46 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xii, 



The genus so far as my scanty material indicates is recognizable by the broadly, stiffly 

 bipectinate o* antennas, those of the 9 simple; by the broad acuminute tibial odoriferous sack, 

 the long distinct third palpal joint, and the venation as above described. 



Larva. — Head rounded, much as in Gynanisa; second thoracic segment with two large 

 dorsal spines, twice as large as those (supraspicular ones) below, and bearing one or two spinules; 

 those of the third segment of the same size as the dorsal abdominal ones; they are curved back- 

 ward, and the dorsal ones are directed a little inwards. The median spine on eighth abdominal 

 segment is wide, deeply cleft. On each abdominal segment is a group of from three to six irregu- 

 lar, flattened, ruffle-like bright yellow warts, while the body is velvety black. No prothoracic 

 spines. Anal legs sphingiform. Suranal plate large, rounded triangular. 



Confounded with those of Aniheraea untd the Hon. W. Rothschild separated a number of 

 species from Antheraea under the present generic name. The species differ from those of 

 Aniheraea not only in venation, but in the subplumose antennae of <? and the simple 9 antennas. 



Under Nudaurelia Rothschild, page 43, enumerates 23 species, but of these we have referred 



the following to other genera: N. arata, N. belina, N. menippe, N. zambesina, N. tyrrhea, and 



N. suraka. 



NUDAURELIA DIONE (Fabricius). 



Plate XXXII, fig. 5; XXXVII, fig. 1; XLVII, fig. 3 {antigone). 



Bombyx dione Fabricius, Ent. Syst., Ill, p. 410, No. 9, 1793. 



"Bombyx petiveri Guerin, Bull. Soc. sericicole, p. 270, 1845." 



Saturnia wahlbergii Boisduval, Delegorgue, Voyage Afrique Austr., II, p. 600, 1847. 



Telea wahlbergii Hbrrich-Schaefper, Sammlung Aussereur. Schmet 1 ,., p. 10, I, fig. 95, 1854. 



Aniheraea dione Walker, Cat. Lep. Het. Br. Mus., V, p. 1244, 1855. 



Aniheraea gueinzii Staudinger, Stettin Ent. Zeitung, XXXIII, p. 120, 1872. 



Antheraea simplicia Maassen and Wetmer, Beitrage z. Schmett., 1st. Leif., fig. 20, 1872. 



Antheraea wahlbergii Wallengren, Oefv. Vet. Akad. Forh., XXXII, (1) p. 97, 1876. 



Antheraea dione Maassen and Weymer, Beitrage z. Schmett., 3e Leif., fig. 52, 1873. 



Aniheraea preussii Staudinger. 



Anthereaea persephone Staudinger. 



Antheraea antigone Staudinger. 



Antheraea anthina Karsch, Berlin. Ent. Z*eit., PI. XIX, figs. 1, 2, 1892. 



Nudaurelia wahlbergi Rothschild, Nov. Z"ool., II, p. 43, 1895. 



Nudaurelia wahlbergi subsp. anthina Rothschild, Nov. Z"ool., p. 43, 1895. 



Nudaurelia wahlbergi Rothschild subspecies flavescens Rothschild, Nov. Z*ool., p. 43, 1895. 



Nudaurelia dione Sonthonnax, Annales Lab. d'Etude de la Soie, X, p. 17, PI. VI, figs. 2, 3, 1900-1901. 



Nudaurelia dione wahlbergi Sonthonnax, Annales Lab. d'Etude de la Soie, X, p. 19, PI. VI, figs. 4, 5, 1900-1901. 



Nudaurelia dione 6u(Zm Sonthonn ax, Annales Lab. d'Etude de la Soie, X, p. 19, PI. VII, fig. 1, 1901. 



Nudaurelia dione emini Sonthonnax, Annales Lab. d'Etudes de la Soie, X, p. 19, PI. VII, fig. 2, 1900-1901. 



Nudaurelia dione gueinzii Sonthonnax, Annales Lab. d'Etude de la Soie, X, p. 20, PI. VII, fig. 3, 1900-1901. 



Imago. — Two S , one 9 . Head, thorax, and abdomen yellowish brown, in 3 the thorax 

 bright yellow ocher, but the head and collar reddish brown. Fore wings brown yellow or yellow 

 bathed with pink; a diffuse scalloped basal line situated nearer the ocellus than the base of the 

 wing. Extradiscal line straight, slightly scalloped, broad, diffuse and ending in the outer third 

 of the costa, not much incurved. Ocellus oval cylindrical, longer than wide, inclosing a D- 

 shaped space surrounded by yellow ocher, this by a sable-brown ring and the last by a broad 

 grayish white ring. 



Hind wings with the basal line faint or obsolete, the extradiscal sable brown shade lined on 

 the inside with dull grayish, and either touching or situated a little way from the ocellus. The 

 latter as in the fore wings, but circular and the central clear area is round, one-half as large as 

 that on the fore wings. 



Under side of the wings with an extradiscal line common to both wings. Ocellus of fore 

 wings not so large as above, but the clear area is fully as large. On the hind wings the ocellus 

 is nearly one-half smaller than above, the brown ring so much narrower, but the clear space is of 

 the same size. 



Expanse of fore wings <? 136 mm.; 9 124 mm. 

 Length of fore wing, <? 67 mm. ; 9 58 mm. 



