LEPIDOPTERA. 185 
In the others all the legs are alike in both sexes. 
Myrna, Fab. 
The Myrinz are distinguished from the following subgenera by 
the remarkable elongation and projection of their inferior palpi(1). 
Those species in which these organs do not extend considerably 
beyond the clypeus form the subgenus 
PoLYOMMATUS, 
So called because the wings of most of them are marked with 
small ocellated spots. 
Several species have been collectively designated by the name of | 
Petits porte-queue. The most common!in the environs of Paris 
is the 
P. Alexis; Papilio Alexis, Hibn., LX, 292—294; Argus bleu, 
Geoff.; Godart, Hist. Nat. des Lépid., &c., I, ii, sect. 3. Su- 
perior surface of the wings of the male azure blue, changing to 
a delicate violet, with a small black streak along the posterior 
margin, and a very white fringe; that of the female, brown, with 
a range of fulvous spots near the posterior margin, and a black 
line on the middle of the superior ones. The inferior surface 
of the wings is nearly the same in the two sexes; it is grey, with 
a range of fulyous spots enclosed between two lines of black 
points and streaks near the posterior margin; we may also ob- 
serve some black points margined with white. 
Its caterpillar lives on the Onobrychys, Broom, &c. Its 
colours are various(2). 
Other Lepidoptera of the same division present antennz of a truly 
insulated form. Those of one of the sexes of the Barsicornis, Go- 
(1) Ibid. Fabricius has established several other genera in this division, which 
I have not yet sufficiently examined. Certainspecies from South America resem- 
‘ble Pyrales in their superior wings, which are arcuated exteriorly at base. The 
club of the antenne also presents various modifications which may serve as a 
ground of division; but we should have a great number of species, and be parti- 
cularly well acquainted with their metamorphoses. 
(2) For the other species indigenous to France, see Lat., Nouv. Dict. d’Hist, 
Nat., XVII, p. 79, Pap. plébévens; Godart, Hist. Nat. des Lépid. de France, his 
Tableau Méthodique, accompanying that work; and Encyc. Méthod., article Pa- 
pillon. : 
Vou. IV.—Y 
