162 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xn, 



//. terpsickorina (Westw.) is Usta wallengreni (Felcler). 



H. pyretorurn is referred to Satumia [but has since been made the type of a new genus 

 (Eriogyna) by Jordan. Dr. Packard actually designated //. pyretorurn as the type of a new 

 genus, without suggesting a name, in a brief memorandum]. 



[Henioclia lindti Griinberg (1910), from southwest Africa, has recently been added to the 



genus.] 



HENIOCHA APOLLONIA (Cramer). 



(Fig. 17.) 



Plate XXXVIII, fig. 5. 



Phalaena Attacas apollonia Cramer, Papillons Exotiques, III, p. 97, PI. CCL, A. 1782. 

 Bombyx apollonia Olivier, Encycl. Meth., Ins., V, 31, 28, PI. 70, fig. 4, ?1789. 

 Henioeha apollonia Hubner, Verz. bek. Schmett., p. 157, ?1822. 

 "Heniocha apollonia Angas, PI. Lep. Zoolu Country," ?1847. 

 Saturnia apollonia Westwood, Proc. Zool. Soc. London, 1849, p. 47. 

 Satumia apollonia Walker, Cat. Lep. Het. Brit. Mus., VI, p. 1272, 1855. 

 Heniocha apollonia Kirby, Syn. Cat. Lep. Het. I, p. 771, 1892. 

 Heniocha apollonia Rothschild, Novitates Zoologicae, II, p. 49, 1895. 



Imago. — One 9 , one o* . Head and body dull cream white. Fore wings white as a ground 

 color; base of the wing brown, with ochreous and white sclaes extending from the base along 

 the costa, forming a wide costal shade. Three lines beyond the base, of which the basal one 

 forms an oblique band in the discal cell near the discal spot and is characteristic of the species. 

 Two extradiscal wavy lines brown, edged within with ochreous; outer edge of the wing, including 

 the margin and fringe, pale sable brown. Discal spot or ocellus large, round, black, not clear, 

 but the scales have clear spaces between them; the balck center is inclosed by a linear white 

 circle, then a black brown circle edged externally with dull ochreous; 8 by 7 mm. 



Hind wings white, with two broad lines beyond the discal spot as on the fore wings. 

 Discal ocellus smaller than on the fore wings, but without any ochreous ring; 6 by 6 mm. 



Expanse of the forewings, s , 100 mm. ; 9 95 mm. 



Length of a fore wing, s , 45 mm. ; 9 45 mm. 



Breadth of a fore wing, 6* , 23 mm. ; 9 24 mm. 



Length of a hind wing, c? , 31 mm.; $ 32 mm. 



Breadth of a hind wing, c? , 24 mm. ; 9 25 mm. 

 Geographical distribution. — Cape of Good Hope (Layard; Mus. Comp. Zool. Cambridge, 

 Mass.; British Museum), Port Natal (British Museum). 



HENIOCHA TERPSICHORE (Maass. and Weymer). 

 [Satumia (?) terpsichore Maassen and Weymer, Beitr. Schmett., V (1886), figs. 113, 114.] 



Larva. — Last stage: Length, 60 mm. Body cylindrical. Head small, only slightly more 

 than one-half as wide as the prothoracic segment; surface smooth, with groups of from one to 

 five or six microscopic granulations; blue black, shining, sending off steel-blue reflections. 

 Prothoracic plate smooth, shining, with slight vestiges of two tubercles on the front edge of 

 each side of the median line low down, the lower one (infraspiracular) directly over the base 

 of the legs, the larger of the two, it is broad and flat, bearing five small tubercles, but no setae. 

 The two hinder thoracic segments each with eight tubercles, those of the dorsal and supraspi- 

 racular series about twice as high as thick, square at the end, being more or less truncated, and 

 bearing six stump-like tubercles, which look like the base of a broken seta. (I am not sure 

 whether the setas are really broken off or wanting.) Those of the dorsal and subspiracular 

 series of the abdominal segments are not quite so large and high and are more conical than the 

 thoracic ones. 



On the tergum of the eight abdominal segment are two separate dorsal tubercles; they are 

 slightly larger and higher than those on the abdominal segments in front and are square at the 

 end; they are quite wide apart; those of the ninth segment are of the same size, but much 

 farther apart. 



