Genus Grapta 



and when the first warm winds of spring begin to blow, it may 

 be found at the sap-pans in the sugar-camps, sipping the sweets 

 which drip from the wounded trunks of the maples. It ranges 

 all over the United States, except the Pacific coast, and is com- 

 mon throughout Canada and Nova Scotia. 



(2) Grapta comma, Harris, form dryas, Plate XIX, Fig. 3, $ ; 

 form harrisi, Edwards, Fig. 4, $ ; Plate III, Fig. 38, larva ; Plate 

 IV, Figs. 27, 29, 30, 39, 46-48, chrysalis (The Comma Butterfly). 



Butterfly. — Dimorphic, in the form dryas with the hind wings 

 heavily suffused with black, in the form harrisi predominantly 

 fulvous. Expanse, 1.75-2.00 inches. 



The caterpillars feed upon the Urticacece, and are very com- 

 mon upon the nettle. They vary greatly in color, some being 

 almost snow-white. This species is found throughout Canada 

 and the adjacent provinces, and ranges south to the Carolinas and 

 Texas and over the Northwestern States. 



(3) Grapta satyrus, Edwards, Plate XX, Fig. 1, $ ; Fig. 2, ? , 

 under side; form marsyas, Edwards, Plate XIX, Fig. 14, 6 ; Fig. 

 15, $, under side', Plate III, Fig. ^}, larva; Plate IV, Figs. 41, 

 42, chrysalis (The Satyr). 



Butterfly. — The species is so accurately depicted in the plates 

 that a description is hardly necessary. The form marsyas is 

 smaller, brighter, and with the dark spots on the upper side of 

 the hind wings reduced in size. Expanse, 1.75-2.00 inches. 



The food-plant of the caterpillar is the nettle. It occurs occa- 

 sionally in Ontario, and thence ranges west, being not uncommon 

 from Colorado to California and Oregon. 



(4) Grapta hylas, Edwards, Plate XIX, Fig. 7, 6 ; Fig. 8, S , 

 under side (The Colorado Angle-wing). 



Butterfly. — The butterfly closely resembles G. silenus on the 

 upper side, but may easily be distinguished by the uniform pale 

 purplish-gray of the lower sideof the wings. Expanse, 2.00 inches. 



The early stages are unknown. The insect has thus far been 

 found only in Colorado, but no doubt occurs in other States of 

 the Rocky Mountain region. 



(5) Grapta faunus, Edwards, Plate XIX, Fig. 12, 8 ; Fig. 13, 

 $ , under side; Plate III, Fig. 32, larva; Plate IV, Figs. 31, 33-35, 

 chrysalis (The Faun). 



Butterfly. — This species is readily recognized by the deep 

 indentations of the hind wings, the heavy black border, and the 



165 



