104 Journal New York Entomological Society. [Voi. x. 



For the opportunity of examining these and other larvae, which are 

 preserved in formaline and glycerine, so as to well retain the shape 

 and colors, I am indebted to the generosity of Lieut. Col. J. M. Faw- 

 cett, of Carlisle, England, who has added so much to our knowledge 

 of the Sphingicampid and Saturnian larvse of southern Africa. 



Aurivillius, gen. nov. 



Saturnia Westwood, Proc. Zool. Soc. London, March 27, 1849, p. 41. 



Anthenra Walker, Cat. Lep. Het. Brit. Mus., V; Maassex u. Weymer, Bei- 

 trage zur Schmett. , IV, fig. 59, 18S1 ; Kirbv, Syn. CaL Lep. Het., I, p. 756, 1892. 



Kiidaurelia ROTHSCHILD, Novitates Zoologicae, II, p. 43, 1S95 ; SoNTHONNAX, 

 Annales des Laboratoire d'Etudes de la Soie, X, p. 7, 1901. 



This genus is dedicated to Professor Dr. Chr. Aurivillius, of 

 Stockholm, who has added so much to our knowledge of the Lepi- 

 doptera of the Ethiopian realm. The type is Xiidaurelia a rata 

 (Westwood); no other species is as yet known. It inhabits Natal. 



Imago. — (J. Head smaller in front, not so broad as in Nudatirelia cyihetca. 

 Antennae of male not so broadly pectinated ; the tip with 7-8 joints, filiform, a little 

 slenderer and the vestigial pectinations shorter than in A^udatirdia ; the joints are 

 rather long, slender and contracted at their base, especially those beyond the middle,, 

 where they are nearly three times as long as broad. Palpi stout, well developed, 

 densely scaled, 3-jointed ; when denuded they seem to be rather slender, the second 

 joint nearly twice as long as the first, the third button-like, not quite so long as the 

 second is thick. 



Thorax moderately stout ; vestiture moderately long ; abdomen not very stout. 



Fore wings somewhat more arched on the costal edge, and the apex more pointed 

 than in Xudaurelia cylherea. Hind wings with the apex rounded ; the outer edge 

 moderately convex. Abdomen not extending to the cuter third of the inner edge. 



Venation : (Fig. 7) that of the fore wings differs entirely from the arrangement 

 of the veins in A'lidjtirelia cytherea : in the place of origin of the first subcostal vein 

 (II I ), which is situated at a point in front (towards the costa) of the end of thedistal 

 cell (in Xudaurelia it arises a little beyond the middle of the cell), it arises, moreover, 

 a little more than half way between the origin of the common stalk of II I, II 2, II 3, 

 and 11^, and the stalk of veins II I and II 3. The two discal veins (discocellulars) 

 form a rather short straight line ; vein III 3 is partly detached, slightly more than in 

 Nudaurelia. The venation of the hind wings is much as \xi. Xudaurelia, with slight 

 differences. Fig. 9. 



Legs rather long, fore tibi?e rather long, the tarsi normal, well developed ; tibia! 

 epiphysis of ,J a little more than half as long as the tibia; oval-lanceolate, tip rather 

 sharp ; inner and outer surfaces clothed with a dense, very short pile ; but along the 

 outer edge a few large long scales. No spurs on fore tibiae, but a short one on middle 

 and hind tibiae. 



The male genitalia (Figs. 10, 11, 12, 13 and 14^ present notable differences 

 from those of Nudaurelia ; the suranal plate is broad at base, but ends in a long 



