The species occurs in Texas, Arizona, and Mexico. (33) =Lycæna hanno=, Stoll, Plate XXXII, Fig. 3, ♂, _under side_ (The Florida Blue). _Butterfly._--Larger than the preceding species, on the upper side resembling _L. isola_; but the blue of the male is not lilac, but bright purplish, and the female is much darker. On the under side a striking distinction is found in the absence on the fore wing of the postmedian band of large dark spots so conspicuous in _L. isola_. Expanse, .85 inch. _Early Stages._--We have no information as to these. The insect occurs in Florida and throughout the Antilles and Central America. (34) =Lycæna isophthalma=, Herrich-Schäffer, Plate XXXII, Fig. 4, ♂ (The Dwarf Blue). _Butterfly._--Light brown on the upper side in both sexes, with the outer margin of the hind wings set with a row of dark spots, which on the under side are defined by circlets of metallic scales. The under side is pale brown, profusely marked by light spots and short bands. Expanse, .75 inch. _Early Stages._--Up to this time we have learned very little concerning them. The species occurs in the Gulf States and the Antilles. (35) =Lycæna exilis=, Boisduval, Plate XXXII, Fig. 5, ♂ (The Pygmy Blue). _Butterfly._--On the upper side this, which is the smallest of North American butterflies, very closely resembles the foregoing species, but may be instantly distinguished by the white spot at the inner angle of the fore wing and the white fringes of the same wing near the apex. The hind wings on the under side are set with a marginal series of dark spots ringed about with metallic scales. Expanse, .65 inch. _Early Stages._--Unknown. The Pygmy is found in the Gulf States and throughout tropical America. (36) =Lycæna ammon=, Lucas, Plate XXXI, Fig. 31, ♀; Plate XXX, Fig. 45, ♀, _under side_ (The Indian River Blue). _Butterfly._--The male is brilliant lilac-blue on the upper side; the female shining violet-blue, with very dark and wide black borders on the fore wings and one or two conspicuous black eye-spots near the anal angle of the hind wings, each surmounted by a carmine crescent. The figure in Plate XXX gives a correct representation of the under side. Expanse, .95-1.10 inch. _Early Stages._--Unknown. This beautiful little insect is not uncommon in southern Florida, and also occurs in the Antilles and tropical America. (37) =Lycæna marina=, Reakirt, Plate XXXI, Fig. 32, ♀; Plate XXX, Fig. 27, ♀, _under side_ (The Marine Blue). _Butterfly._--The male, on the upper side, is pale dusky-lilac, the dark bands of the lower side appearing faintly on the upper side. The female is dark brown on the upper side, with the wings at the base shot with bright lilac-blue; the dark bands on the disk in this sex are prominent, especially on the fore wings. The under side of the wings is accurately depicted in Plate XXX and therefore requires no description. Expanse, 1.10 inch. _Early Stages._--Unknown.