rg 
. Pseudacrea albostriata LATHY. 
(In Dr. JORDAN's opinion albostriata is the Uganda 
subspecies of dolomena HEW.) 
It is possible that in a/bostriata we meet with a sudden mutation 
sufficient to provide the foundation for the evolution of mimetic 
resemblance. Only 3 individuals exhibiting a very rough likeness to 
the pattern of the male Planema macarista were present in the 
series of 21 captures recorded in Table I. But even in these mimics, 
roughas they are, it is improbable that we are witnessing the results 
of a sudden mutation, and hard to resist the conclusion that there 
has been some moulding by natural selection. The position and 
form of the white bar crossing the hind wing, the retention of the 
fulvous tint atits costal extremity and the replacement of this 
colour by dark fuscous beyond both margins of the bar, form a com- 
bination of mimetic features in whose simultaneous and spontan- 
eous origin it is difficult to believe. 
Papilio dardanus dardanus BROWN, female 
f. Planemoides TRIMEN. 
With the exception of Ps. kuenowi hypoxantha, this was the 
rarest mimic in Table I, only 4 specimens being'captured between 
May 23rd and August 31st. The numerical proportion borne by 
planemoides to the other female forms of dardanus at Entebbe 
requires a much longer period of time and larger number of capt- 
ures for its determination. It may be stated however that the 
hippocoon F. form, mimicking Amauris niavius L., is far com- 
moner than any other, indeed probably far more so than all the 
others together. Although, in my experience, always in smal] num- 
bers, cenea STOLL, and trophonius WESTW., occur at Entebbe, to- 
gether with niode AURIV., the form which enters Combination III. 
The fore wing bar of planemoides resembles that of Pl. pogget 
nelson? rather than of the male macarista. Its shape is not very 
like that of poggei, but is even less like macarista. The fulvous bar 
of an Entebbe form of Elymnias phegea F., which enters Combin- 
