Genus Terias 



Early Stages. Unknown. 



Proterpia is found in Texas, Arizona, and Mexico. 



(3) Terias nicippe, Cramer, Plate XXXVII, Fig. 3, $ ; Fig. 

 4, $ ; Fig. 5, var. flava, $ ; Fig. 6, $ , under side; Plate II, Fig. 

 6, larva; Plate V, Figs. 51, 52, chrysalis (Nicippe). 



Butterfly. The plate gives so full a presentation of this com- 

 mon species as to make a lengthy description unnecessary. It is 

 subject to considerable variation. I have specimens of many 

 varying shades of orange and yellow, and a few albino females. 

 The orange form depicted in Plate XXXVII, Figs. 3 and 4, is 

 typical. The form flava is not uncommon. Expanse, 1.50-2.00 

 inches. 



Early Stages. These are not as well known as they should 

 be in view of the excessive abundance of the insect in long-set- 

 tled parts of the country. The caterpillar feeds upon Cassia in 

 preference to all other plants, but will eat other leguminosse. 



Nicippe is very rare in New England, but is common south 

 of latitude 40 as far as the Rocky Mountains, and ranges over 

 Cuba, Mexico, and Guatemala, into Venezuela and even Brazil. 

 It fairly swarms at times in the Carolinas, Tennessee, Kentucky, 

 and southern Indiana and Illinois. I have encountered clouds 

 of it on the wing near Jeffersonville, Indiana, and thence north 

 along the lines of the Pennsylvania Railroad as far as Seymour. 

 It is not common in western Pennsylvania, but in former years 

 was taken rather frequently about Pittsburgh. 



(4) Terias mexicana, Plate XXXVII, Fig. 7, $ ; Fig. 8, ? , 

 under side (The Mexican Yellow). 



Butterfly. Easily distinguished from all other species in our 

 fauna by the pointed hind wings, margined on the outer border 

 with black, and by the heavy black border of the fore wings, 

 deeply excised inwardly, recalling the fore wing of the species 

 of the genus Meganostoma. Expanse, $, 1.75 inch; $,1.85 inch. 



Early Stages. We do not, as yet, know much about these. 



T. mexicana is very common in Arizona, and occurs also in 

 Texas. It is abundant in Mexico. 



(5) Terias damaris, Felder, Plate XXXVII, Fig. 9, <$ ; Fig. 

 10, $ , under side (Damans). 



Butterfly. Allied to the preceding species, but readily distin- 

 guished from it by the less deeply excised outer border of the fore 

 wing, by the fact that the black outer margin of the secondaries 



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