NOVITATES ZOOLOGICAB XXII. 1915. -l I O 



stalk of the fourth and fifth subcostals is mach shorter in dixoni than in kiiehni, 

 being in kn.ehni longer and in dixoni shorter than the transverse discocellnlars. In 

 the hindwing the lower median vein has a more distal position than the upper 

 radial in kiiehni, while in dixoni the inverse is the case. The first and second 

 radials being closer together and the cell at the same time broader in dixoni, the 

 apical portion of the cell is more abruptly narrowed in that species than in kiiehni. 



The genitalia of the S also differ in the two species. The armature is very 

 similar, but the proximal tooth (Pj of the harpe is in- kuekni longer and more dorsal 

 than in dixoni, and the lower one of the two apical teeth of the harpe is directed 

 distad in dixoni, while in kuehni it is in a plane with the upper tooth (cf. te.xt-figs. 

 3 and 4). Moreover, the penis-funnel, i.e. the triangular sclerite supporting 

 the penis-sheath on the ventral side and forming part of the ninth sternite, is more 

 produced iu dixoni than in kuekni. The individual variation in the genitalia 

 shown by the specimens of dixoni which I have examined does not affect these 

 distinctions. 



The hindtibia of the S of kuehni is more swollen than in dixoni, and the fringe 

 of hairs at the extreme edge of the abdominal fold of the hindwing is very much 

 longer and denser iu dixoni than in kuehni. 



The female of dixoni is paler than that of kachni, particularly the basal areas 

 of both wings, on the upperside. The submargiual spots of the hindwing are 

 strongly marked below and distinctly indicated above by pale crescents. The red 

 discal band of the underside is very broad in kuehni. The neuration of the females 

 is as in the respective males, except that the lower median nervule in the hindwing 

 of kuehni is on a level with the upper radial instead of originating more distally 

 than this vein. 



The relationship of dixoni and kuehni is not so close as would appear at first 

 sight. Now I have examined males of both species I have come to the conclusion 

 that kuehni represents on Celebes the series priapus, si/corax, hageni, aidoneus, 

 semperi, whereas dixoni belongs to the series zaleucus, varuna, nox. 



