SATYRm^. 173 



emitted before end of tlie cell ; discocellulars loug, slightly concave, radial from their 

 middle ; two upper median branches from end of the cell. 



Male with a tuft of long hairs on upperside of the hindwing, radiating from 

 below the base of the subcostal vein, and overlapping a glandular patch of scales 

 situated below the first subcostal branch, this branch being also slightly swollen 

 beneath, all encompassed by the broad costal nacreous area. On the underside of 

 the foreiving, surrounded by the posterior nacreous area, is a glandular patch of 

 scales situated upon the middle of the submedian vein. 



Body slender; palpi porrect, slender, flattened, finely pilose beneath j legs 

 slender. 



Eyes hairy. Antennce slender at the tip. 



Eggs. — "White, shining, semitransparent." 



Cateepillae at birth. — " Pale green. Head black, bearing two very obtuse 

 black horns on the crown ; caudal processes very small." 



Adult Caterpillar. — " Fusiform, the whole body very rough or rugose, thickly 

 set with minute tubercles. Head armed with two divergent, blunt conical horns ; 

 head and horns thickly set with small rough tubercles, and face covered with 

 short hairs. Anal segment furnished with two short slightly-divergent pointed 

 processes." 



Chrysalis. — Suspended by the tail. " Smooth, thorax very convex and constricted 

 at base of the abdomen" {de Niceville). 



Type. — C. Drusia (Mineus). 



Seasonal Forms and Siiiilaritt op the Species. — The species of Calysisme, as 

 has been proved by the breeding of G. visala and G. perseus by Mr. L. de Niceville, 

 have two forms of individuals in the annual broods that occur in each species, a 

 wet-season form, and a dry-season form. Both these forms had previously been 

 separately named and described, and considered hitherto to be distinct species, one 

 from the other. The two forms, as hereinafter described, much resemble each other 

 on the upperside of the wings, but on the underside the two forms are very dis- 

 similar, the wet-season form being marked with a transverse pale band, and pro- 

 minent ocelli upon the outer border ; these characteristic markings being, in the dry- 

 season form, only represented by a more or less defined darker line bordering the 

 basal area, and the ocelli are undeveloped, or represented only as small black spots 

 with a white central dot, and these spots being generally more or less obsolescent. 



The wet-season forms of the various species, however, are much alike, both 

 above and below, and the dry-season forms of the various species have a similar 

 resemblance, one to that of the other ; consequently, this similiarity of both the upper 

 and underside makes it extremely difficult to discriminate one species from another, 

 and it is mainly by the aid of the position, size, and colour of the glandular 



