(1) Grapta interrogationis (Fabricius;, tormfabricii Edwards, 

 Plate XXV, tf (The Question-sign). 



The largest species of the genus in our fauna. Dimorphic, 

 the upper sides of the hind wings in the form fabricii being 

 fulvous with dark markings, those of the form umbrosa Lintner 

 being uniformly dark, except at base. In the Middle States 

 double-brooded. The second brood hibernates in the winged 

 form. Expanse 2.50 inches. 



Found throughout Canada and the United States, except 

 on the Pacific Coast. 



(2) Grapta comma (Harris), form dry as Edwards, Plate XXVI, 

 d 1 (The Comma Butterfly). 



Larvae feed on nettles; some are almost snow-white. The 

 species is dimorphic. In the form dryas Edwards the hind 

 wings are dark above, in the form harrisi Edwards they are 

 lighter in color. Expanse 1.75-2.00 inches. 



The range is much the same as that of the Question-mark. 



(3) Grapta faunus Edwards, Plate XXVII, 9 (The Faun). 

 Readily recognized by the deep indentations of the hind 



wings, the heavy black border, and the dark tints of the under 



93 



PL. XXVI 



