EXPERIMENTS UPON ACRiBA ENCEDON, 



409 



Family 4. 



Parent F. The female parent, o£ the form lycia, was captured in Oni 

 clearing near the lagoon. Two batches of eggs were laid with a day's 

 interval. The first batch began to hatch on Sept. 6, and pupation com- 

 menced on Oct. 5. 



The eggs of the first batch produced 51 all-female offspring, of which 

 29 were infuseata and 22 lycia. One infuseata emerged Oct. 12 and the 

 remaining butterflies from this day onwards, but precise dates were not 

 recorded. 



The eggs of the second batch hatched Sept. 7-8, and pupation took place 

 from Oct. 5. Of the 18 resulting females, 4 were infuseata and 14 lycia. 

 These emerged on the following dates : — 



Dates of 



Emergence. 



]911. 



Female 

 infuseata. 



Female 

 lycia. 



Oct. 11 



2 



2 



„ 12 



1 



4 



„ 13 





1 



From „ 11 



1 



7 



Totals 



4 



14 



Family 5. 



Parents G and H, both of the form infuseata, were captured in cop. in 

 Oni Clearing by the lagoon, Sept. 15, 1911. The male G is a typical 

 West African infuseata, although the subapical fore-wing bar is paler than 

 usual, perhaps as a result of wear. In the female, however, the same 

 marking is of a fulvous tint, as in commixta and daira. Eggs were laid 

 Sept. 18 and hatched Sept. 26, The female parent died Sept. 20. No dates 

 of emergence were kept, but the whole cycle fell well within the wet season, 

 which lasted from about mid-March to Dec. 8, 1911. 



The eggs produced 28 female offspring, all of the form infuseata — 15 with 

 the white subapical bar of the ordinary female encedon, 13 with the fulvous 

 bar of the female parent. In two of this latter set, the hind wings are 

 partially white, so that the specimens closely approach the form commixta. 



