of Ecuador and Bolivia. 89 



males. The best character Avhereby to separate gigantea 

 and procera appears to be, that in the latter the inner 

 edge of the dark portion of the Avings of the $ is nearly 

 regular, whereas in the former it is produced towards the 

 base, but whether this will stand the test of minute appli- 

 cation may be doubtfid. 



No. 2. — Only especially remarkable as a 5 with the 

 colours of the S as in No. 1. Certainly nothing more 

 than an abnormal and accidental condition. 



No. 3 is the normal ? . 



No. 4 — in which the dark portion of the wings com- 

 mences midway between the nodus and the pterostigma — 

 I am not able to re-examine. 



Thore picta, ^ambuv {Saimder sit, Selys, olim ; cf. Ap- 

 pendice an " Troisiemes Additions," p. 65). 



Two $ from Ecuador, of which one was formerly seen 

 by De Selys, and referred doubtfully to this species. 

 (" Troisiemes Additions," p. 36.) They are remarkable for 

 their great size, and for the fact that in one the dark ter- 

 minal portion of the wings is not preceded by a milky-white 

 band ; in the example above alluded to, the length of the 

 posterior Aving is 44 mm. ; another, from the same locality 

 (immature), is somewhat smaller (posterior wing 40 mm.), 

 and shows indications of the white band. 



Thore holivixma, n. sp. 



$ . Distinct from described forms in the coloration of 

 the wings. In the anterior wings the base is hyaline up 

 to the end of the quadrilateral, and also on the costal 

 margin to the nodus, but the Aving up to midway between 

 the nodus and pterostigma is opaque ochreous-yellow, ex- 

 cepting the costal margin (as far as the princi])al sector), 

 which becomes somewhat milky; the rest of the wing 

 brownish-black, with brilliant purple and green reflections, 

 the inner edge of this dark portion slightly concave. The 

 posterior wings similarly coloured, only that the ochreous 

 part is suffused with smoky-brown, but leaving a not 

 well-defined paler band, of which the inner edge com- 

 mences at the nodus and is continued in a very oblique 

 manner, the outer edge formed by the inner edge of the 

 dark apical portion, hence the band is cuneate, broad on 

 the costa, and reduced to a point on the inner margin : 

 about fifty antecubital nervules in the anterior wings. 



