Netv Lejridoptera collected by Mr. T. A. Barns 87 



is slight, we may infer that whilst the 2 of similis has diverged 

 definitely from the 2 of kirbyi, the $ has only slightly diverged, 

 and is probably only an individual aberration. 



These forms are not confined to any one season. The distribution 

 is as follows : — 



1. f. kirbyi. — Gaboon, Cameroons, Angola, Kassai Eiver, French 

 Congo. 



2. f. similis. — Gaboon, Cameroons, Upper Kassai, Longji. 



3. f. intermedia. — Cameroons, Ituri Forest, Uganda. 



60. Heivitsonia bitjeana B.-Bkr. 



H. kirbyi bitjeana Bethune-Baker, Ann. Mag. N. H. (8), 16, p. 190 

 (1915). 



H. beryllina Schultze, Archiv f. Naturges., 81 Jahr., Ab. A., p. 163 

 (1915) (pub. 1916). 



Mr. Bethune-Baker, loc. cit., thought that this might be the wet 

 season form of kirbyi, but Schultze, loc. cit., mentions that his beryllina 

 was taken at the end of the rainy season, and that boisduvali, kirbyi, and 

 similis were flying at the same time. Furthermore we have 2 2 of 

 kirbyi from the Cameroons taken at the same time as bitjeana 2 2 . 



The genitalia of bitjeana show an important difference from those of 

 kirbyi in the shape of the sickle-like process arising from the base of 

 the uncus and surrounding the anal tube (pi. VIII, fig. 3). 



Upon these considerations we must treat bitjeana as a distinct 

 species. 



61. Epitola posthumus Fbr., and urania Kirby. 



We have examined the genitalia of these forms and there is no 

 doubt but that they are distinct species. 



The differences in the genital armature will be apparent upon 

 reference to the drawings on plate VIII. It will be noticed that there 

 are differences in the shape of the uncus, in the shape of the sickle-like 

 process arising at the base of the uncus, in the shape of the strongly- 

 chitinized process arising from the juxta (penis sheath and penis of 

 some authors), and the formation of the two processes arising from 

 this organ. 



62. Heivitsonia boisduvali congoensis subsp. nov. (pi. XIV, fig. 64). 



The typical form occurs in the Cameroons, French Congo, Sierra 

 Leone, and Gold Coast, 



