African Species of the Genus Acraea. 49 



Black spots very variable. When attaining maximum develop- 

 ment, usually as follows. One in 9, one in 8, two (small) in 7, the 

 outermost just beyond origin of 7. Three just beyond cell in 5. 

 4, and 3. One at base of 5, and 4 on discocellulars, two in cell 

 before the middle, one at base of 2 followed by one in Ic and lb, 

 all three in a straight line. A basal and a subbasal in Ic, a sub- 

 basal in lb, and two spots near middle of la. Some irregular 

 black at base of nervures. 



Head and thorax black with a few pale dots. Abdomen black 

 above, with pale segmental lines and lateral spots. Claws unequal. 



9 resembles the ^ . 

 A. vesperalis catori, subsp. 



Differs from typical vesperoMs in having the ground colour of 

 h.-w. pale instead of brownish-ochreous. 



A. vesperalis is so nearly allied to pentapolis that but for 

 the fact that the h.-w. patterns are so consistently dif- 

 ferent, and also that both species occur in the same place 

 without intermediates, I should have regarded them as 

 two forms of the same species. The male armatures are 

 in this case somewhat unsatisfactory guides though they 

 do seem to show slight differences. Such differences are, 

 however, much less than would appear from the figures 

 on Plate XIV. 



GROUP III. 



6. Acraea igati. PI. VII, f. 12. 



Acraea igati, Boisduval, Faune Mad.,* p. 29, pi. 4, f. 3, pi. 5, f. 3 

 (1833); Staudinger, Exot. Schmett, 1, p. 83, pi. 33 (1885) ; 

 Mabille, Hist. Nat. Mad. Lep., p. 82, 89, pi. 10, f. 1, 2 

 (1885-7); Oberthiir, Etud. d'Ent., 13, p. 13, pi. 4, f. 22 

 (1890) ; Aurivillius, Rhop. Aeth., p. 85 (1898). 

 Madagascar (Ambinanindrano). 



(J . Expanse about 60 mm. Wings transparent, the transparency 

 being caused by reduction in number and size of the scales. 

 F.-w. slightly smoky towards costa and apex and with an orange 

 brown basal suffusion extending to about the middle of the wing. 

 H.-w. with about the same amount of basal orange suffusion. 

 Some irregular black spotting at base, including a large well- 

 rounded spot at base of area Ic, and an elongated narrow black 

 spot at base of area lb. In area 6 and 7 and between end of cell 

 and margin, two large confluent black spots, and two somewhat 



* The text is published separately. The plates are in the 

 "Nouvelles Annales du Musee d'Histoire Naturelle, Paris." 



TRANS. ENT. SOC. LOND. 1912. — PART I. (JULY) E 



