BUTTERFLIES OF MONTANA. 



4.-, 



Egg The eggs are ovate, conical, broadly flattened at the base and 

 slightly truncated at the top. 



Caterpillar On emerging from the chrysalis, the head is not larger 

 than the body. The body has a few scattered hairs on each segment. 

 On reaching maturity the head is small, the body large. 



Chrysalis It is re'.atively short and thick, rounded, w.'th v?r;- few 

 projections. 



Key to Genera. 



Palpi remote, not extending much beyond the head; discal cell of 

 hind wings closed ; a black spot on vein of hind wings of male. Anosia 



Genus ANOSIA, Hubner. 



Butterfly Large seized, fore wings greatly produced at the apex. 

 Egg The egg is ovate conical, ribbed with many cross-lines. The 

 eggs are pale green in color. 



Caterpillar Cylindrical, fleshy, transversely wrinkled, with long, 

 slender filaments. 



Key to Species. 



Color fulvous; veins black plexippus 



THE MONARCH BUTTERFLY, Anosia plexippus !_., Fig. 39. 



Fig. 39. Anosia plexippus, From water color by Mrs. Edith Ricker. 



Butterfly Expanse of wings 3.75-4.5 in., 9G 114 m m. Upper sur- 

 face tawny red or fulvous, with the veins heavily marked with black, a 

 black terminal border containing two rows of white spots, a complete 

 and partial row of white or lighter fulvous spots in a black space beyond 

 the cell of the fore wings. The males have the wings less broadly bor- 



