■ii" NOVITATES ZOOLOGICAE XXII. 1915. 



tlie whole abdominal area is pale brown up to the cell and sharply deKiied, the 

 colouring contrasting very strongly with the wing. Moreover, the scaling inside 

 the abdominal fold is not wliite, but only slightly paler brown than the scaling 

 between the rell and the jiouch. Li\ the specimen of kneliDi here figured, the ponch 

 is entirely unfolded; in that of f//ro«/ the scent-organ is only unfolded once, the 

 pouch itself being still closed. 



The red discal band on the underside of the hindwing is much broader in 

 kuehni than in diaoni, and also extends somewhat farther towards the abdominal 

 margin, the diameter of the band being at the iipjier median nervnle about the 

 same as the distance ot the band from the distal margin. There is no trace of 

 snbmarginal spots in hitehin. 



The red lateral sjiot at the base of the abdomen appears to be smaller in kuehni 



Fig. 3. — Qcnitaliii of Papilio kuehni. 

 ., 4. — ,, ., dij-imi. 



than in dixfliii, and the eiaspers are less extended red. In some specimens of 

 dixord there are scattered red scales on the sides of the segments preceding the 

 eiaspers. 



The distinctions in colour and wing-contour are abundantly snjjported by 

 differences in structure. 



The neuration exhibits in both wings some noteworthy characteristics easily 

 recognised and sufficiently prominent for separating the species. Apart from the 

 cell being, in both wings, somewhat narrower in kuehni than in dixoni, which 

 difference stands in connection with the lesser width of the kuehni-wiags, we find 

 the following distinctions : The distance between the points of origin of the second 

 and third snbcostals is in kuehni longer than tiie combined lengths of the two 

 transverse discocellulars, in dixoni shorter than or as long as these veins. The 



