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STUDIES IN THE GENUS THANAOS 



This is the largest species known to us in the genus. It is separable from 

 N. juvenalis and properiius by its darker color, less distinct ornamentation, 

 less rounded wings, absence of the white spots of secondaries in cells six and 

 seven. From A^. naevius with which it is associated, it is distinguished by 

 its larger size, more distinct markings and contrasting lighter shade of the 

 palpi." 



Distribution. — From Connecticut to Texas and westward to 

 Missouri, Colorado and Arizona. 



Records. — -Amherst, Foxboro, Andover and Boston, Mass.; Avon, Hart- 

 ford County, Connecticut, (R. C. Williams); New Haven, Connecticut; 

 Beaver Dam, Pike County, Penna., VII, 17; Little Log Tavern, Pike County, 

 Penna., VII, 20; Childs Park, Pike County, Penna.; Philadelphia, Penna., 

 VII, 17; Elizabeth, N. J., VIII, 8; Jamesburg, N. J., VII, 4; Mount Holly, 

 N. J., VII, 4; Westville, N. J., IV, 30; Woodbury, N. J., V, 4; Atco, N. J., 

 IX, 4; Manumuskin, N. J., V, 8; Maryland; District of Columbia; Cranberry, 



Thanaos hor alius Scudder and Burgess, 



N. C, VII, 4 to 8, (Thomas) ; Wilmington, N. C, III, IV, 26, Isle of Pines, 

 South Carolina, VII; Thomasville, Georgia, III, 18 to 21, (M. Hebard); 

 Central Florida; Indian River, Florida; Georgiana, Florida; Miami, Florida, 

 I, 4, II; Nashville, Tennessee, VI, 20; Dakota; Omaha, Nebraska, VII, 

 IX, X, (Leussler); Eureka Springs, Arkansas, VII; Mississippi; Round 

 Mountain, Texas, IX, 4; Durango, Colorado, VII, (Oslar); Prescott, Ari- 

 zona, VII, 8 to VIII, 4. 



The type localities were New England and Texas. 

 This is a very common species in southern New Jersey. It has 

 been confused with juvenalis. 



