ILLUSTRATIONS OF ORNITHOLOGY. 
PHYLLOSGOPUS TRI VIRGATUS. 
“ Sylvia trivirgata, Temm” — Verreaux MS. 
The genus Phylloscopus, of which three species inhabit the British 
Islands, attains its greatest development in continental India, where 
Mr. Blyth has discovered and described numerous species. Some 
of these, instead of being unicolorous on the upper parts, as in the 
majority of Phylloscopi , exhibit a yellowish streak on the crown, 
and thus lead us to the genus Regulus, which is distinguished by 
the vivid tint of its coronal feathers. The bird before us belongs 
to this aberrant division. It inhabits the Island of Java, from 
which we already possess another species of true Phylloscopus, 
P.javanicus (Horsf.) In plumage it greatly resembles the broader 
billed but closely allied Culicipetct bnvlcei of India. 
Middle of crown olive yellow, which occupies the inner webs of 
the feathers, the outer webs being deep fuscous, nearly black, 
with an olive tinge, forming a broad dark stripe on each side of 
the ciown. Between this and the eye is a superciliary streak 
of clear yellow ; a streak of fuscous passes through the eye ; the 
cheeks, thioat, and lower parts, are light yellow, with an olive 
tinge , back and wings yellowish olive ; remiges and rectrices fus- 
cous, maigined externally with yellowish olive; beak horn coloured; 
base of lower mandible pale ; legs brown. 
Total length, 4, beak to front, 4; to gape, 5; wing, 2.2; medial 
rectrices, i .'8; external, 1.6; tarsus, 7. — II . E. Strickland. 
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