42 G. F. L. Marshall— iBare species of Rhopalocerows Lepidoptera. f No. 2 



7. PaPILIO CLAEiB, n. sp. 



Plate IV, fig. 5 <J . 



$ . Wings above velvety brown, almost black in some specimens, paling 

 at the outer margin broadly at the apex and decreasing towards the hinder 

 angle. Forewinr/ with four short streaks of powdery blue at the end of 

 tlie cell, behind which are four longer and narrower streaks toward the 

 base, also a discal series of eight bluish streaks increasing in length 

 from the costa and each extending from near the outside of the cell to 

 the edge of the paler outer border, the two lower streaks between the 

 submedian and median nervures, the remainder one between each pair of 

 nervules. ELindiuing with a prominent submarginal row of pure white 

 longitudinal streaks one on each side of each nervule leaving a wide 

 brown margin beyond on which in some specimens indications of the 

 continuation of the white streaks to the margin show through from the 

 underside ; a rounded yellow spot at the anal angle bordered inwardly by a 

 blackish lunule. Body black, spotted with white. 



Underside uniform paler brown of the same tint as the margin on the 

 upperside, tlie forewing unspotted except with faint traces of whitish at 

 the hinder angle ; hindwing with the row of white streaks as on upperside 

 but continued up to tlie margin, the yellow anal spot and black lunule as 

 on upperside and a round white spot at base above the costal nervure. 



Length of forewing 19 inches, whence expanse = 39 inches. 



Habitat. — Upper. Tenasserim. 



P. clarcB is closely allied to P. hewitsonii, Westwood, from Borneo, 

 of which it may possibly be only a permanent geographical variety. It 

 differs from P. hewitsonii in the presence of the blue streaks on the forewing 

 which are visible more or less in all the thirteen specimens examined, in 

 some very prominent in others partially obsolete, but none are without 

 blue at the end of the cell and in the interspaces immediately beyond it. 

 It also differs in the paling of tlie margin of the forewing ; and in the 

 hindwing in the single row of prominent white streaks. Its northern ally 

 P. slateriy Hewitson, differs in the shape of the forewings having them 

 narrower and more acuminate, and also entirely lacks the white streaks 

 on the upperside of the hindwing. In shape of this wing P. clarce 

 corresponds with P. hewitsonii. 



The difference between Assam and Tenasserim species in regard to 

 the abbence or presence of white spots on the hindwing has curious 

 parallels among the Euploeas which are mimicked by this group of JPapiliOf 

 E. deione, Westwood, and JS hopei^ Felder, from Assam lack the white 

 border spots on the hindwing, while their representatives in Tenasserim 



