174 
LEPIDOPTERA INDIG A. 
patches in the males (hereinafter described) that the species can be correctly 
separated. 
Characteristics oe the Male.—I n the males of certain species of Calysisme there 
is a difference in the position and size of the glandular patches of scales, which 
normally occur on the underside of the forewing, and also on the upperside of the 
hindwing (where they are overlapped by a tuft of hair), in all the species of the 
genus, this difference being also accompanied by that of the colour of their clothing 
scales, and by the shape of the scales themselves. Firstly , we find, as in the species 
which we have determined to be the true mineus of Linnseus, that the glandular 
patch on both wings is small, and the patch on the underside of the fore wing situated 
upon the middle of the submedian vein, both, however, being clothed with blackish 
scales ; these scales, as seen under the microscope, are densely packed, but loosely 
raised and overlapping, are large, broad, oval, and with even front-edge. Secondly , 
in the species named visala , and which hitherto had been erroneously identified by 
modern entomologists as representing the Linnsean mineus (as detailed further on), 
the glandular patches are elongated, the patch itself on the underside of the fore- 
wing being two-thirds larger than that in the true mineus , and extends from the middle 
of the rein to the transverse discal band , both patches, moreover, being clothed with 
pale yellow scales , which are large, rather long, and broadest anteriorly, with even 
rounded front-edge. Thirdly , another difference occurs in the species which we have 
named intermedia , where the patch on the underside of the forewing is of an inter¬ 
mediate size and length, being nearly twice the size of that in mineus . occupying 
a similar middle position on the submedian vein, and in which the clothing scales are 
dark brown , somewhat longer, narrower, and. anteriorly more curved. And fourthly , 
we find a difference in the shape and size of the ordinary patch on the wpperside of 
the hinclwing, as occurs in the species we have named Horsfieldii and Distanti (and 
described among the Indo-Malayan allied species), wherein the sub-basal tuft of 
hairs only partially overlaps a very prominent and abnormally elongated patch of 
bright yelloio scales , the patch itself extending from above the base of the first sub¬ 
costal and then bending through the interspace between its two branches to nearly 
half-way towards the outer margin of the wing, its end thus being conspicuous 
beyond the hairy tuft. 
CALYSISME PEBSEUS* 
Wet-Season Brood (Plate 59, fig. 1, la, b, (Jlc, d, $ )„ 
Papilio Blasius , Fabricius, Ent, Syst. Suppl. y. p. 426, No. 488-9 (1798). 
Mycalesis Blasius , Butler, Proc. Zool. Soe. 1867, p. 720, fig. 4, $ ; Catal. Fabr. Lep. Brit. Mus. p. 34 
(1869); Catal. Satyr. Brit. Mus. p. 137 (1868). Distant, Bhop. Malayana, p. 52, pi. vii. fig. 7 $ 
* Perseus being the oldest name given to this sjDecies, it consequently takes precedence of Blasius. 
