INTRODUCTORY PAPERS ON LEPIDOPTERA. 93 
the hinder angle in a rounded concavity. The hind wings are 
rather long, with the hind margin dentated. The wings are rich 
brown or black, with orange oblique bands sloping outwards from 
the costa of the fore wings (always well-marked below), and 
sometimes produced on the hind wings. Sometimes the greater 
part of the wings, or only the centre of the hind wings, are 
suffused with rich blue above. The under side of the hind wings 
is dull brown, with a rather indistinct row of eyes; towards the 
tip of the fore wings is a more distinct eye, generally indicated 
by a white dot above. But all the species have a more or less 
triangular yellowish white or slightly silvery mark on the costa of 
the hind wings beneath. 
The type of the next genus, Myscelia Orsis, a common 
Brazilian butterfly, has a strong projection below the tip of the 
fore wings, and the hind wings are rather strongly dentated and 
nearly square, the strongest tooth being nearly opposite to the 
anal angle. The male is of a dark purplish blue, with the tip 
and hind margins black, shading here and there into dull reddish, 
a large oblong black patch below the cell of the fore wings, and 
the hind wings denuded of scales on the costa to below the cell. 
The basal half of the costa of the fore wings is narrowly reddish, 
and there are also some pale spots partly representing the 
markings of the female, which is black, the fore wings with a 
white basal streak, and two others running obliquely from the 
costa across the cell, beyond which is another row of spots 
running from the costa, and dividing opposite the projection on 
the hind margin, one row running to the hinder angle and another 
to the middle of the inner margin. Corresponding to these, are an 
inner white stripe and an outer row of spots on the hind wings, which 
are also marked with a bluish stripe towards the hind margin. 
The next genus, Catonephele, is closely allied to this; but it 
is specially remarkable for the great disparity between the sexes. 
The species vary in size from two inches to three and a half; 
the hind margins of the fore wings are oblique, and those of the 
hind wings rounded and more or less scalloped. The fore wings 
of some of the females, however, are deeply concave below the 
middle of the hind margin. Many of the species are very 
common in Tropical America. 
C. Obrinus is black, with a broad blue band across the fore 
wings, and a broad orange band across the hind wings. The 
