142 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xii, 



PSEUD APHELIA APOLLINARIS fBoisduval). 



Plate CX, figs. f-j. 



[Satumia apollinaris Boisduval, Delegorgue, Voy. Afr. Austr., II (1847), p. 601.] 



Heniocha paleacea Herrich-Schaeffer, Samml. Aussereur. Schmett., p. 60, <? , fig. 308, 1855. 



Imago. — One <f . Antennae black, body and wings at base snow-white, clouded on the costa 

 and outer edge, two yellow discal spots in the center of the wing, each encircled with a dusky 

 smoke brown ring. No ocellus on the hind wing. A submarginal dusky linear scalloped line 

 common to both wings; six scallops in fore wing, and seven in hind wing. Edge of wing dusky, 

 with a distinct straw-yellow spot at each end of the vein in both wings, divided by the vein 

 and appearing as if double, there are seven of these spots on the fore wing, and seven on the 

 hind ones. The wings are marked below as above, but rather less distinctly so. Abdomen 

 white, with a dorsal and lateral row of black dots. 



Expanse of fore wings, <? 58 mm. 



Length of fore wing, <? 32 mm. 



Breadth of fore whig, <? 20 mm. 



Length of hind wings, <5 2S mm. 



Breadth of hind wings, <? 20 mm. 

 Geographical distribution. — Durban, Natal. 

 Pupa. — Thick, short, with a remarkably long, slender, acute, straight anal spine. 



Subfamily Saganik^! Packard. 



Head broad in front, triangular, narrowing decidedly towards the mouth, the vestiture 

 long, shaggy, and partly concealing the eyes, which are rather small. Antenna? of male 

 broadly bipectinated to the tip, the joints (about 23-24 in S. sapatoza) are unusually long and 

 the pectinations are also unusually long, and are straight as in Or7niscod.es, Eylesia, etc., not 

 curved near the base as in the normal Hemileucidse; the distal pair of pectinations are as long 

 and large and densely ciliated as those of the basal pair; only the last joint without pectina- 

 tions ; those of the ? with short pectinations. 



Palpi short, weak, porrect, not reaching the front; the vestiture long, thin, bushy and so 

 confounded with that of the front, that they can not be easily detected. No traces of maxillae 

 visible. 



Body moderately thick; abdomen conical, short, not reaching much beyond the basal 

 two-thirds of the inner edge of the hind wings. 



Fore wings in $ unusually falcate, the costa much curved toward the apex, which is much 

 produced, moderately rounded, not scmare as in Holocera, and not so narrow and pointed as in 

 Micrattacus. Outer edge deeply excavated; inner angle not rounded, unusually square. Those 

 of ? subfalcate, wide. 



Hind wings distinctly triangular; costal edge full, convex; outer edge very slightly exca- 

 vated; inner angle rounded; inner edge straight. 



Venation: Veins IL_ and II 2 [IIL., etc., in revised nomenclature] absent, the discal A^eins 

 situated in the outer third of the wings. Hind wings: Vein III 2 not forming an independent 

 vein, not being detached from IIIj. (For other details see the generic characters.) 



Legs long and slender, no fore-tibial epiphysis. 



Sagana is evidently a very much modified form, and should with our present knowledge, 

 there being only two species known, be regarded as the type of a distinct subdivision of the 

 Hemileucidae, although at first sight it seems to have no affinities with this family. The amount 

 of degeneration in the venation, the broadly pectinated antenna?, the lack of a fore-tibial epiphy- 

 sis, and the peculiar discal clear lunate or oval spots, the presence of an apical mark like that 

 of Saturnians, are noteworthy features. The subfamily characters are the same as the generic 

 ones, and are subject to future revision. The discovery of the larva and a knowledge of its 

 transformations are much to be desired. 



Geographical distribution. — Neogaeic in its range. The only genus known occurring in 

 Mexico, Colombia, anil Venezuela. 



