1920] Holland, Lepidoptera of the Congo 153 



show that the two races commingle about the headwaters of the Uelle 

 River and indicate a great eastward extension of the race originally de" 

 scribed by Rothschild and Jordan from the northwestern areas 

 of the Ethiopian subregion. This is, however, what might have been 

 expected. C. cloanthe (typical) has no dark marginal line on the primaries ; 

 C. cloanthe ligata has such a line. Both forms have "wet-season" and 

 "dry -season" subvarieties. The "dry seasonal" form in each case is 

 light under the wings, and the "wet seasonal" form is dark. 



The specimens, with the solitary exception of the female captured 

 at IVIedje on August 1, 1910, were taken at Faradje and Niangara in 

 November of that year. Three males and seven females, including the 

 female taken at Medje in August, belong to the form C. cloanthe ligata 

 Rothschild and Jordan; five males and six females belong to the "wet- 

 season" form to which Staudinger applied the varietal name C.ob- 

 scurior, in which the under side of both wings is quite dark brown. 



Salamis Boisduval 



(137) 1. Salamis parhassus aethiops (Palisot de Beauvois) 



Papilio cethiops Palisot de Beauvois, 1805, Ins. Rec. en Afrique et Amerique, 



Lep., p. 22, PI. III. 

 Salamis parhassus Aurivillius, 1913, Seitz, Gross-Schmett., XIII, p. 217. 



Sixteen specimens. One was taken at Gamangui in February and 

 another at the same place in June. Four were caught at Niangara in 

 November and all the rest were captured at Medje from June to 

 September. 



(138) 2. Salamis cacta (Fabricius) 

 Papilio cacta Fabricius, 1793, Ent. Syst., Ill, part 1, p. 116. 



Salamis cacta Aurivillius, 1913, Seitz, Gross-Schmett., XIII, p. 218, PI. lc. 



On the under side of the wings there is displayed a remarkable dis- 

 similarity in color and maculation. No two specimens are exactly alike. 

 This is true also of the very large series which we have from the French 

 Congo and southern Cameroon. It is singular that some "species- 

 maker" has not found pleasant recreation in naming and describing the 

 different individuals which exist in various collections, each of which 

 might give opportunity for the exercise of descriptive powers, especially 

 if use were made of a binocular microscope, which has become such a 

 fashionable adjunct in entomological and ichthyological research in 

 recent years. 



Twenty-five specimens, mostly males. One was taken at Baf- 

 wabaka in January, several at Niangara in November, but by far the 

 largest number at Medje from May to September. 



