31 



of fine lines extending from apices to inner margin, diverging 

 inferiorly ; hindwings black with a subterminal row of wedge- 

 shaped yellowish spots. La re a on Button weed (Spermacoce 

 t/Jalra). Rare in Canada and Eastern States, more common 

 in the South : it has at least two congeners : 1>. Robiiisoiiii, 

 Grote, in Cuba and I>. Falco, Walk., in Mexico; com- 

 parative studies must be made with other forms referred by 

 Butler to Choerocampa, a genus with European types. 



Ochs. 



Head moderate, untufted; tongue about as long as the 

 body ; antennae enlarging to tips which are provided with 

 a slender bristly hook: abdomen smooth, cylindrical, stout; 

 tibiae unarmed ; fore tarsi with a row of curved spines along 

 the outside ; wings entire, evenly margined. 



C'liaiuaciicrii. Harris. Represents the European 

 Galii, of which it seems a variety. The American specimens 

 differ by a warmer tint on central fascia of forewings, which 

 fascia is not excavated inwardly at base and not so continued 

 superiorly, while our species has a distinct apical black 

 streak: the hind wings more purely roseate. Not uncommon. 

 Canada to Middle States. In Cuba I>. C'alverleyi takes 

 its place. Larva on grape and Evening Primrose as well 

 as Epilobium. 



Uiicata. Fabr. Differs from the European Livornicn 

 by a third, central white stripe on the tegulae and by the 

 abdominal markings. Olive brown with a buff stripe on tore- 

 wings from apex to base and the veins marked with white ; 

 hindwings black with a central reddish band enclosing a 

 white spot near the margin. Very common, flying also in 

 the middle of the day on flowers. Canada to West Indies 

 and California. Larca on PorfnJacra and a large number of 

 plants, veiy variable in color, caudal horn yellowish and 

 rough. May to September; double brooded. 



Pltilampeliis. Harris. 



Allied rather to Dfih'pJiihi, though differently colored, 

 the head being also more prominent, the tongue longer: the 



