SEASONAL POLYMORPHISM. 191 



darker grey on underside ; female underside colder in tone ; lunules 

 paler and smaller in both sexes ; I suggest calling it apenninogenita. 

 The latter, on the whole, leads up to race hispalis, Frhst. (I.e.) from 

 Valais (" Simplon and Martigny ") of about the same size, but with 

 very much darker colours both above and below ; broad black marginal 

 band, lunules very pale and inconspicuous on underside of male, small 

 on both surfaces in female. We then have the fine libisonis, Frhst. 

 [Soc. Ent., xxv., p. 97 (1911)] from " Klausen and Waidbruck," in S. 

 Tyrol, which I have also collected at the Erdpyramiden, m. 1400, near 

 Klobenstein, and at the Mendel Pass. It is even larger than isias, of 

 a slightly lighter colour than hispalis on both surfaces, but with a still . 

 broader black marginal band above; larger lunules below. Finally 

 there is the race found by Querci at S. Fili, on the Coast Eange of 

 Calabria, which usually resembles hispalis, except for a very peculiar 

 greenish tinge of the blue and a broader and darker black marginal 

 band than in any of the other races ; a few individuals are as large as 

 libisonis ; some are brighter blue above than the rest and have a 

 lighter tinge of grey on underside and large bright lunules, thus 

 showing signs of transition to splendida ; I should call the S. Fili race 

 bruttia. An attempt to summarise the geographical variation of 

 amandus is reduced to noting that at low altitudes one finds the light, 

 clear blue forms, with no dark marginal shading or a faint and narrow 

 one (Mentone, Florence, and presumably, if Esper's figure is correct, 

 Scandinavia), and that at higher altitudes the colour is darker on both 

 surfaces and there exists a broader and darker marginal band ; the 

 latter form, however, in S. Tyrol, comes down as low as the Isarco 

 Valley and is of large size. These lines of variation correspond,' in a 

 broad way, to those of Gyaniris semiargus, Eott. 



Agriades coridon, Poda, race caelestissima, mihi, and A. hispana, 

 H.-S. ( = aragonensis, Vrty.), race hispana, H.-S., first generation prior, 

 mihi. — During a visit I paid Count Turati last June in Milan I took 

 the occasion to ask him to show me his copy of Herrich-Scbaffer's 

 Syst.' Bearb. der Schmett., and I examined the figures of hispana. 

 I thus found out that it did not in the least represent the bright blue 

 race of coridon from Spain, so similar to race caucasica, Led., in being 

 of nearly the same blue as A. thetis, Rott., as I had till then supposed, 

 but that hispana is remarkably similar to the second generation altera, 

 Vrty., of the species I called A. aragonensis race ftorentina, Vrty., from 

 Tuscany : upperside pale greenish blue ; underside of hindwings pale 

 tawny. The consequence is that this species should be called by the 

 older name of hispana. The first generation, of a slightly brighter 

 blue above, as a rule, and with no tawny colour on underside, 

 I propose calling prior. I possess Spanish specimens of the 

 first brood from Valevidrera (Barcelona) and others of the second 

 from Valdemoro (Nueva Castilla), the former of which are in- 

 distinguishable from the Florentine florentina and the latter from 

 the Genoese larger and more boldly marked rezniceki, Bartel. 

 There is thus no doubt that H.-S.'s specimen was of this 

 sort. Gerhard's arragonensis is, specifically speaking, a synonym of 

 it, but, as regards races, it clearly represents a different one, larger, 

 silvery white instead of greenish-blue, with very prominent, but 

 detached, premarginal spots and lunules on upperside and a more 



