Ixiv 



to be a member of tlie same association by the table of captures 

 printed on p. Ix. 



For the reasons already stated, it seems improbable that 

 Ehrmann's cepheus is a second species of Pseudopontia. It 

 is nevertheless the case that there are two geographical forms 

 of P. paradoxa, which may perhaps deserve to rank as sub- 

 species. These two forms, so far as I have observed, show a 

 constant though slight difference in venation. In all the 

 specimens that I have examined from Sierra Leone and 

 Nigeria, the costal and subcostal veins of the hind-wing are 

 united either by direct contact, or by a connecting bar 

 (Plate B, fig. 7). The same condition obtains in all Dr. 

 Carpenter's specimens from Uganda. But in every example 

 from the Luebo district (Kassai river) in the southern Congo, 

 the two veins are separated by a distinct interval, running 

 parallel with each other for a short distance, but never joining 

 (Plate B, fig. 6). My friend Dr. Eltringham has kindly 

 mounted for me a hind-wing of each kind, with the veins 

 stained to show the difference; these will be thrown on the 

 screen. 



On the whole, we seem to be justified in saying that Pseudo- 

 pontia, though clearly an isolated form, shows more corre- 

 spondence with the Pierinae than with any other subfamily. 

 The discovery of its immature stages, which are at present 

 unknown, would no doubt settle at once the question of 

 its affinities. 



Pseudopontia paradoxa australis subsp. nov. — Differs from 

 typical P. paradoxa Feld., only in the fact that the costal 

 and subcostal veins in the hind-wing are separated by a 

 distinct interval, running parallel with each other for a short 

 distance, but never joining. The same two veins in typical 

 P. paradoxa are united, either by direct contact, or by a 

 connecting bar. 



Southern Congo, Kassai Kiver, Luebo district.* Types, 

 cJ and 9, in Hope Collection, Oxford. 



* A single specimen in the Hope Collection bears the label " Cam- 

 aroons; Rutherford. Hewitson 1874." The data require confirmation 

 before they can be accepted as beyond doubt. 



