PAPILIO. 11 



the upper, with the black inclining towards russety. The seconda- 

 ries, besides the characters already mentioned, present a marginal 

 range of lunules of a clear green and an anal spot of red vermilion, 

 but much smaller than in P. sinon. The external edge is denta- 

 ted as in sinon by a tail less long and entirely black ; emargina- 

 tions less bordered with whitish than in sinon. Under side rus- 

 sety white, with the red spot more narrow than above. There is 

 also a reddish, feeble line, which goes from the middle of the edge, 

 without passing the superior nervure of the discoidal cellule ; an- 

 tenna? black ; palpi clothed with white hairs ; head black, with a 

 yellowish ray on each side, which continues on the sides of the tho- 

 rax, thorax black : abdomen black, annulated with yellowish white 

 on the sides; below, of this color, with a longitudinal narrow black 

 ray. 



Expands 58 mill. California — Oregon ? 



Lucas. 



15. P. arcesilaus Lucas. Guer. Rev. Zool. 1852, 131. 



Male, a little smaller than P. ajax. Upper side brown black, 

 with bands of a pale yellowish white thus disposed ; first, linear, 

 common, touching the abdominal edge of the secondaries so as 

 nearly to join the red spot of the anal angle, from which it is sepa- 

 rated only by a small line of black; the second is a little wider; the 

 third, more narrow, not passing the discoidal cellule ; the fourth, 

 very wide, bifid in parting from the median nervure : the fifth, 

 very short, wider and less elongated than the third ; the sixth, 

 nearly marginal, feeble, interrupted by the nervure ; under side of a 

 black more clear, with the same designs as above ; upper side of 

 secondaries deeper black, with the spot of yellowish white very 

 large, occupying all the centre and losing itself posteriorly in a 

 space powdered with yellowish ; anteriorly, it is interrupted by a 

 black band very short, which proceeds from the middle of the edge; 

 the red spot is large, transverse, oblique and supported behind on 

 two yellowish spots ; the exterior edge presents a marginal space 

 of yellow lunules, dentated ; tail black, yellow at the extremity. 

 Under side resembles the upper, and has besides in the middle, a 

 red sinuous ray, bordered with black on the internal side at its an- 

 terior part, and slightly edged with this color on the external side ; 

 the red transverse band is more narrow than on the upper side, 

 edged with white behind, with the lunules of the anal angle pow- 



