n6 ENTOMOLOGICAL NEWS. [March, '13 



L. floridensis. 



The dark chestnut-brown floridensis follows the typical 

 dark form of D. berenicc just as obsoleta follows strigosa. A 

 similar uniform shade of dark brown prevails. In this case the 

 white spots have disappeared entirely on the upper side of the 

 male's secondaries and show but faintly on the female's. We 

 may surmise that as the white spots showed too vividly on the 

 very dark coloration of this species they were eliminated as 

 much as possible. They remain on the primaries, where they 

 are needed to mimic the spots on berenice. 



D. plexippus and L. archippus. 



These well-known butterflies have been described so many 

 times that very little need be said about them. Concerning 

 the bar across the secondaries of archippus, is it possible that 

 archippus, like obsoleta, has attempted to imitate the discocel- 

 lulars of its model? 



Archippus has been able to make a more perfect imitation of 

 its model than have the others for the reason that plexippus is 

 black-veined throughout. If strigosa and berenice were sim- 

 ilarly veined, the resemblance of their mimics would doubtless 

 be as striking when a detailed comparison was undertaken. 



Bionomic Features of the Limenitis Group. 



The dark, white-barred Admirals are essentially frequenters 

 of the wooded districts. They may be found flitting about the 

 open spaces of the deep woods and along the edges, but as a 

 rule do not venture far out in the open. Their flight is quick 

 and their attitude alert and vigilant. 



The brown Admirals seem to have taken on the habits of 

 their models as well as their coloration. Ar chip pus may be 

 found balancing its slow flight far out in the open meadows 

 and perched on the flowers with wings folded in much the 

 same manner as plexippus. 



The early stages of obsoleta are passed among the willows 

 along the Verde and Salt Rivers in Arizona and probably 

 along the other water courses of this country also. I had the 

 good fortune to run into a swarm of beautifully fresh speci- 



