DICHROMA. 243 



rounded, with the costa of the fore-wings considerably arched. 

 There is a double row of black spots, marginal and sub- 

 marginal, on all the wings, black spots at the end of the cells, 

 and three black spots nearer the base of the fore-wings, which 

 have also a short black line at the base of the costa. 



FAMILY LIGIID^:. 



The antennae are thick, and usually pectinated ; the thorax 

 is short, hairy, and often crested ; the legs are stout ; and the 

 hind tibiae furnished with two pairs of spurs in both sexes ; and 

 the tarsi are often spiny. The wings are entire ; the fore- 

 wings long, and the hind-wings long and unusually narrow, and 

 usually destitute of markings. 



This is a small Family, with representatives in different parts 

 of the world. Several species are found in Europe, and one 

 in England. Three South African species are here figured. 



GENUS DICHROMA. 

 Dichroma, Westwood in Jardine's Nat. Libr. Exot. Moths, p. 



224 (1841); Walker, List Lepid. Ins. Brit. Mus. xxiv. p. 



1145 (1862). 

 Argyrophora, Guenee, Spec. Gen. Lepid. Uran. et Phal. ii. p. 



230 (1857), nom. prceocc. 



The antennae are slightly pectinated in the male, and simple 

 in the female; the head and palpi are very scaly, and the 

 proboscis is long and convoluted. The legs are long, and the 

 tarsi spiny; the hind tibiae are long and slender, with rather 

 long spurs. The fore-wings are prettily marked with silvery- 

 white. 



DICHROMA EQUESTRALIS. 



(Plate CL., Fig. i.) 

 Dichroma equestralis, Westwood in Jardine's Nat. Libr. Exot. 



R 2 



