( X ) 
south-western (Spain) and south-eastern (Asia Minor, Syria, 
etc.) habitats are most interesting, and show a remarkable 
parallelism in development, whilst not at all tending to 
become identical. This parallelism is shown chiefly in the 
coloration of the s. In the south-western and south-eastern 
areas, the following pai’allelism in the forms occur :— 
COLOUK, BRIGHT BIUTR (APPROACHING THAT OF A. TIRETIS). 
{ var. caucasica, Led.—Caucasus, 
var. coryclonius, H.-.Scli.—Taurus nits, 
var. syriaca, Tutt.—Lebanon nits. 
South-western race var. hispana, H.-Sch.—Aragon, etc. 
Colour, pale. 
South-eastern race 
South-western races 
/var. olympica, Led.—Brussa, Aiuasia, Sliar 
t Deresy (North Syria). 
( var. arragonensis, Gerh.—Aragon, 
ab. caerulescens, Tutt {albirxtns, H.-Sch.).— 
Aragon. 
var. albicans, Bdv.—Sierra Nevada. 
Little is yet known of the Rivieran races, of which three 
have recently been brought forward ;— 
(1) var. meridionalis, Tutt.—Hyferes, Draguignan, Ste. Maxime, etc. 
April-May. 
(2) var. constanti, Reverdin (not yet published).—Pardigon, Canadel, 
Cavalaire. April. 
(3) var. rezniceki, Bartel.—Italian Riviera, Nice, Mentone. June. 
The first-named seems to be the general variety or local race 
throughout the Riviera, the two others localised forms of this 
race so that Reverdin suggests the names should be applied 
as:— 
var. meridionalis, Tutt, forma constanti, Reverdin (dark underside). 
„ ,, forma rezniceki, Bartel (pale underside). 
Besides these in certain parts of Germany, Austria-Hungary, 
Bosnia, etc., a form with very wide marginal band, extending 
to the discoidal along the costa, becomes racial, although, in 
England, Fi’ance, Switzerland and most parts of Central 
Europe it occurs only aberrationally. This is var. {et ab.) 
inarginata, Tutt (1896) \_ = horussia, Dadd (1909)]. 
The normal underside spotting is very similar in both 
species, and its modifications almost identical. The underside 
form of A. corido7i, with only discoidal and marginal spots 
