The _black_ markings on the upper side of this butterfly closely approach those of the last two species, but the interstices, instead of being filled up with a _uniform fulvous tint_, as in those, are "coloured in" with _several distinct shades_, some with _pale tawny yellow_, others with _deep orange brown_. This latter tint forms a band parallel {138} to the outer margin of each wing, the band on the front wings having a row of pale spots in it; that on the hind wings a row of black spots. _Beneath_, the upper wing has an appearance of the markings having been "smudged" together, and a shining surface, as if it had been greased, whence the common name of the insect; the hinder wings are like those of the two last, yellowish, banded with brownish orange, the outer band of which bears a _series of black spots each surrounded by a pale yellowish ring_. The _front_ edge of the front wing is slightly _concave_ in its outline, about the middle, whereas it is _convex_ in _Cinxia_ and _Athalia_. The _caterpillar_ is black, with reddish brown legs. It is gregarious, feeding under protection of a web upon the leaves of plantain, devils-bit scabious, and some other plants. The _chrysalis_ is drabbish, with darker spots, and is said to suspend itself by the tail from the top of a tent-like structure made of blades of grass spun together at the top. The _butterfly_ appears in June (sometimes a little earlier or later), and frequents marshy meadows, moist woods, &c., but is a very local insect, abounding most in the south. The specimens, however, that I have seen from the north, are much larger, brighter, and more distinctly marked than the "southerners." The nearest localities to London are, Hornsey, and Copthall Wood at the top of Muswell Hill; West Wickham Wood, and {139} High-Beech (Epping). It is also found near Brighton (plentifully); Carlisle; Durham; Burton-on-Trent; York; Haverfordwest, S. W.; Cardiff, S. W.; Weston-super-Mare; Bristol; and a great number of other places distributed throughout the country. In Ireland at Ardrahan, co. Galway. Rare in Scotland. * * * * * THE DUKE OF BURGUNDY FRITILLARY. (_Nemeobius Lucina._) (Plate XI. fig. 5.) Though this little insect bears the name of _Fritillary_, at the end of its lengthy and important title, it really belongs to a family widely differing from that of any of the true Fritillaries previously described, and it only shared their name on account of its similarity in colour and markings. The _caterpillar_ (Plate I. fig. 8), instead of being long and thorny like those of the true Fritillaries, is _short, thick, and wood-louse shaped_. Its colour is reddish brown, with tufts of hair of the same colour. It feeds on the primrose. The _chrysalis_ differs from that of the true Fritillaries as much as the caterpillar does, being of the form, and suspended in the manner, shown at fig. 25, Plate I.