African Species of the Genus Acraca. 345 



This interesting species is only found on the Island of 

 Sao Thome. It is quite unlike any other known form. 

 The figure in Rhop. Exot. seems scarcely black enough, 

 the spots having in reality a somewhat velvety appearance. 

 I have examined two $ ^ in the Staudinger collection. 

 These and the type in the Lisbon Museum are the only 

 examples known to me. 



133. ACRAEA INSULARLS. 



Acraea insnlaris, Em. M. B. Sharpe, Proc. Zool. Soc, p. 555 

 (1893); Smith and Kivby, Rliop. Exot., Acraea, 5, p. lU, 

 pi. 5, fF. G, 7 (1894); Auiivillius, Rliop. Aeth., p. 112 (1898). 



Sao Thome. 



^ . Exp. 48 mm. 



F.-w. black brown. In cell, just before origin of nervule 2, a 

 yellow transverse spot traversing the whole width of cell. Just 

 before end of cell a broad oi'ange quadrate patch contiguous 

 witli a large orange spot at base of area 2, and beneath the latter 

 a crescentic orange spot in lb nearer margin. Two small orange 

 subapical spots separated by nervaie 6, and beneatii these but 

 rather nearer margin a smaller spot in area 4. In the transverse 

 area between the .spots the ground-colour is somewhat darker. 



H.-w. with a dark l)asal suffusion followed by a yellow patcli 

 outwardly shading into orange. A dark brown marginal border, 

 its inner edge traversing the wing almost perpendicular]}' as far 

 as nervule 4, where it bends sharply inwards to inner margin. 

 Black spots as on underside. 



Underside. F.-w. much as above but .spots pale ochreous 

 dusted with reddish, and ground-colour somewhat paler with 

 dark streaks in cell and areas G, 4, and lb. 



H.-w. pale greenish grey with a brown border as on upper- 

 side but oiitwardly bounded by a paler marginal line. Black 

 spots as follows. One in 9 at base, two in 7 rather close together 

 the second just beyond origin of nervule 7, three discal spots in 

 5, 4, and 3 the middle one larger and more proximal. Two in 

 cell and two on discocellulars, a basal, a subbasal and a distal 

 in Ic, two distal spots in lb, and a sul)l)aRal in la. 



Head, tliorax -and abdomen black. 



I have not had an opportunity of examining the type of 

 this species which is in the Lisbon Museum. As Prof. 

 Aurivillius has noted (/. c.) its true affinity is obscure. It 

 does not resemble any other species with which I am 

 acquainted. 



