227 



Brunswick, Me., common in dry pine-woods and open fields with scat- 

 tered pine-bushes, from the 10th of June until earl} - in July, in company with 

 Ematurga Faxonii and F. truncataria. Alton! Boston and in Albany, N. Y., 

 from June 1 to 15 (Morrison). Its flight is rather weak and vacillating. 



Portland, Me. (Morse); London, Canada (Saunders); Dublin, N. H. 

 (Leonard, Harris Coll Bost. Soe. Nat. Hist); Roxbury, .Mass., May 

 (Angus); Boston, Mass. (Minot and Sanborn, Mus. Most. Soc. Nat. Hist.); 

 Amherst, Mass. (G-oodell) ; Albany, N. Y., May 25 to dune 12 (Lintner 

 and Morrison); Anticosli Island, Gulf of St. Lawrence (Coll. II. Edwards,)"; 

 "St. Martin's Falls, Albany River, Hudson's Bay Terr." (Walker). 



This common and easily recognized species differs from all the others 

 of the genus by the white ground color of the body and wings. It seems to 

 be common in the Northeastern States. It is easily divided into two forms: 

 a, small, and with short wings, the Tephrosia notataria of Walker and 

 F. quadripunctata of Morrison ; and, h, jidon'iata, a form with long wings, the 

 outer edge not bent, rather long, and the wings less heavily banded and 

 spotted with brown ; but there are individuals before me which differ in these 

 respects, and indicate two interesting races, which show signs of intermingling. 

 It should also be observed that I have taken both races in the same field 

 and on the same days. In the markings, it varies much as do all the species 

 of the genus. In some specimens of variety Jidoniata (Minot' s bicoloraria) 

 there are no bands, and the wings beneath are free from large spots and 

 bands, with only scattered brownish scales. Sometimes, on each side of the 

 discal spot on the fore wings, there is a dark brown line much deeper in tone 

 than the brown shade which it limits. Rarely, the hind wing is densely 

 mottled with brown. The four large, round, equal, discal dots are always 

 distinct, and farther separate the species from its allies. 



PERCONIA Hiibner. Plate 2, fig. 10. 



Pcrconia Hiibn. (ia part), Vera., 29G, lsis. 



Fidonia Treits (in part), Schm. Eur., vi (i), 262, 1827. 



H.-Scb. (in part), Schm. Eur., iii, 84, 1847. 



Lederer (in part), Verb. Bot. Zool. Ges. Wien, 229, 1853. 



Guen. (in part), Poal., ii, 151, 1857. 



Walk, (in part), List Lep. Het. Br. Mus., xsiv, 1031, 1862. 



Head with the clypeus not very full, as in Fidouia, or raised into a square 

 area bounded by a ridge, with a large, sharp, narrow-toothed, mesial carina 

 projecting beyond the scales. Palpi long, broad, porrect, extending half their 



