CHLORIDEA. 79 



Alaria gaura, Westwood in Jardine's Nat. Libr. Exot. Moths, 

 p. 200, pi. 24, figs. 4, 5 (1841) ; Walker, List Lepid. Ins. 

 Brit. Mus. xi. p. 675, no. i (1857). 



Porphyrinia matutina, Hiibner, Zutr. Exot. Schmett. iii. p. 35, 

 figs. 557, 558 (1825). 



Rhodophora gaura, Guenee, Spec. Gen. Le'pid. Noct. ii. p. 170 



This delicately-tinted Moth is not uncommon in the Southern 

 United States, and measures rather more than an inch in 

 expanse. 



The fore-wings are of a somewhat yellowish-white, with the 

 basal half, the fringes, the border, and a sub-terminal band, 

 which does not quite extend to the inner margin, pale rose- 

 colour. Hind-wings white, with a suffused pale rose-coloured 

 border. Under side of the fore-wings tinged with the same 

 colour. Head and thorax sulphur-yellow. 



The larva is yellow, with a black transverse band on each 

 segment. The head is rusty- brown. The belly and legs are 

 white, with a black spot on each of the pro-legs. It feeds on 

 Gaura biennis in August. 



The colours of the moth so closely resemble those of the 

 flowers of the plant on which it feeds, that when it settles on 

 them, it is scarcely distinguishable from them. 



GENUS CHLORIDEA. 



Chloridea^ Westwood in Jardine's Nat. Libr. Exot. Moths, p. 198 

 (1841) ; Walker, List Lepid. Ins. Brit. Mus. xi. p. 77 (1857). 

 Aspila, Guenee, Spec. Ge*n. Lepid. Noct. ii. p. 174 (',852). 



The antennae are long, slender, and simple ; the palpi 

 straight, approximating, squamous, and compressed, with the 

 third joint long, slender and beak-shaped; the proboscis is 

 well- developed. The thorax is crested, and the abdomen is 



