TEANSFOEMATIONS OF SOME SOUTH-AFEICAN LEPIDOPTEEA. 169 



Observations ost the Heterocera. 



Family SATURNinXffi. 



Nudaurelia belina (Westwood). (Plate VI. figs. 21, larva, half-grown; 22, larva, 

 full-fed; 23, pupa.) 

 Anther aa belina Westwood, Proc. Zool. Soc. 1849, p. 41, pi. viii. f. 2. 



Larva (early stage). Head and body velvety black, covered with pale bluish-white 

 spots placed most thickly subdorsally ; each somite bearing six black spines of moderate 

 length, the subdorsal spines being longer than the remainder; the spines are inclined 

 to the rear, and each spine bears a few whitish hairs near its base ; legs and abdominal 

 claspers black ; spiracles red. 



Final stage. In this stage the bluish-white spots have increased to such a degree 

 that the larva has a bluish-grey appearance, the spines and spiracles alone showing out 

 black. 



Feeds on Rhus longifolia (Sond.), Natural Order Anacardiacese, and other trees at 

 Durban. 



Pupa. Red-brown with very large antennae-covers, and, like other species of this 

 genus, the transformation is effected underground. 



The moth is fairly common in Durban, being at least double-brooded. 



Usta Terpsichore Maass. (Plate VI. fig. 24, larva.) 

 Usta terpsichore Maass. Beitr. Schmett. v. ff. 113, 114 (1886). 



Larva. Head and first somite velvety black, the head having steely-blue reflections, 

 and bearing a small orange frontal spot between the eyes and near its apex. Body : 

 ground-colour castaneous, each somite bearing two broad dark steely blue-black bands, 

 which coalesce dorsally and laterally, and enclose two castaneous spots between them 

 subdorsally ; each somite also bears (with the exception of the first) very small paired 

 tubercles or spines subdorsally, laterally, and spiracularly, the subdorsal spines on the 

 2nd and 3rd somites being considerably larger than those on the others. Legs and 

 abdominal and anal claspers black, with blue reflections ; spiracles black, edged with a 

 fine white line. 



Feeds on Commiphora carycefolia (Oliv.j, Natural Order Burseracese. 



Pxifa. Red-brown, and the transformation is effected underground. 



Mr. J. F. Quekett, who has reared it, informs me that this species is single-brooded, 

 and that the perfect insect is rather scarce in the Durban district. 



