1920] Holland, Lepidoptera of the Congo 197 



(271) 9. Cymothoe langi, new species 

 Plate MIX: Figure 7, d"; Figure 8, 9 



cf. This species, which is closely allied to C. ueymeri, C. staudingeri, and C. 

 johnstoni, is easily distinguished from all of them by the fact that the light sagittate 

 markings which cap internally the black dart-shaped submarginal spots on the inter- 

 spaces are entirely suppressed on the hind wings, and also on the fore wings except in 

 space 2, where the lower limb of one of these markings survives as a narrow line point- 

 ing downwardlj' and outwardly, and on space 5, where there is an oblong light spot, 

 slightly bifid at its outer extremity, and on space 6, where there is a faint linear streak 

 of lighter scales on the dark ground of the broad outer margin. On the under side 

 the mesial white band, which is much whiter than on the upper side, is narrower, 

 and tapers from the costa of the fore wing to nearly the anal angle of the hind wing, 

 being sharply defined outwardly by a thin almost straight dark line. Expanse, 

 60-63 mm. 



9 . With the males I associate, I believe correctly, a female, which rather 

 closely resembles that sex of C. hewitsoni Staudinger. It differs from C. hewitsoni 9 

 in not having the white bar at the outer end of the cell of the fore wing and in not 

 having the small black bar which occurs in C. hewitsoni at the end of the cell of the 

 hind wing. On the under side a difference presents itself in the fact that the inner 

 dark area is defined outwardly b}^ a straight line in C. langi, while in C. hewitsoni it 

 is inwardly curved or concave on the secondaries, and at the point where this dark 

 area terminates abruptly on the lighter ground of the fore wings in C. hewitsoni there 

 is in C. langi a thin dark line, which extends forward until it reaches the costal margin, 

 about one-third of the distance from the apex of the fore wing. Expanse: cf , 60 

 mm.; 9, 70 mm. 



The type cf , and allotype 9 , are in The American IVIuseum of Natural History, 

 together with a number of male paratypes. There are also several male paratypes 

 in the Holland Collection in the Carnegie Museum. Type locality, Medje. 



The American Museum Congo Expedition took eleven males and 

 the single female above described, one male having been captured at 

 Gamangui in June, the female, which is the allotj'pe, at Medje in 

 June, and all the other specimens at the latter place in July and 

 August. We also have two males taken by Mr. A. I. Good at Lolodorf, 

 Cameroon, in November 1914. 



(272) 10. Cymothoe staudingeri Aurivillius 



Cymothoe staudingeri AvRiyihhivs, 1898, Rhop. J^thiop., p. 212, PI. iv, fig. 5, cf. 



Two somewhat defective males which I refer without doubt to 

 this species, in spite of the fact that the light mesial band tends to 

 coalesce with the light sagittate submarginal markings about the middle 

 of the fore wing, the dark lunate lines which define these inwardly in the 

 present specimens being fainter than in the figure given bj^ the author 

 of the species. In all other respects the specimens agree perfectly, both 

 on the upper and lower sides, with the descriptions and figures of Auri- 

 villius. The specimens were taken at Medje, one in July, and the other 

 in Septeml)er. 



