RUFIVENTRIS RUFIVENTRIS (Bonaparte) 
Scolopacinus rufiventris BONAPARIE, Proc. Zool. Soc. London, 1837 (June 14, 
1838), p. 119 (San José de Guatemala, Guatemala). 
In a thicket near the river below Liberia on November 18 I heard 
trilled, chattering notes, and after watching for several minutes 
finally collected a male of this bird. 
Family VIREONIDAE 
VIREO FLAVIFRONS Vieillot: Yellow-throated Vireo 
Vireo flavifrons ViEILLOT, Histoire naturelle des oiseaux de l’Amérique septen- 
trionale, vol. 1, 1807 (1808), p. 85, pl. 54 (eastern United States). 
Near Liberia I noted two on October 25 in woodland along the river 
and collected an adult male. November 17 I shot another adult male 
on the Rio Colorado. November 10 I saw one in the shade trees over 
the coffee at Hacienda Santa Maria. 
VIREO FLAVOVIRIDIS FLAVOVIRIDIS (Cassin) 
Vireosyluia flavoviridis Cassin, Proc. Acad. Nat. Sci. Philadelphia, vol. 5, 1851, 
p. 152 (Panam4 and San Juan de Nicaragua, Nicaragua). 
The only one of these vireos recorded was a male taken in brush 
near the Rio Colorado north of Liberia on October 23, 1940. This 
bird had the iris dull hair brown. The specimen has the brighter 
color marking the typical subspecies. ‘The supposed southern race 
insulanus In my opinion is not separable. Further, I consider this 
eroup as specifically distinct from Vireo olivaceus. 
VIREO PHILADELPHICUS (Cassin): Philadelphia Vireo 
Vireosylvia philadelphia Cassin, Proc. Acad. Nat. Sci. Philadelphia, vol. 5, June 30, 
1851, p. 153, pl. 10, fig. 2 (Philadelphia, Pa.). 
At the Hacienda Santa Maria on November 14 I shot two from a 
scattered flock of small birds moving through the shade trees in the 
coffee plantation above the house. On the Rio Colorado near Liberia 
on November 17 I collected another from a small flock all apparently 
of this species. All three specimens are females, two adult and one 
immature. It is always interesting to see the Philadelphia vireo, and 
I found it doubly so here in its southern wintering range. 
HYLOPHILUS OCHRACEICEPS OCHRACEICEPS P. L. Sclater 
Hylophilus ochraceiceps P. LL. ScuatEr, Proc. Zool. Soc. London, 1859 (Feb. 1860), 
p. 375 (Playa Vicente, Oaxaca). 
An adult male and an immature female of this vireo were taken on 
November 8, 1940, from a flock of little forest birds in the lower levels 
of the trees at Los Cuadros on Hacienda Santa Maria. On the three 
occasions on which I have seen this bird in life in Guatemala, in 
Veracruz, and here, I have each time taken a pair, these being the only 
