SPILAKCTIA. — DONDERA. 79 



Spilarctia castanea. (Plate CLVIII. figs. 26, 27.) 



Expanse, ^ Ih, ? ]j.\ im'li. 



Male. Fore wing ruddy cbcstnut-brown, with blaclc markings ; the costa narrowly 

 black; two small subbasal spots on costal and subcostal nervures; then an irregular l)and 

 from costa to median nervurc, below which is a small spot, below which again is an irregular 

 blotch on the inner margin reaching to the middle of internal interspace j a small spot at 

 upper end of cell, just lieyond which are two superposed spots from the costa; from near 

 the apex to centre of inner margin is an exceedingly irregular band of patches, varying in 

 shape in different specimens, and taking the form of spots near the apex, then a large blotch 

 from discoidal to first median nervule, then much constricted in interuo-median interspace, 

 and expanding again on inner margin, when it joins the antemedial blotch. Cilia black. 

 Hind wing dark brown, with a black lunule at end of cell. 



Female. Fore wing paler chestnut, with the markings reduced to a small black subbasal 

 spot ; a spot on each side of submediau vein one- third from base, the one above it largest; a 

 minute spot at end of cell, with another above it below the costa ; an oblique baud of five 

 black spots from third median nervule to centre of iuner margin. Cilia of same colour as 

 the wiug. Hind wing rosy, with a large black spot at end of cell ; two others between it on 

 inner margin, which are sometimes almost obsolete ; a series of seven large black sub- 

 marginal spots between the nervules, the one between second and third median uervulcs 

 sometimes obsolete. 



Antennae of both sexes dark brown; thorax chestnut-brown; abdomen rosy red, with 

 dorsal and lateral series of black spots. 



LITHOSIINJE. 



Dondera alba, Moore. (Plate CLVII. fig. 25.) 

 Dondera alba, Moore, Lep. Ceyl. ii. p. 48. 



Expanse ^ 2 inches. 



Male. Similar to the female, but with the inner margin of fore wing much shorter, so 

 that the outer margin is much more oblique. The hind wiug has the inner margin much 

 shorter and the outer margin with a deep scallop from anal angle to one-fourth from apex, 

 somewhat as in the male of Argina, but much more extensive, and with the anal angle 

 rounded instead of pointed. Antenna similar to those of female. 



Pwpa. Yellow ; a broad black band encircling each abdominal somite ; black spots on 

 thorax and streaks on wing-cases. 



Found enveloped in a slight web under a ledge of rock. The hairs of the larva were 

 mixed with the web, and the cast skin of the larva was present ; its colours had apparently 

 been as follows: head fulvous, the other segments dark; a dorsal series of large, round. 



