CRYPTOLOPUA. 
199 
the last of the divisions in Tod us ; and we may 
therefore naturally expect to find the same colour 
continued to the group which succeeds, although 
that group is in the next circle, namely, that of 
Muscicapa. We already possess three species of 
Cryptolopha, and are acquainted with two or three 
others. In all these the upper plumage is olive- 
green, which, added to a prevalence of yellow on 
some part of their upper plumage, gives them all 
the appearance of being American Tyrannulce. 
But this, in truth, is merely an analogous resem- 
blance, — a disguise, as it were, in which nature has 
clothed them, while the structure of their wings 
and tarsi are in complete accordance with the rest 
of the Old World flycatchers. Such species as 
evince the nearest approximation to Lepturus have 
consequently the bill less broad, the tarsi longer, 
and the tail more narrowed and slender; while 
such, on the other hand, as advance towards 
the sub-genus Muscipeta, or rather, as we suspect, 
constitute the types of this sub-genus, have the bill 
broader, the rictal bristles long, thick set, and very 
stiff (as in Rhipidura), with the tarsi shorter, and 
the tail broader and even. There is nothing there- 
fore to associate these oriental flycatchers with the 
little tyrants of America, beyond their olive plumage; 
for they may be immediately recognized by that pri- 
mary character, — a short spurious quill-feather, — 
which, without a single exception, distinguishes 
the Old World flycatchers from those of the New. 
There is a very interesting species of Cryptolopha 
