GENUS. HESPERIA, _Latr. Godart_. Battus, p. _Scop._ Papilio (Pl. ruric),
_Linn._
HESPERIA ARCAS. Alis nigricantibus immaculatis, margine integro, anticis
subtùs margine interno dilutiore maculâ parvâ unicâ albâ. (Expans. Alar.
1 unc. 9 lin.)
SYN. Papilio (Pleb. ruric.) Arcas, _Drury. App. v._ 2.
Papilio (Pl. urb.) Philemon, _Fabr. Syst. Ent. p._ 534. _No._ 392. _Ent.
Syst._ III. 1. _p._ 346. _No._ 314.
Hesperia Ph. _Latr. God. Enc. Méth._ ix. _p._ 788.
Papilio Flyas, _Cram. pl._ 328. E.
HABITAT: St. Christopher's.
_Upper Side._ Thorax and abdomen black. Wings very dark brownish black,
immaculate. Margins entire.
_Under Side._ Legs, breast, and abdomen dark brown, but rather lighter
than on the upper side, immaculate, except a small white spot on the
anterior, placed near the anterior edge towards the tip.
{37}PLATE XX.
[Illustration]