( 695 ) 



often somewhat washed with red, reminding one of the coi'resi)onding red line of 

 r. asius. 



The female is dichromatic. 



a'. ?-f. /^/«7o/a«s Boisd. (1836) is similar to the male, differing especially in 

 the underside being paler. The vestige of a pale postdisoal band on the nnder- 

 surface of the forewing is on the whole more distinctlj' marked than in the male. 



b'. ?-f. nii/er Eimer (1889) (=i/el/cis Fruhst., I.e.) has lost all the pale bands, 

 the row of snbmarginal spots being however more or less distinct. The red 

 markings of the hindwing are also preserved. The black surface of the wings has 

 not been attained by a widening of the black bands, but by the pale bands being 

 washed over with black, these bands remaining as faint shadows. It is the same 

 development which we observe in the African P. illi/ris and kirbi/i, and the North 

 American P. glaucus glaucus ¥ -f. glaucus. 



Hah. of P. philolaus : Mexico to Nicaragna and Honduras. 



In the Tring Mnsenm 55 cJcJ, 7 ? ?, from: Sangolica, June 1897, Espinal, 

 June 1896, Vera Cruz (W. Schaus) ; Guerrero (0. T. Baron) ; Guatemala (Salvin); 

 San Pedro Sula, Honduras. 



Men^tries, when describing and figuring this species, I.e., gave North America 

 as the country where Motschoulsky had obtained the specimens, and since then 

 several authors (Felder, Kirby, Eimer) have included " Amer. Sept." in the range 

 of the species. However, the sjjecies does not occur north of Mexico. In the list 

 of 1857 Men^tri6s correctly gave Mexico as habitat. 



143. Papilio xanticles Bates (1863). 



Papilio xaiiticlc.'i Bates, Proc. Zool. Soe. Land. p. 241. n. 1. t. 29. fig. 3 (1863) (Panama) ; Pelder, 

 Verli. Zool. Bat. Ges. Wien xiv. p. 302. n. 1<J9 (1861) ("Guatemala," false); Kirby, Cat. 

 Diurn. Lei>. p. 557. n. 265 (1871) (Panama) ; Oberth., El. d'Eitl. iv. p. 67. u. 186 (1880) 

 (Panama); Godm. & Salv., Trans. Eid. Soc. Loud. p. 126. n. 234 (1880) (Manaure, .Sta. Marta); 

 Eimer, Artb. VerwamUscli. Schmett. p. 178. fig. U (1889) ; Godm. & Salv., Biol. CtiUr. Ainer., 

 Rhop. p. 221. n. 50. t. 68. fig. 10. ? , 11. cJ (1890) (Lion Hill, Panama ; Colombia). 



Papilio plaesiolaus Staudinger, Emt. Tagf. i. p. 17 (1884) (Sta. Martha) ; Eimer, he. p. 182 (1889) 

 (var. of arcf.'iilaii.^, errore). 



<S ? . Pale bands of upperside of wings huffish straw-yellow ; the cell-bands 

 of forewing rather wider than in P. philolaus, sixth pale band extending to R- 

 where it joins the discal band, the latter continued costad to S(/'', the single spot 

 SC" — SC* of P. philolaus being replaced in P. xanticles by a band which is con- 

 tinuous with the broad discal band, being the direct ])rolongation of the same. 



Black subbasal band of hindwing much thinner than in P. philolaus ; black median 

 band widely interrupted ; red anal spots smaller than in P. jthilolaus; snbmarginal 

 spots larger. 



On underside, position of red line of hindwing as in P. philolaus, central 

 portion of line thin. Pale streaks on abdomen broader than in P. philolaus. 



The species does not vary much. The ? , however, appears to be dimorphic as 

 in philolaus : 



a'. ?-f. xanticles Bates (1863) similar to the <S . This form is not known, 

 but doubtless exists. 



b'. ?-f. snheha nov., wings black, except a row of yellowish snbmarginal spots 

 and two red anal spots. 



Though somewhat resembling in colour P. arcesilaus, of which it has generally 

 been considered a near ally, P. xanticles is in fact hardly more than a southern 



