JEFFERIS TURNER. 



357 



c?. 90-95 mm. S. 105 mm. Head and thorax brown. Abdomen brown on 

 dorsum; basal and three apical segments whitish-gTey. Legs brown. Torewings 

 triangular, costa- straight to middle, thence strongly arched, apex rounded, 

 strongly produced and falcate in c?, less so in ?, termen sinuate; brown; basal 

 area and a broad costal strip nearly to apex irrorated with white; a white line, 

 edged anteriorly with reddish pui-ple, from beneath one-fourth costa to near 

 base of dorsum, angled outwardly in disc; a large, central, hyaline, discal patch 

 approximating to semicircular, with convex edge towards costa, outlined with 

 oehreous and then partly with blackish; a sinuate white line, constricted on 

 veins, edged posteriorly with reddish-purple, and followed by a narrow band 

 of white irroration from beneath three-fifths costa to dorsum near tornus; an 

 oehreous subterminal shade broader beneath costa; a narrow, white, subcostal 

 suffusion towards apex limited by a black, subapical, white-edged spot; an 

 ochreous-gi'ey terminal band, containing a fine, irregularly crenate, submarginal 

 line, towards apex reddish-purple and edged with white posteriorly, towards 

 tornus fuscous; cilia ochreous-grey. Hindwings elongate on dorsal half, termen 

 straight, tornus broadly rounded; as forewing's, but discal patch subtriangular ; 

 disc suffused with reddish-purple; submarginal line reddish-purple, preceded by 

 a series of reddish-purple spots, some of them confluent. 



N. Aust. : Fort Darwin from December to March (F. P. Dodd). Also from 

 Timor and Flores. 



Index to Saturniadae. 



Genera. 



3. Coseinocera 



Synonyms in italics. 



astrophela 

 disjimcta 

 dohertyi 



eucalypti 

 helena 



2. hereules 



1. insignis 



8. intermedia 



4. janetta 



5. loranthi 



7. melvilla 



1. omphale 



6. purpurascens 



1. simplex 



3. varicolor 



BOMBYCIDAE. 



Tongue absent. Palpi short or obsolete. Antennae short (less than one- 

 half), bipectinated to apex in both sexes. 'Tibiae with short terminal spurs 

 concealed by hairs. Frenulum and retinaculum usually weakly developed or 

 absent; hindwings with a basal costal expansion. Forewings with basal fork of 

 anal vein obsolete or nearly so; 1 (Ic) present or absent, 5 from middle or 

 above middle of cell, sometimes from upper angle, 7, 8, 9, 10 stalked or 10 

 absent; cell usually small; areole absent. Hindwings with two anal veins; 1 

 present or absent, 5 from middle or above middle of cell, or stalked with 6, 12 

 fused with cell at base, or connected with it near base, thence diverging. 



This family, although of small extent, presents considerable variation in 

 structure, some genera having retained primitive characters which are absent 

 in the majority. For instance, Bombyx mori has a rudimentary non-functional 

 frenulum in the c?. Some neotropical genera have a frenulum in both sexes, in 

 the d it is strong and articulates with a well developed retinaculum. In Bombyx 



