1920] Holland, Lepidopter a of the Congo 205 



The collection contains ninety-six males, of which twenty-one are 

 not as yet expanded. With the exception of one example taken at Baf- 

 waboli, September 11, and another taken at Bafwasende, September 

 27, 1909, all of the specimens were captured at Medje, a few in the first 

 week in April, the rest from early in July to about the middle of Sep- 

 tember. 



(291) 3. Charaxes castor (Cramer) 

 Papilio castor Cramer, 1775, Pap. Exot., I, p. 61, PI. xxxvii, figs. C, D. 

 Charaxes castor Atjrivillius, 1911, Seitz, Gross-Schmett., XIII, p. 127, PI. xxxa. 



There are ten males of this well-known insect belonging to the 

 characteristic West African form, which has the basal spots of the under 

 side black instead of chestnut. Professor Aurivillius has proposed the 

 subspecific name C. godarti for this form. One specimen was captured 

 at Niangara on November 8, 1910. The other examples were all taken 

 at Medje, two in the month of May, the rest in July and August. 



(292) 4. Charaxes pollux (Cramer) 

 Papilio pollux Cramer, 177.5, Pap. Exot., I, p. 61, PI. xxxvii, figs. E, F . 



Charaxes pollux Aurivillius, 1911, Seitz, Gross-Schmett., XIII, p. 127, PI. xxx&. 



One male taken at Bafwasende, October 23, 1909. 



(293) 5. Charaxes eudoxus (Drury) 



Papilio eudoxus Drury, 1782, 111. Exot. Ent., Ill, p. 44, PL xxxiii, figs. 1, 4. 

 Charaxes eudoxus Aurivillius, 1911, Seitz, Gro.ss-Schmett., XIII, p. 128. 



There are three males which I refer to this species. They were taken 

 at Medje, one in May, one in Juh% and another in August. They are 

 absolutely alike and may be distinguished at once from the following 

 species by the great reduction in width of the silvery bands on the lower 

 side of the hind wings, as well as by the prolongation costad of the median 

 fulvous band of the fore wings on the upper side. 



The species is rare in collections. 



(294) 6. Charaxes mechowi Rothschild and Jordan 



Charaxes eudoxus mechowi Rothschild and Jordan, 1900, Nov. Zool., VII, p. 419; 



1899, loc. cit., VI, PI. VIII, fig. 3. 

 Charaxes mechowi Aurivillius, 1911, Seitz, Gross-Schmett., XIII, p. 128, Pi. xxxc, 



name eudoxus on plate an error. 



There are seven males of this species, agreeing throughout with 

 others which we have from Cameroon. The figure given by Aurivillius 

 (cf. Seitz, 'Die Gross-Schmetterlingedes AfrikanischenFaunengebietes,' 

 PI. xxx) does not agree with the specimens before me in not having the 



