NOKJ'H AMERICAN LEPIDOPTKRA. 185 



X. stragula Grote. 



1864.— Grote. Proc. Ent. Soc. Phil. vol. iii, p. 93. 

 race mail it Oil Neiiinoegen and Dyar. 



1893.— Neumoeu;en and Dyar, Jour. N. Y. Ent. Soc. vol. i, p. 35. 

 Thorax and fore vk^iugs slate-gray, replaced by ocherous and brown along in- 

 ternal margin and subtenuinally. Two deep brown, parallel stre.ak.s at base, 

 below median vein and on internal margin respectively. Transverse anterior 

 line waved, ocherous, bordered with brown. A linear discal mark surrounded 

 with pale. Transverse posterior line obsolete, except at internal margin. Sub- 

 terminal line ocherous, waved. Hind wings white in the male, brownish gray 

 in the female, darker along the outer border. Expanse 40 mm. 



Hab. — Atlantic States, westward. 



The race m,amton differs in its much paler colors. 



Hab. — Rocky Mountain region. 



X. pacifica Behr. 



1892.— Behr., Proc. Cal. Acad. Sci. (2) vol. iii, p. 206. 

 Hab. — Mountains of California and Pacific Northwest. 

 Closely allied to .stragala, but darker throughout. 



51. georgica Herrich-Schaffer. 



1855. — Herrich-Schaffer, Ausser. Scliinett. i, f. 384. 

 Pal3 gray, with yellowish tinge at base of fore wings, and irrorate with black. 

 T. a. and t. p. lines distinct, black, dentate. A linear black discal dot; tooth 

 black. A series of subterniinal, intervenular, black dashes, obsolete centrally; 

 the one between veins 1 and 2 (anal and viia) reappears inside t. p. line. Fringe 

 spotted with black. Hind wings white. Expanse 40 mm. 



Hab. — Atlantic States, westward. 



N. tortuosa Tepper. 



1881.— Te|)per, Bull. Brook. Ent. Soc. vol. iv. p. 2. Drynobia. 

 Much like N. georgica. Primaries and thorax dark stone-gray, slightly tinged 

 with yellowish. T. a. and t. p. lines as in georgica, but uniformly black, very 

 faintly whitish bordered; a basal and snbapical longitudinal black dash and one 

 near internal angle, discal dot black ; white dash at base of wing and on side of 

 thorax. Secondaries whitish, with brownish tinge. Expanse 35 mm. 



Hab. — Rocky Mountain region. 



Genus JVadata Walker. 

 1855.— Walker, (Jat. Brit. Mus. Pt. v, p. 1062. 



II Alastor Boisduval. 

 1S69. — Boisdiival, Ann. Ent. Soc. Belg. vol. xii, p. 87. 



Synopsis of Forms. 



Color buff, orange-huflf to red. 

 General color buff. 



Excavations on external margin filled in with white gibbosa. 



Fringe uniformly ocherous var. (loiibleday i. 



Color deep orange-red race rtibript'iiiiis. 



Color straw-yellow. 



Wings without black shades race oregoiieiiiiiis. 



A black shade at end of cell var. belireiiisii. 



TEANS. AM. ENT. SOC. XXI. (24) JUNE, 1894. 



