SO DAXAIDJE. 



Genus I. EUPLCEA Boisd. 

 Boisd. Faune de I'Oceanie, 93. (1832). 



Euplcea Fab. Ilorsf. 



Danaus Latr. 



Danais God 1 . 



Teepsichrois, Crastia, Salpinx, Didonis, Htibn. 



Danais, M l Leay, King's Survey of Australia, II. 461. (1827.) 



Antennae rather more than half as long as the whole length of the hody, gradually clavate. 



Anterior Legs with the femur and tibia about equal in length ; the tarsus shorter, of the male 

 cylindric, rather tapering to a point at the extremity; indistinctly biarticulate ; second joint 

 about one third the length of the first, both clothed with scales and hairs ; of the female, clavate, 

 quadriarticulate ; the first joint longer than the rest combined, much broadest at the apex, where it 

 has a stout spine on each side ; second and third short, furnished with a tuft of hair on each side 

 near the base, and a spine at the apex ; the fourth joint minute, furnished with a tuft of hairs. 



Middle and Posterior Legs strong, the claws rather stout, curved. The paronychia divided into two 

 lacinias ; the outer elongate, lanceolate, hairy, as long as the claw ; the inner not quite equal in 

 length to the outer, more hairy, elongate, lanceolate, the apex curving inward over the base of the 

 pulvillus. Pulvillus not so long as the claws, jointed ; the second joint broad, corneous. 



Euplcea differs from Danaus in having a very distinctly developed pulvillus and paronychia to the hinder feet, and 

 the antenna^ generally rather longer. From Ilestia it differs in having the antenna; more distinctly clavate, and the 

 anterior feet of the female of a different form. 



The species of which it is composed are generally insects of rather large size, of a dark fuscous brown or black, 

 spotted or streaked with white and light blue, and often having especially in the males brilliant blue reflections on the 

 upper surface. The thorax (especially below) and the head are always dotted with white. The anterior wings arc 

 triangular, sometimes elongate, the anterior margin rounded, the outer sometimes rounded, sometimes sinuate, slightly 

 emarginate, the inner slightly cmarginate in the females, in the males mostly rounded, produced so as to cover a 

 considerable space of the posterior wings, a structure carried to the greatest extent in Euplcea Treitschkei, figured on 

 our eleventh plate. Sometimes the males have one or more short vittas on the inner margin of the anterior wing, 

 composed of scales of a paler colour and rather different form, and differently placed, so as to have a dull somewhat 

 chalky appearance. The posterior wings are somewhat obovate, the inner margin much shorter than the anterior, the 

 abdominal fold ample. The portion which in the males is covered by the projecting inner margin of the hind wings is 

 often clothed with scales of a very singular form. They are elongate, hair-like, rather broader at the base, terminating 

 in an oval expansion, giving them very much the form of the antenna; of most species of Pieris, In other species the 

 scales on this portion differ chiefly in size from those of the other parts of the wing. The sexes of this group differ 

 sometimes materially in the colour of the posterior wings, those of the males are of a nearly uniform dark colour, but 

 those of the females are streaked longitudinally with white, giving them a strong resemblance to some species of the 

 next genus. 



