71 



ARGYRIA NIVALIS. (Plate Y., fig. 1.) 



. Phalcena Pyralis nivalis Drury, Vol. III., Nat. Hist., p. 25, Plate 



XIV., tig. 4 (1773). 



Eydrocampa (?) nivalis Westwood's Drury (1837). 

 Geometra argentata Emm., Nat. Hist. N. Y. Ag., Vol. V , Plate 



XL. (1854). 



Urola michrochysella Walk., Lep. Het., Vol XXVII., p. 181 (1863). 

 Catharylla nummulalis Zell , Chil. et Cram., p. 51 (1863). 

 Argyria argentata Grote, Bull. Buf. Soc., Vol. II , p. 166 (1874). 

 Argyria nivalis Fern., N. A. Ent., p. 100 (1880). 



Expanse of wings, 18-22 mm. Head, palpi, thorax and 

 fore wings white, with a satin lustre. The outside of the 

 palpi, the antennas, a stripe behind the eyes, the basal edge 

 of the costa, the terminal line and a dot near the middle of 

 the hind margin, dark reddish brown. Fringe and anal 

 tuft yellowish brown. Hind wings and abdomen pure white, 

 with a silky lustre. 



Habitat. Ontario, Maine, New Hampshire, Massachu- 

 setts, New York, New Jersey, Pennsylvania, District of 

 Columbia, Florida, Texas, Missouri, Ohio, Illinois. Food 

 plant and early stages unknown. This comparatively com- 

 mon species is found in grass-lands, flying about in company 

 with, and much like, some of the species of Crambus, and 

 it is very probable that it feeds on grass. 



ARGYRIA ARGENTANA. (Plate V., fig. 2.) 



Tortrix argentana Martyn, Psyche, Plate XXXII., fig. 95 (1797). 

 Argyria nummulalis Hub., Zutr., figs. 185, 186 (1818). 

 Urola subaimscens Walk , Lep. Het., Vol. XXVIL, p. 182 (1863). 

 Catharylla fuscipes Zell., Chil. et Cram., p. 51 (1863). 

 Argyria nummulalis Fern., N. A. Ent., p. 100 (1880). 



Expanse of wings, 19-23 mm. Head, palpi, antennae and 

 a stripe backwards from the top of the head bright rust red ; 

 sides of the thorax and the fore wings white, with a satin 

 lustre ; the hind border orange yellow ; basal edge of the 

 costa and terminal line dark reddish brown ; fringes much 

 lighter than the terminal line ; abdomen and hind wings very 

 pale fuscous, with a silky lustre. 



Habitat. Pennsylvania, Illinois, Georgia, Florida. Food 

 plant and early stages unknown. 



