432 Dr. A. G. Butler on new African Pierine 
secondaries bright lemon yellow with a marginal series of cordiform 
dark brown spots terminating the nervures; primaries below 
ochreous with pale creamy costa, the cell suffused with saffron to- 
wards the base, but not abruptly ; subapical grey band obsolete, 
marginal black spots smaller than above, fringe black ; secondaries 
butter yellow with deep saffron basi-costal area ; spots on margin 
as above; pectus creamy yellow ; abdomen flesh-tinted. Expanse, 
59 millim. 
Hab. ANGOLA (Coll. Hewitson). 
This is so strikingly distinct from everything else in the 
genus that I do not hesitate to name it in spite of the fact 
that 1t is a female; the male will probably be found to have 
a broad blackish border to the primaries. In the genus 
Belenois, of which I have recently completed the arrange- 
ment, the seasonal forms are always tolerably well-defined. 
Lelenois, though nearly related to Phrissura, has a different 
style of marking; the males never have a pencil of hair 
between the anal clasps as have those of Phrisswra; the 
primaries as a rule are more produced, the costa being 
longer, so that the wing-outline more nearly resembles that 
of Appias ; there are however exceptions to this rule in a 
few specimens which more nearly approach Phrisswra in 
outline. A few notes on some of the seasonal forms in 
Lelenois may perhaps be useful to the systematist; they 
follow the usual rules of variation which have, in many 
cases, been more or less satisfactorily proved by collectors 
and breeders of Pierine ; so that there can be no reason for 
refusing to accept them as facts. If they are rejected as 
seasonal forms, they must be accepted as variations, inas- 
much as (in nearly every case) the intermediate phase occurs. 
Belenois hedyle, Cramer. 
This is a wet-season phase, of which 5. rhena is the 
female of the dry phase. In the Museum there are six 
males and one female of the wet phase in addition to five 
examples in the Hewitson collection ; of a perfectly inter- 
mediate phase we have five males; of the dry phase we ~ 
have three males and two females, one additional example 
being in the Hewitson collection. 
Belenois thysa, Hopft. 
The Angolan form of this species differs somewhat from 
the more Southern and the EKastern type of the species, 
