146 MEMOIRS NATIONAL ACADEMY OF SCIENCES. vol. xii, 



Markings: A singular transparent discal spot on fore wings, which is subtriangular, scal- 

 loped on the outer edge and with a sinus on the inner side; a small obscure lunate discal spot 

 on the hind wings. In this genus the fore wings are still more produced toward the apex than 

 in Ludia; the outer edge more deeply hollowed out, while the hind wings are not so broadly 

 triangular, and the veins are beyond the discal cell shorter, and there are minor differences in 

 the venation shown in the figures. 



Geographical distribution. — [South Africa.] 



HOLOCERA SMLLAX (Westwood). 



Plate XXXIII, fig. 9^ CXI, figs, a, b. 



[Saturnia (Henucha?)] smilax Westwood [Proc. Zool. Soc. Loud., 1849, p. 59]. 

 [Bolocera smilax] Kirby, Syn. Cat. Lep. Het., I [p. 774]. 



LARVA. 



[Fawcett, Trans. Zool. Soc. Lond., XVII, p. 171, PI. VI, fig. 35.] 



Imago. — 6*. Body and wings reddish chestnut brown, fore wings with two light pink 

 red lines close to the discal spot, the inner oblique, not wavy, the outer sinuous, approaching 

 near the inner behind the discal spot, and bent inward on the costa, the space thus inclosed 

 is darker reddish brown, as is the apical region. Discal spot large, transparent and of singular 

 shape, being subtriangular, with three scallops on the outer edge and a very deep or close nar- 

 row sinus on the inner edge. Hind wings with a small obscure curved narrow crescentiform 

 discal spot, white, broadly edged with dark reddish brown. Extradiscal line sinuous. 



Under side of the wings a little clearer, so that the lunate discal spot on the hind wings 

 shows much more distinctly than on the upper surface. 



Expanse of fore wings, & 55 mm. 



Length of fore wing, s 26 mm. 



Breadth of fore wing, <? 10 mm. 



Length of hind wing, <? 16 mm. 



Breadth of hind wing, s 10 mm. 

 Geographical distribution. — [Natal.] 



Larva. — Last stage (one specimen in formalin): Length 45-50 mm.; thickness 11 mm. 

 Lieut. Col. Fawcett's figure, presumably of natural size, is 75 mm. in length. 



Head of the same shape as in Automerisio. Hemileuca, etc., a little more than one-half as 

 wide as the prothoracic segment and narrowing above; surface smooth, without the groups of 

 granulations nearly always present in the Bunaeinae; chestnut brown, shining. Antennae 

 large and long as in American Hemileucidae. 



Only six tubercles on each thoracic and abdominal segment. They are rather large, promi- 

 nent, rounded, conical, and do not give rise, as in the American genera, to a single spinulated 

 spine, but on the crown are 10 to 20 separate spiniferous warts. On the prothoracic segment 

 are two small low flattened tubercles bearing 9-10 warts, each giving rise to a slender, sharp, 

 spine-like seta, the setae radiating from the tubercle, as in all the others. The supraspiracular 

 tubercle (on the side) is large, prominent, and, like all the others on the body behind it, is red- 

 dish chestnut at base and blackish on the crown. It is as large as any of the dorsal ones on 

 the segments behind, and bears about 20 long sharp spine-like setae, which are dull reddish, 

 tipped with black ; the longer spines (in my single example) are about as long as the tubercle 

 is high. On all the succeeding segments, thoracic and abdominal, are similar rather large conical 

 tubercles, like haycocks in shape, each bearing about 10-15 setae. Those of the two dorsal 

 rows are all of nearly the same size and height, those on the second and third thoracic segments 

 being but slightly larger than the abdominal ones. A median tubercle on eighth abdominal seg- 

 ment, which is wider but not larger than those on second and third thoracic segments, 

 rounded conical, showing no signs of its double origin, except from above, where the spine-like 



