SEEICOEIS. 35 



oblique fasciseform shades, one from the middle of the costa to the dorsal margin^ the other 

 before the apex, extending through the cilia above the anal angle : several shining steel-blue 

 spots from the base to beyond the middle of the wing, followed by two or three streaks of the 

 same colour in the apical third. Hind wings fuscous brown ; the cilia variable, brownish or 

 yellowish white. 3 (^ , 2 ? . Expanse of wings 15 millims. 



Siskiyou Mountains, on the borders of Oregon and California, June 1872. 



Sericoris inquietana. (Plate LKVIIT. fig. 5.) 



Psedisca inquietana, WalJc. Oat. Lep. Het. sxviii. p. 378. 



Mixodia? sp., M^Lachlan, Journ. Linn. Soc, Zool. xiv. no. 74, p. 116. 



Palpi whitish grey, projecting scarcely the length of the head beyond it, the middle joint 

 thickened, apical joint depressed, exposed : head and antenuEe greyish fuscous : thorax brownish 

 fuscous in front, greyish behind. Fore wings — with the costa straight ; apex rounded ; apical 

 margin oblique, not indented — whitish grey, streaked and mottled irregularly with brownish 

 scales ; with a brownish mottled basal patch, mixed with fuscous, projecting along the upper 

 edge of the cell, indented below it, and a central fascia of the same colour, of which the inner 

 edge follows irregularly the line of the basal patch ; this fascia has a small sinuous indentation 

 on the projecting portion of its outer edge, above the middle, and is widest on its dorsal half, 

 but narrowed at the costa : the apical portion of the wing is irregularly streaked and mottled 

 with a series of brownish spots, mixed with fuscous scales : cilia greyish white. Hind wings 

 dull dingy grey. Type ?. Expanse of wings 24 millims. 

 Arctic America. Presented by Sir J. Richardson. 



Two specimens of this species, brought by Mr. Hart from the winter quarters in Grinnell Land 

 of the ' Discovery ' in the last Polar Expedition, are mentioned by Mr. M'^Lachlan (Journ. Linn. 

 Soc, Zool. xiv. no. 74, p. 116) as probably identical with specimens in bad condition in the British- 

 Museum collection representing J?e^mio! septentrionana of Walker's catalogue (pt.xxviii. p. 373). 

 He adds that they do not agree with the description of Orthotcenia septentrionana, Curt, 

 (App. Ross's 2nd Arctic Voyage, p. 77). Curtis gives the expanse of the wings of his species 

 as 7 lines, and Walker's specimens under that name measure about 8^ lines, whereas those 

 described by M'^Lachlan (expanding 11| lines) appear to agree with S. inquietana (11^ lines) 

 not only in structure and markings, but also in measurement. 



Walker's SciapMla primariana, measuring 7 lines, is evidently the same species as his 

 supposed septentrionana, Curt., which I venture to think would have agreed with Curtis's 

 description had they been in better condition. 



Packard's descriptions of Penthina tessalana (expanse under 8 lines) and P. fulvifrontana 

 (expanse about 7 lines), in the Proc. Bost. Soc. Nat. Hist. xi. pp. 55, 56, and Clemens's 

 description of Mixodia ? intermistana, Proc. Ent. Soc. Phil. v. p. 140, which must all be closely 

 allied species, appear to agree more nearly with septentrionana, Curt., than with inquietana 

 Walk. 



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