156 MESSRS. H. J. ELWES AND JAMES EDWARDS: 



40 (39). Hind wing below without an irrregular continuous pale 



terminal band. 



41 (48). Apex of tegumen undivided. 



42 (47). Tegumen without lateral horns. 



43 (46) . Apical lobe of clasp much expanded^ broadly and evenly rounded 



in a semicircle. 



44 (45) . Fore wing below greenish grey-brown ; hind wing below with a 



pale dot normally present in cell 6 'serratulas, Rbr. 



45 (44). Fore wing below blackish brown; hind wing below normally 



without a pale dot in cell 6 -speyeri, Stgi-. 



46 (43). Apical lobe of clasp not expanded in a semicircle ^alveus, Hiibn. 



47 (42). Tegumen with a horn on each side, tip compressed. Clasp of 



the same type as zona malvoides, n. sp. 



48(41). Apex of tegumen bipartite malv(e,JAwa. 



49 (38). Markings of hind wing below obsolesceut by reason of general 



paleness. Tciiumen with a branched horn ou each side . melotis, Dup. 



50 (37). Hind wing below with the pale spot on the transverse vein 



produced inwardly towards the origin of vein 7.^ 



51 (54). Hind wing below with a pale dash in cell 1 b near the base. 



52 (53). Fore wing above with a straight oblique pale macular band 



from the costa beyond the middle to the dorsum before the 



middle andromedcE, Wlgrn. 



53 (52) . No such band ou fore wing above ^cacolice, Rbr. 



54 (51). Hind wing below with the pale basal marking in cell 16a spot^ 



not a dash. 



55 (56) . Hind wing below pale sordid yellowish- or russet-green . . . onopordi, Rbr. 



56 (55). Hind wing below dark (usually blackish) green centaureee, Rbr, 



57 (2). Hind wing below with the pale median band sharply defined, 



narrow, non-macular, and preceded by abroad iri'egular brown 

 band, which bears a small pale spot near the basal third of 

 cell 7 ; or if macular, then not interrupted, and preceded by 

 a dark Y-shaped marking reaching quite across the wing and 

 followed by a dark subtenninal band. 



58 (61). Hind wing below with the pale median baud preceded by a 



large dark Y-shaped marking reaching quite across the wing 

 and followed by a dark subterminal band. 



59 (60). No dark termiual band on hind wing below bieti, Ob. 



' We cannot distinguish with certainty between serratula- and alveus, except by the male genitalia. If 

 we make the presence or absence of pale markings on the hind wing above the basis of separation, we find 

 that this character varies too much to be rehable ; if, on the other hand, we use the male genitalia, we get two 

 forms which do not intergrade. The male genitaha can always be referred with certainty to their respective 

 types, although both kinds are known to occur in the same locality, as at Vemet and Mont Cenis. 



^ Very near the preceding, and probably not distinct. 



* Vide note to paragrapli 37. 



■" This insect has the snme t}-pe of clasp form as andromed(e. 



