350 



Canadian Butterflies. 



GENUS 1. — DANAis, Boisduval, EUPLOEA, Fahricius. 



Head a little smaller than the thorax ; antennae rather long, 

 with a pretty thick, gradually formed, and slightly curved club.; 

 palpi widely separated, with the last joint minute, globular and 

 ending in a point, the second long and thick, the radical one about 

 one-third of its length, and all the joints straight, rather broad, 

 and thickly clothed with hairs ; abdomen somewhat thin and nearly 

 as long as the posterior wings ; wings large, with the margins a 

 little sinuated, the upper pair triangular, the second pair have in 

 the males towards the anal angle, sometimes a blackish pocket or 

 hollow, and sometimes a very black spot divided by a greyish line 

 in relief, placed at the extremity of the nervure ; anterior tarsi 

 slightly aiticulated, but very indistinct, and scarcely* any project- 

 ing points in the room of the claws. 



All the species have two marginal rows of spots. Some have 

 the ground colour of the wings rufous with the border black, 

 others are black, with the longitudinal lines and scattered spots of 

 a greenish or bluish white, and sometimes of a greenish yellow. 

 The head, prothorax, thorax and breast, spotted with white. 

 The Larvce generally feed on nerium, usdepias, synanchum, and 

 other plants of the same family. The Pupgs are short, smooth 

 and round, and suspended by the tail. 



Two species are found in North America, viz : D. arcMppus and 

 Berenice; the first of these alone occurs in Canada.. The true 

 country of this genus is the Indian Archipelago, China, Bengal, 

 &c. It also inhabits Africa, and accidentally the south of Europe. 

 Species 1. — Danais Archippus. The Storm Fritillary. pi. vi, 

 fig. 1., male, 2, underside. 



a, The Caterpillar^ b, The Chrysalis. 



