24 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xii, 



TJsta spin cocoons. Mr. J. H. Watson writes that Ludia and Aglia spin cocoons. Ludia, in 

 the arrangement now given, is excluded from the Ceratocampidae.] 



Geographical distribution. — The range of this group embraces Chile and southeast Africa; 

 two genera being restricted to south temperate America, the Chilian subregion (Wallace) or 

 province of the Neogaeic realm of von Ihering, and the third to the Aethiopian realm. Thus 

 far no forms are known from the eastern side of South America or the western coast of Africa. 



UROTA Westwood. 



Urota Westwood, Proc. Zool. Soc. London, p. 60, 1849. 

 Urota Walker, Cat. Lep. Het. Br. Mus., VI, p. 1330, 1855. 



Imago. — <? and 9 . Head in front [moderately wide, not narrowing below, toward the 

 labral region ; the hairs are long, uneven, and project straight out, not radiating so as to partially 

 conceal the eyes, which are moderately large and round. Antenna; of 3 subplumose, well 

 pectinated to the ends, and the joints numerous, shorter than wide on the basal half and bearing 

 but a single pair of long slender fine branches, which are well ciliated, but the extreme tip is 

 filiform ; those of the ? but little less pectinated than in the o* , the pectinations being but 

 slightly shorter than in the o* . 



Palpi short, hairy, directed downward and not easily distinguished from the hairs of the 

 front of the head; thorax moderately stout, shaggy. Maxilla; not visible. 



Fore wings falcate; outer edge slightly concave. The hind wings are tailed in o* , the tail 

 short and broad; in 9 the wing is wider, with a wide projection corresponding to the tail of 

 the male. 



Venation: Vein II t [III U in revised nomenclature] arises in the outer third of the discal 

 cell close to the stalk giving origin to veins II 3 and II 4 ; no vein II, present; origin of vein III 2 

 a little detached from vein II and III, situated nearly one-third across end of discal cell; the 

 discal cell rather large and long compared with that of Eudelia, the hinder discal vein not 

 directed outwards. Hind wings with the two discal veins taken together not so long and 

 oblique as in Eudelia, otherwise the venation is very similar, though as the 3 tail is shorter the 

 veins that pass into it are also shorter. 



Markings: Body and wings uniform fawn brown; fore wings with a basal and extradiscal 

 line and a small opaque white oval ( 3 ) or round ( 9 ) discal spot on both wings. Abdomen in 

 the 3 rather short, not reaching to the inner angle of hind wings; in 9 longer, extending 

 to this angle. There is a quite close relationship between this genus and the Chilian Eudelia. 



Larva. — Body cylindrical; head large, round, smooth. The body segments.are not convex, 

 the caterpillar being generalized in its outlines. The tubercles are in six rows on each segment 

 behind the head as usual in Saturniidae, minute, flattened, not easily seen in blown specimens, 

 and give rise to two to five short flattened setse, each one arising from a minute wart situated 

 on the tubercle. On the eighth abdominal segment not a double median tubercle, but two 

 separate minute ones. Suranal plate rounded, convex, with three setiferous but minute 

 tubercles on each side. Anal legs of moderate size. 



In the much reduced tubercles we have a highly specialized feature. In the pair of separate 

 dorsal tubercles on the eighth abdominal segment we have a feature not characteristic of the 

 Sphingicampidse, but rather of the subfamily Saturniinse. The bands of highly colored granula- 

 tions is a not uncommon feature in the group, as we see it in the larva of Nudaurelia dione and 



Gynanisa iris. 



UROTA SINOPE (Westwood). 



Plate XXXI, fig. 12; CX, fig. k. 



Urota sinope Westwood, Proc. Zool. Soc. London, 1849, p. 60. 



Urota sinope. Herrich-Schaeffer, Samml. anssereur. Schmett., p. 60, fig. 94, 1854. 



Urota sinope Walker, Cat. Lep. Het. Br. Mus., VI, p. 1331, 1855. 



Urota sinope, Kirby, Syn. Cat. Lep. Het., I, p. 764, 1892. 



Urota sinope, Maassen and Weymer, Beitrage Schmett., Ill, fig. 55, 1873. 



Imago. — One <? and one 9 . Body and wings light fawn-brown (ochreous brown) . Antennas 

 slightly paler. Fore wings narrower in 3 than 9 , where they are rather wide and more falcate 



