This species is subject to considerable variation in the size of the internal series of yellow spots, which is sometimes even entirely obliterated in the females, in which the yellow is much less brilliant, and the spots smaller than in the males. These varieties somewhat resemble Papilio Troilus of Linnæus, with which, indeed, Drury and Smith[21] confounded the insect here described. Godart and Boisduval have added to the confusion by their incorrect references to our author, the first of these writers giving figure 2 of this plate as alone representing P. Asterias, and figs. 3, 4, and 5, (which represent two distinct species) as P. Troilus, Linn. which species Drury has not figured; and both of these authors quoting figure 2, both under Troilus and Asterias, although Drury expressly states, that the specimens figured at 2 and 3, were reared by him, with many other individuals, from chrysalides, sent from America by his correspondent, who assured him that they proceeded from the same brood. The preparatory states of P. Asterias are figured by Abbot and Smith, and Boisduval. The larva feeds upon Umbelliferæ, especially the fennel (Anethum fæniculum, Linn.), and Daucus Carota, and is very similar to that of Pap. Machaon, which species appears to be replaced in America by P. Asterias, and which makes its appearance in the perfect state three times in the year. Abbot states, that one of the caterpillars assumed the chrysalis state on the 12th of July, and the imago appeared on the 20th. {23}PLATE XII. [Illustration] PAPILIO PARIS. Plate XII. fig. 1. 2. ORDER: Lepidoptera. SECTION: Diurna. FAMILY: Papilionidæ, _Leach_. GENUS. PAPILIO, _Auct_. PAPILIO PARIS. Alis nigris, aureo-viridi pulverulentis, posticis caudatis supra maculâ magnâ discoidali cyaneâ ocelloque purpureo; subtus lunulis septem rufis. (Expans. Alar. 4 unc.--4 unc. 9 lin.) SYN. Papilio (Equit. Troes.) Paris, _Linn. Syst. Nat._ 2. _p._ 745. _No._ 3. _Fab. Ent. Syst._ III. 1. _p._ 1. _No._ 1. _Cramer, pl._ 103. A. B. _Esper. Aus. Schmett. tab._ 2. _fig._ 1. _Boisduval, Hist. Nat. Lep._ 1. _p._ 208. HABITAT: China.