278 INSECTA. 



Here the internal margin of these wings is concave or plaited. 

 Vatilio proper. — P. Equites, Lin., 

 Where the inferior palpi are very short, scarcely reaching the 

 clypeus with their superior extremity, and their third joint is in- 

 distinct. 



The caterpillars, Avhen alarmed, protrvide from the superior part 

 of their neck a soft, forked horn, that usually diffuses a penetrating 

 and disagreeable odour. Their skin is naked. The chrysalis is 

 attached with a silken band, and exposed. 



The species of tliis subgenus are remarkable for their size and 

 varied colouring. They are more particularly abundant in the 

 tropical countries of both hemispheres. Those Avith red spots on the 

 breast form the division of the Equites Troes or Trojan Knights of 

 Linnaeus, Those which are destitute of these marks in that place, 

 he styles Achivi or Greeks. The inferior wings of several are pro- 

 longed into a sort of tail. Such is the 



P. machaon, Lin. ; P. grand-porte-queue, Godart, Hist. Nat. 

 des Lepid. de France, I, 1, 2. Wings yellow, spotted and 

 striped with black ; inferior wings prolonged into a tail and with 

 blue spots near the posterior margin, one of them ocelliform ; 

 some red on the internal angle; France. 



The caterpillar is green with black rings dotted with red. It 

 feeds on the leaves of the carrot, fennel, 8ic. 



Two other tailed Papilios are found in France, the P. poda- 

 lirius, Godart, Ibid., I, 1, 2; and the P. Alexanor *. 



Zelima, Fab. 

 This subgenus only differs from Papilio proper in tlie club of the 

 antennae, which is shorter and more rounded. 



I know two species, one from Senegal, the other from Gui- 

 nea, both of Avhich are in the splended collection of Count De- 

 jean, 



Parnassitjs, Lat. — Doritjs, Fab., 

 Where the inferior palpi evidently extend above the clypeus, taper 

 to a point, and are distinctly triarticulated. The terminal button of 

 their antennae is short, almost ovoid and straight. The females have 

 a kind of corneous boat-shaped sac at the posterior extremity of 

 their abdomen. 



The caterpillars also have a retractile tentaculum in the neck, like 

 those of the true Papilio, but the cocoon in which they become chry- 

 salides is formed of leaves connected by filaments of silk. 



The species are exclusively proper to the Alpine and sub- 

 alpine regions of Europe and the north of Asia. Such for in- 

 stance is the 



P. Apollo ; Papilio Apollo, L. ; Godart, Hist. Nat. des Lepid. 

 de France, II, B. ii, 1, White, spotted with black ; four ocel- 



* For the remaining species, see Godart, Ibid., and tlie Encye. Method., article 

 PapiUon, genus Papillon. See also, for European species, the excellent work of 

 Ochsenheimer, continued by M, Treitschke. 



