192 Mr. H. W. Bates on the Nymphalinee 
hind margin of the fore wing, found in all the other varieties, is 
here absent. Beneath, it differs considerably from its kindred 
varieties in the outer border of the hind wings, which, instead 
of having a row of pale lunules bordered by a lunulated dusky 
line, has simply a submarginal line of straight dusky streaks, 
and no pale lunules. 
12. Eresia Aveyrona,n.sp. (Pl. X. fig. 4.) 
Q. Similar in size and shape to Er. Eunice. Expanse 2" 2'", Unclear 
orange-tawny. Fore wing above with a dark-brown costal border, ter- 
minating beyond the middle, where it joins an oblique median belt of the 
same hue, whichis of nearly uniform breadth, and extends to the outer 
border, Apex of the wing broadly dark brown; outer border of the same 
hue, narrow. Between the median belt and apex the colour of the wing 
is slightly paler. Middle part of the hind margin occupied by a dark- 
brown stripe. Hind wing above with a basal stripe and a broadish outer 
border dark brown, the border towards the anal angle having an orange- 
tawny streak. Beneath: fore wing nearly the same as above, but paler, the 
apex having a whitish spot, through which, parallel to the outer margin, 
is a thin dusky line. Hind wing with a short basal streak, and following 
it a subcostal one, which joins at the apex a narrow brown outer border, 
which extends to the abdominal margin, and has a shining-white line 
along its centre. A line of dark streaks runs not quite parallel to and at 
a short distance from the outer border. Antenne black. Club beneath 
ochreous. 
At Aveyros, on the Tapajos: one example only. 
13. Eresia Nauplia, Linn.; Cram. 316. k. 
A yery common insect in the same situations as Eresia Eunice, 
namely, in thinned parts of the forest ; flying low, over bushes and 
shrubs. 
14. Eresia Clara (nob.)—Cram. 316 r.G. (as Nauplia, 3). 
This species has always been confounded with £. Nauplia; Cramer 
considering it as the ¢. I took both sexes of each in about equal 
numbers, and find the differences between the’two forms (well given 
in the figures of Cramer) quite constant. It is remarkable that the 
two sister species are always found in company, and, judging from 
the fact of their having been confounded, they appear to have always 
been received mingled together from Tropical America. An analogous 
instance of two closely allied species being constant companions is 
furnished by Dircenna Rheo and Epidero, of the family Heliconide ; 
this case is the more remarkable as the insects are not generally dis- 
