284 INSECTA. 



ricolce, and Fabricius — Entom. Syst. — in a homonymous section of 

 his Hesperice. They form the genus Argus of M. de Lamarck. Fa- 

 bricius ultimately — Syst, Gloss. — divided it into several genera, the 

 characters of which demand revision. 



Sometimes the antennae terminate, as usual, in a solid globullform, 

 or clavate inflation. 



In some, or at least their males, the two anterior legs are much 

 shorter than the others. They compose the subgenus 



Erycina, Lat., 

 And are peculiar to America *, 



In the others all the legs are alike in both sexes. 



Myrina, Fab. 



The Myrinse are distinguished from the following subgenera by 

 the remarkable elongation and projection of their inferior palpi f. 



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, Hlibn., LX, 292—294; Argus 

 bleu, Geoff. ; Godart, Hist. Nat. des Lepid., &c., I, ii, sect. 3. 

 Superior surface of the wings of the male azure blue, changing 

 to a delicate violet, with a small black streak along the pos- 

 terior 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 in- 

 ferior surface of the wings is nearly the same in the two sexes ; 

 it is grey, with a range of fulvous spots enclosed between two 

 lines of black points and streaks near the posterior margin; we 

 may also observe some black points margined with Avhite. 



Its caterpillar lives on the Onobrychys, Broom, &c. Its 

 colours are various |. 

 Other Lepidoptera of the same division present antennae of a truly 

 insulated form. Those of one of the sexes of the Barbicornis, Go- 

 dart, are setaceous and plumous§. Those of the Zephyrius, Dalm., 

 are terminated by ten or twelve globular joints separated like the 

 beads of a rosary |j. 



* Encyc. Method., article Papillon, genus Erycine. 



-f* Ibid. Fabricius has established several other genera in this division, which I 

 have not yet sufficiently examined. Certain species from South America resemble 

 Pyrales in their superior wings, ■which are arcuated exteriorly at base. The club 

 of the antennae also presents various modifications which may serve as a ground of 

 division ; but we should have a great number of species, and be particidarly well 

 acquainted with their metamorphoses. 



X For the other species indigenous to France, see Lat., Nouv. Diet. d'Hist. Nat., 

 XVII., p. 79, Pap. plcUiens; Godart, Hist. Nat. des Limpid, de France, his Tableau 

 M^thodique, accompanying that work ; and Encyc. Method., article Papillon. 



§ Encyc. Method., Insect., IX, p. 705, a genus perhaps established on false antennae. 



II Dalm., Anal. Etom., 102, 



