LYCAENIDAE: LYCAENIDI. 1829 



spot in the middle of the cell ; its outer limit is marked by a black line or bar and there 

 is a row, arcuate in the fore wing, sinuous in the hind wing, of tolerably large, round 

 black spots, one in each of the interspaces, crossing the middle of the outer half of 

 the wing ; all these spots are encircled with white; the outer edge is finely marked 

 with a black brown thread preceded by a similar white one ; the arcuate row of extra- 

 mesial spots of the fore wing Is subparallel to the outer border, the uppermost spot 

 in the lowest superior subcostal interspace retreating somewhat from it; on the hind 

 ■wings the spots of this series are usually more perfectly circular than the correspond- 

 ing spots of the fore wing, often slightly smaller than there, excepting that in the 

 medio-submedian interspace whicli is double or wlien blended transverse; the two 

 spots of the costo-subcostal and subcostal interspaces are rsraoved inward further from 

 the next portion of the series, which consists of astrongly arcuate row of four spots in 

 the next succeeding interspaces as far as the medio-submedian ; the spot in the latter 

 again approaches the margin, while the small spot below it again recedes from it; in 

 addition there is on the hind wings an entirely similar spot in the costo-subcostal inter- 

 space, above and a little outside of the spot In the centre of the cell. Expanse of wings 

 g , 26-36 mm. ; $ , 38 mm. 



The large size of the extra-mesial spots of the hind wings, where with their white 

 edging they completely fill the interspaces as far as the scaly covering of the nervules, 

 is one of the characteristic features of this species. 



The range of this silvery blue butterfly is still imperfectly known. It 

 certainly is found in the states bordering the Atlantic from the upper waters 

 of the Susquehanna to Georgia, probably following the Appalachians. 

 It also occurs beyond the Atlantic states, but only in the north, reaching 

 westward to Ohio, Michigan and Wisconsin. 



In Georgia, according to Abbot, it flies throughout March and occurs in 

 pine woods, flying very swiftly. In West Virginia it appears early in 

 April, according to Mr. Edwards, and flies throughout that month, as I 

 have good specimens taken there at the end of April. Edwards says it is 

 rare, "not more than half a dozen being seen in a season," and is usually 

 found "in the garden or about houses." Nothing more of its history is 

 known. 



RUSTICUS HiJBNER. 

 RUSTICUS STRIATUS. 



Lycaena striata Edw., Field and forest, iii : 88 (1877). 



Imago. "Male. Expands 1 inch. Upper side dull pruinose blue, the secondaries 

 of a gray shade ; the wings delicate, allowing much of the marking of under side to be 

 discovered above ; primaries edged by an illy defined, fuscous line, a little expanded 

 towards apex, secondaries by a clear, black line; fringes of primaries fuscous next to 

 the marginal edge, white outside, of secondaries pure white. Under side gray white; 

 both wings banded from base nearly to margin with pale fuscous ; on secondaries 

 these bands are macular ; on primaries nearly regular, but the bands do not pass the 

 lower branch of median; hind margins edged by a common series of pale fuscous, 

 crenated spots, each enclosing a small, concolored, rounded spot, except next anal 

 angle, where are two round, velvet black spots, the outer one largest; these are 

 faintly margined by yellow and their surfaces a little sprinkled with brilliant metallic 

 blue scales, mostly arranged along the edges. 



"Female. Expands .95 inch. The costal and hind margin and base of primaries pale 

 fuscous, the disk whitish, and a blue tint over basal area; on the disk appear four 

 or five spots caused by the transparency of the wing ; secondaries had the costal mar- 



