NEORX^TOPIS. 13 



marked by two large diagonal light patches, whose interior edges are well defined, 

 but whose exterior are powdered at their confluence with the darker parts; one 

 of these patches crosses the subcostal interspaces at a little distance beyond the 

 cell, and reaches from the subcostal to the median nervure; the other crosses 

 the middle of the outer half of the cell and covers a great part of the basal half 

 of the lower median interspace; while a third roundish patch, united with it, 

 occurs near the middle of the medio-submedian interspace. The two diagonal 

 patches have their inner distinct edges nearly parallel and straight, following lines 

 which run at nearly right angles to the costal margin ; in this respect they agree 

 with the diagonal disposition of markings upon the upper and under surface of 

 some species of Zophoessa (PL II, figs. 3, 11) and Lethe (PL II, fig. 9), while the 

 nature of the broad patches themselves may best be compared to such masses of 

 color as we see in Neorina Lowii (PL II, fig. 13) and some other species; the 

 marginal markings of the hind wings and the submarginal spots are common to 

 very many Oreades, but the nature and disposition of those of I^eorinopis and the 

 disparity of their character, on the two wings are best seen on a comparison with 

 the types we have already alluded to, and which are represented on the plates. 

 The small round pale spots accompanying larger dark ones on the fore wing may 

 be seen in Neorina Lowii, though the relation of the two is different from what we 

 see in J^eorinopis, while the greater importance of the ocellus in the lower median 

 interspace of the hind wings finds an exaggerated counterpart in Neorina Lowii. 

 In general, the design of the fore wings approaches that of Neorina Lowii more 

 nearly than that of the upper surface of any other butterfly I have seen, although 

 there is a distant resemblance to the markings of Antirrha3a and Anchiphlebia, as 

 Butler has remarked, as well as toward certain species of Zojjhoessa. The mark- 

 ings of the upper and under surface of butterflies have nearly always some and 

 often a close relation to each other, and therefore we may reasonably look at the 

 under surface of living insects to find the nearest counterpart to our fossil; in this 

 respect the under surface of Lethe Dyrta (PL II, fig. 9) may well be studied, where 

 in a lighter submarginal band we find a series o& spots, in the principal interspaces, 

 far from the border; these are ocellatcd instead of double as in Keorinopis; there 



MEMOIRS A. A. A. S. 4 



