12 

 NYMPHALID^E. 



DANAIN.E. 

 DANAIS, LatreiUe. 



20. (94.) DANAIS ARCHIPPUS, Fab. The Milkweed Butterfly. The 



Monarch. 



Danais archippus, Harris, Ins. Inj., 1862, 280. 

 Morris, Lep. N. A., 1862, 38. 

 French, Sev. Rep. State Ent. 111., 1878, 149. 

 Id., But. E. U. S., 1886, 144, figs. 36-39. 

 Packard, Guide, 8th Ed., 1883, 251. 

 Blatchley, Ind. Farm., 1886, Oct. 30. 

 Anosia plexippus, Scudder, But. E. U. 8. and Can., 1889, I, 720; 



III, pis. 1, 16, 18, 64, 74, 83, 87. 



One of the largest and most common butterflies throughout the State. 

 Most abundant about June 1 and September 10, when the two broods of 

 the season, respectively, come forth. A few faded individuals may be 

 seen in April as the imago hibernates. This is one of the few species 

 the members of which flock together at certain periods, usually about 

 September 20. These swarms seem to be composed almost wholly of 

 males, and in Indiana gather about the leaves and branches of beech 

 , trees. The reasons for these gatherings are, up to the present, unknown. 

 Food plants of larvae, the various species of milkweed (Asclepias). 



NYMPHALIN^E. 

 AGRAULIS, Boisduval and LeConte. 



21. (100.) AGRAULIS VANILLA, Linn. 



Agraidu vaniUce, Morris, Lep. N. A., 1862, 40. 



French, But. E. U. 8., 1886, 148. 



% udder, But. E. U. 8. and Can., 1889, III, 

 fl|4. 



A handsome species, *biclLinhabits the Southern States, and has been 

 taken in Indiana onlv iu. Vanllerburgh County. 



The food plant of hjrv.v i> the beautiful Southern Passion Flower, 

 Passiflora incarnata, L. 1 'Ntso found in this State doubtless fed upon 

 the allied species, Passiflora hit-ea, L. 



