130 Psyche [Sept.-Dee. 
2. Cretule: capping proximally each semimacule in both 
wings; more or less conspicuously white or whitish (almost in- 
visible on the powdery white ground of some forms) or, very 
rarely, retaining some diffuse pigment; crescentic or sagittate 
or squarish, i.e., more or less in keeping with the shape and size 
of the corresponding semimacule, but usually somewhat more 
pointed and larger; sometimes so greatly developed as to seem 
to fuse with the halo of the corresponding second macule (actu- 
ally it is the halo which intrudes), and then appearing raylike if 
the whole system of macule I is transversally reduced ; at other 
times, however, especially in hindwing where the semimacules 
are better developed, and more often in females, occupying the 
whole breadth of the interspace for a certain distance basad 
from semimacule before “terminating” crescentically or taper- 
ing to a point (phylogenetically, however, expanding distad 
from that point), so that the sequence of cretules (especially if 
they fuse with the halos of series II) has been described by 
observers as a “white band”; in some well pigmented forms 
very small or quite absent, especially in forewing. Appearing 
on the upperside in some females, in whitish or bluish (or violet 
as portions of the overlay). 
3. The prceterminal mark: tending to be heart-shaped (ex- 
panding distad) in hindwing where it is generally strongly fus- 
cous and contains the scintilla; roughly rhomboidal or (when 
reduced) bar-like in forewing where its pigmentation is weaker; 
situated in the same interspaces as the semimacule distally to 
the latter, and varying in size accordingly; tending to complete 
obsolescence in some weakly pigmented forms, although the 
scintilla may be retained (see V,2). 
4. (The remnants of an) outer cretule: colorless (white) 
scales diffused in the ground of the crescentic terminal space 
with which, when the latter lacks pigment altogether, it is prac- 
tically synonymous; usually more conspicuously white in hind- 
wing but sometimes very much so in Cu 2 of forewing in other- 
wise well pigmented forms. Appearing on the upperside in some 
females with the same variations as 2. 
5. The aurora: racially varying in extension (together with 
that of the interval) and in transversal development, (to- 
gether with that of the semimacule) ; on the underside in both 
sexes ( but somewhat better developed in the female); rang- 
ing there from light yellowish to deep reddish orange; of 
