170 
Annals of the Transvaal Museum 
leaving an apical elongate white patch; both wings with a terminal black line; 
cilia of both wings as above; hind wing with a diffused fuscous costal shading 
at antemedial and medial areas; a well-defined costal postmedial fuscous patch; 
a faint fuscous striga on discocellulars and a very faint fuscous postmedial line. 
$. Like but postmedial line much more incurved and more densely 
irrorated with fuscous, hind wings tinged with cinnamon -brown (xv) ; all lines 
less defined ; under side, the whole fore wing is suffused with cinnamon-brown 
except some terminal and apical white patches; hind wing with terminal half 
suffused with cinnamon -brown except near termen; and the postmedial line 
which is left white ; basal half irrorated with cinnamon-brown ; striga on disco- 
cellulars and terminal line cinnamon-brown. 
Exp. <J, 31 mm.; 37 mm. 
Hab. I have this species from Pretoria, Oct., Febr. ; Three Sisters (Barberton 
distr.), Febr.; from Natal, at Karkloof, Verulam, Umkomaas in Jan.; from 
S. Rhodesia, Umtali, Jan. 
Larva feeds on Trimeria alni folia Planch, and Grewia lasiocarpa E. M. 
Constructs a tough cocoon on stem of food plant (E. L. Clark). 
Genus CERURA. 
(PI. I, fig. 10; PI. Ill, figs. 7-9; PI. V, figs. 1-3.) 
Cerura Schrank. Fauna Boica, n, 2. Abth. p. 155 (1802). Type fur cula. 
Wlk. Cat. v. p. 982 (1855) 
Hmpsn. Moths of India, 1. p. 155 (1892). 
Pack. Mem. of the Nat. Acad, of Sciences, vu. p. 263 (1895). 
Meyr. Handbook Brit. Lep. p. 310 (1895). 
Schaus. Trans. Ent. Soc. Bond. p. 288 (1901). 
Spuler. Schmeit. Eur. 1. p. 91 (1908). 
Description made of spiritalis. 
(J, Proboscis almost absent; palpi short, about breadth of eye, porrect; 
first and second joint of equal length; third joint about fth of second joint; 
all joints covered, especially first and second on under side, with long hairs; 
eyes large, round, glabrous; antennae nearly half of costa, bipectinate till tip; 
first joint of shaft sub-globular, with a tuft of long hairs on inner side, second 
joint without any pectination; branches six to eight times shaft, for about 
frd, apical third with shorter branches in both sexes, in $ the branches 
are often only three times shaft or less ; branches broad in middle, pointed at 
the ends, rough on the surface and sparsely covered with short hairs, some 
bristle -like hairs at tip; fore tibia with process reaching beyond tibia; process 
curved at frd, covered on outer side with short hairs; mid and hind tibiae with 
one pair of terminal spurs only, which are sharply pointed and as long as frd 
of hind tibia; femora and tibiae covered with hair mixed with a few scales; 
two small tufts of scales at middle and end of mid and hind tibiae : tarsi 
densely covered with scales. Fore wing broad, over half; costa straight in 
<$, or nearly so, often gently excurved in $ ; apex well rounded ; termen even 
and gently curved; tornus curved; 1 a forming a fork with 1 b and continued 
as a spur to inner margin ; 2 from frd lower median ; 3 from frd 2 to 4 ; 4 from 
lower angle; discocellulars oblique; 5 from middle of discocellulars; 6 from 
middle of areole; 7 stalked with frd of stalk, 8, 9 1 ; 8 and 9 stalked for half 
1 In most other species of Cerura 7 comes from end of areole, but in C. swierstrae 
this vein comes in some specimens from end of areole and in others from beyond 
middle of areole, which is in that case usually longer. 
