ISCADIA. By Dr. M. Deaudt. 
411 
C. siopera Dyar resembles haematopis, but has a dark grey shaded costal area extending into the cell, siopera. 
The rest of the wings is flesh-coloured reddish grey, the lines dark red, but only faint and finely drawn. The 
round stigma is pale with red centre. Hindwings pure white in $ with wide blackish margin in Wing ex¬ 
panse: 26 mm. Mexico (Cordoba and Orizaba) to Panama. 
C. filifera Wkr. (= inflexa Morr.) (56 f). This is a somewhat larger species. Forewings grey-white, filifcra. 
dusted with brown, except for the pure white abdominal area. The delicate transverse lines are black. Stigma 
round and somewhat paler. The subterminal line only indicated by a darker inner edge. Hindwings trans¬ 
parent white. In $ there are fuscous marks on costa indicating the origin of the lines; the ends of the veins 
on hindwings are blackened and there is a brown marginal line. From Michigan and Florida and also occurring 
on the Bahamas and Haiti. 
C. stroca Schs. (56 f). Body and wings silvery white, the former somewhat admixed with brown. Sparse stroca. 
black pepperings on forewings and delicate black transverse lines, the subbasal and antemedian being double, 
the round stigma with brown core and a fine black surround. The brownish subterminal is indistinct and diffuse. 
The white hindwings dusted with pale brownish. Brazil (Castro Parana). 
C. elota Mschlr. (56 f). The white forewings dusted with reddish brown, both anterior transverse lines elota. 
simple, black and with outward convex arch. The dentate postmedian line forms an acute angle on the sub¬ 
median fold, that almost extends to the antemedian. The round stigma has a red centre. Subterminal line is 
indicated by a patchy inner brownish shading. Hindwings transparent white. Porto Rico and St. Lucia. 
C. leucopis Schs. (56 g) is similar, forewings pale reddish admixed with blackish brown. The posterior leucopis. 
transverse line is situate on a pale reddish band and is accompanied by a similar fainter anterior line. Before 
the diffuse white subterminal line, there is a black dentate shade. Hindwings transparent white, the apical 
costal part and the ends of the veins are blackish. Costa Rica. 
C. interstitia Dyar closely resembles leucopis , but is more heavily dusted with dark red and has a larger intcrstUia. 
round stigma. Median line faintly dentate inwards. The subterminal is formed of separated black spots, i. e. 
no continuous band of spots; anteriorly, not posteriorly, the ground is pure white. Margin of hindwings more 
widely brownish black. Wing expanse: 26 mm. Panama (Cabima). 
9. Genus: Isca<lia Wkr. 
Proboscis stunted. Palpi very long, the terminal segment somewhat thickened at the tip. Thorax scaly 
with an open tuft posteriorly. Abdomen with a small basal tuft. Anterior tibiae with long hairs. Forewings 
elongate and narrow with almost parallel margins and a rectangular apex. Appendicular cell short and wide. 
Neuration normal. 
Type: I. aperta Wkr. 
1. nigra Schs. (56 g). One of the smallest species. Forewings black-brown, suffused with leaden grey nigra. 
and with black transverse lines, the anterior one being double. Both the upper stigmata with blackish surrounds, 
the round one with reddish centre, the reniform elliptical with an appression of black scales in centre. Between 
the two a dentate median line is indicated. Post-median simple. The undulate grey subterminal has an inner 
blackish shade. Hindwings transparent white, veins and margin somewhat brownish. Argentine. 
I. aperta Wkr. (= schildei Mschlr.) (56 g). Forewings grey admixed with brown; base and spots on aperta. 
costa and inner margin paler. Transverse lines black, the anterior one being double, the posterior one only 
double at costa. The latter circumscribes the top of the reniform stigma in a large loop. The stigmata with 
whitish surrounds and an appression of brown scales in centres. The whitish subterminal line is dentate. Hind¬ 
wings transparent white, somewhat brownish on veins and at margin. apertella Strd. (= ab. 1 Hmps.). The apertella. 
median area is suffused with black below the costa and in the upper half of cell. From Mexico to Brazil and in 
S. E. Peru, where it is widely distributed and common. 
1. dukinfieldia Schs. (56 g) is similar to the preceding, but smaller. The whitish forewings are mingled dukinfield 
with black-brown, median area from costa to discal fold brown, transverse lines as in aperta. Orbicular stigma 
- merely indicated by a small appression of black scales. Reniform is a blackish crescent. The double subterminal 
is intertilled with whitish. Hindwings white, veins and margin brownish. Wing expanse: 40 mm. Brazil (Castro). 
I. variegata Drc. (56 g). A very characteristic species with red-brown costal and white inner areas. It variegata. 
is easily recognisable and we refer to the illustration. It is a very common species and occurs from Mexico to 
Peru and is also found on Trinidad. 
I. producta Dogn. (56 h). Forewings grey in basal area, otherwise dark red-brown, partially admixed produda. 
with greyish. Antemedian indistinctly double. In the cell distally of it 2 appressions of black scales in paler 
annulets. The dark brown transverse line is reddish on top and somewhat edged by whitish at inner margin. 
The whitish subterminal has a brown inner edge. Hindwings are pale reddish brown, paler and whitish in basal 
area in Costa Rica to Colombia, also occurring on Trinidad. 
