[BE] In this case he counts from the tip of the wing, in reverse order. EXPLANATION OF THE PLATES. [My best thanks are due to my courteous friend Mr. Auguste Sallé, for his kind agency in securing an artist for the engraving of these plates. Owing, however, to the distance at which the work was done, a few errors have unavoidably occurred, which, to prevent misapprehension, are mentioned below.] Plate I. Fig. 1. _Eugonia atava._ Copied from Heer, Insekt. Tert. Œning., ii, pl. xiv, fig. 8 (1/1). “ 2. _Lethites Reynesii._ Drawn by S. H. Scudder (1/1). “ 3. _Eugonia atava._ Copied from Charpentier, Nov. Act. Leop.-Carol., xx, pl. xxii, fig. 4 (1/1). “ 4. _Eugonia j.-album._ Neuration of fore wing; drawn by S. H. Scudder (1/1). The second superior subcostal nervule is carried too far toward the tip of the wing. “ 5. _Lethites Reynesii._ Fore wing; drawn by S. H. Scudder (2/1). “ 6. _Eugonia j.-album._ Markings of the upper surface of the fore wing; drawn by S. H. Scudder (1/1). “ 7. _Eugonia atava._ Neuration of tip of fore wing (2/1); copied from Heer; Insekt. Tert. Œning., ii, pl. xiv, fig. 3a. “ 8. _Neorinopis sepulta._ Markings of the upper surface of the two wings, restored; drawn by S. H. Scudder (2/1). The drawing represents the general effect of the fore wing as darker than the hind wing, and in so far is inaccurate. “ 9. _The same._ Neuration of the two wings, separated; drawn by S. H. Scudder (2/1). “ 10. _The same._ Neuration of the two wings, as seen in the fossil; drawn by S. H. Scudder (2/1). The engraver has unfortunately made the lines of the hind wing the heavier, as if it lay uppermost; they should have been the lighter. “ 11. _The same._ Right hind leg; drawn by S. H. Scudder (2/1). “ 12. _The same._ Left hind leg; drawn by S. H. Scudder (2/1). “ 13. _The same._ Drawn by S. H. Scudder (1/1). The spot of the medio-submedian interspace of the fore wings has not been well rendered by the engraver. “ 14. _The same._ Copied from Lefebvre, Ann. Soc. Ent. France [2], ix, pl. iii, II, fig. A (1/1). “ 15. _The same._ Copied from the same, fig. C (1/1). “ 16. _The same._ Copied from the same, fig. B (1/1). “ 17. _The same._ Copied from Boisduval, Ann. Soc. Ent. Fr., ix, pl. 8 (1/1). Plate II. Fig. 1. _Zophoessa Sura._ Neuration of the wings; drawn by G. Willis (1/1). “ 2. _Mylothrites Pluto._ Copied from Heer, Insekt. Tert. Œning., ii, pl. xiv, fig. 4 (1/1). “ 3. _Zophoessa Sura._ Markings of the upper surface of the wings; drawn by G. Willis (1/1). “ 4. _Delias Pasithoe._ Neuration of the wings; drawn by G. Willis (1/1).