_Butterfly._--The insect on the upper side closely resembles the preceding species in both sexes. On the under side it may be at once distinguished from the following species by the absence on the margin of the hind wings of the fine black terminal line, and by having only one, not two rows of submarginal black spots. There are other marked and striking differences, and the merging of _L. dædalus_, Behr, with this species, which has been advocated by some recent writers, is no doubt due to their lack of sufficient and accurately identified material. Expanse, 1.35 inch. _Early Stages._--Unknown. This species, which is not common, is found in southern California. (7) =Lycæna dædalus=, Behr, Plate XXXI, Fig. 11, ♂; Fig. 12, ♀; Plate XXX, Fig. 28, ♀, _under side_ (Behr's Blue). _Butterfly._--The wings of the male on the upper side are deep lustrous blue, with darker borders and white fringes. The wings of the female are brown, margined with reddish. The name oechaja was applied to this sex by Dr. Behr, before it was known to be the female of his _L. doedalus_. Expanse, 1.12 inch. _Early Stages._--These have not yet been studied. _Dædalus_ is common in southern California. (8) =Lycæna sæpiolus=, Boisduval, Plate XXXI, Fig. 15, ♂; Fig. 16, ♀ (The Greenish Blue). _Butterfly._--The male on the upper side has the wings blue, shot in certain lights with brilliant green. The female on the same side is dusky, with greenish-blue scales at the bases of the wings, and often with reddish markings on the outer margin of the hind wings. On the under side the wings are gray or pale wood-brown, with greenish-blue at their base and a profusion of small black spots margined with white. Now and then the black spots are lost, the white margins spreading inwardly and usurping the place of the black. Expanse, .95-1.10 inch. _Early Stages._--These await further study. The species ranges from British Columbia to Colorado. (9) =Lycæna pheres=, Boisduval, Plate XXX, Fig. 37, ♂; Fig. 42, ♀, _under side_ (Pheres). _Butterfly._--The male is pale shining blue above, with dusky borders. The female is dusky, with a little blue at the base of the wings on the same side. Below, the spots on the fore wings are strongly defined; on the hind wings they are white on a pale stone-gray ground. Expanse, 1.20 inch. _Early Stages._--We know no more of these than we do of those of the preceding species. _Pheres_ has nearly the same range as _soepiolus._ (10) =Lycæna xerxes=, Boisduval, Plate XXX, Fig. 43, ♂, _under side_ (Xerxes). _Butterfly._--The wings in both sexes are dusky above, shot with blue, more widely in the male than in the female. On the under side the wings are dark stone-color, with all the spots on both wings white, very rarely slightly pupiled with blackish. Expanse, 1.25 inch. _Early Stages._--Unknown. The species is found in central California.