Alae supra ut in _M. Chalcedonte_ sed series macularum submarginalium in anticis rubra et marginalium in posticis flava rubro tincta. Series quarta in anticis bifida, fere tota rubra, tertia in posticis omnino rubra. Alae inferiores subtus ut in _M. Chalcedonte_ sed fascia flava prope radicem in maculas sex dissecta maculaque flava discalis puncto ejusdem coloris extus aucta. _Melitæa Quino_ may at once be distinguished by the entirely different and much gayer coloration of the upper side, which much more resembles that of _M. Anicia_ than _M. Chalcedon_. To the latter species it comes the nearest in the peculiar shape of the wings, so characteristically different in the two sexes. In _M. Anicia_ this difference exists but not to the same degree. The yellow part of the underside of the hindwings is much paler than in _M. Chalcedon_ and _M. Anicia_. The yellow radical band is dissolved into six distinct but nearly connected maculae. In _M. Chalcedon_ the band is not interrupted and only the sixth macula is separated, making part of the yellow coloration of the anal side of the wing. From _M. Anicia_ it differs besides, in the underside of the forewings being nearly all of a reddish-brown color with scarcely any indication of the markings of the upperside, closely resembling _M. Chalcedon_. From both species _M. Quino_ differs in the coloration of the club of the antenna. This species I received from Dr. Cooper, formerly of the State Geological Survey, who collected several specimens near San Diego. I have called it Quino in remembrance of the California Pioneer, Padre Quino, the first European that ever succeeded in erecting a permanent settlement in California, and at the same time contributed very considerably by his learned writings to a more exact knowledge of these then scarcely discovered regions. 4. _M. Anicia_, Doubleday. This species seems to be restricted to the eastern and more elevated part of the State. Most of my specimens are from Mariposa. 5. _M. nubigena_, Behr, n. sp. _M. Aniciae_ similis sed antennarum clava nigrescens, et subtus in alis posticis fasciae pallidae intermediae bipartitae pars exterior aurantiaca, ut fascia lunularum quae sequitur eam.