•2HI 



Length ol' liodv, c^', 0.43, 9, 0.50; ol' I'orc wings, J, 0.45, 9, 0.55; 

 expanse of wings, 1.1 inches. 



Texas, August 1 to Srptemher 30 (Helfrage) ; Dallas, IV-x., July (Boll, 

 Mus. Peab. Acad. Sc). 



Dithers from any otiier species known to nie by llie conspi(-uous s-shapcd 

 line in outer third of lix-e wing. 



JSemiothisa calu-okni.vta Packard. I'iate 10, fig. 10. 



Macaria californiaria Pack., Proc. Host. Soc. Nat. Hist., xiii, 392. 1871 ; xvi, 27, 1674. 

 Macaria pallidata Pack., Fifth Rep. Poab. Acad. Sc, 61, lS7;i. 



8 (? and 8 9. — Pale whitish-gray. Orbits and palpi ling(;d with ochre- 

 ous. Fore wings with four costal spots, from wiiich more or less obsolete 

 lines run in a taint series of dots across the wing ; second spot the broadest, 

 the discal dot torming a part of the line ; third spot forming with a part of the 

 line proceeding from it a large irregular s, extending to the middle of tlie 

 wing, tiio line continuing l)eyond in an interrupted scries of fine dots, and 

 with a supplementary spot at the end of the s. Half-way between the s and 

 the apex is a fourth small costal dot. Hind wings with an obscure discal 

 spot, and a snbniarginal transverse shade; the wing is faintly mottled with 

 smoky dots. Beneath, both wings with fine transverse subochreous spots; the 

 lines appear beneath of a smoky oclireous, the third line being less sigmoid 

 than above, as it is curved outward to the angle, and then goes oblicpiely and 

 in a straight course to outer third of inner side. Discal dots distinct, as 

 above. Hind wings with a distinct outer subochreous broad band near the 

 edge of the wing. A row of dark dots along edge of both wings. 



Length of body, <?, 0.32, 9, 0.40; of fore wings, c?, 0.55, 9, 0.4.S ; 

 expanse of wings, 1.00-1.10 inches. 



Goose Lake, Siskiyou County, Cal. (J. Hollenian); Sanzalilo, Clal., Sep- 

 tember 14 (Behrens) ; California (Edwards); Dallas, Tex, July (Boll); 

 Texas, April, May, September (Belfrage); Lawrence, Ivans. (Snow); (ilcncoe, 

 Nebr. (G. M. Dodge). 



It may be known l)y the s-like third costal spot, tlu^ more yellowish tint 

 ot the under side of the wings, and by the presence of an outer shade on the 

 hind wings. The sigmoid spot is much like the bent spot in the middle of the 

 wing in Thamnonoma wavaria. It is a common moth west of the Mississippi, 

 extending from Kansas to Texas, and common on the Pacific coast. It varies 

 a good (leal within these limits. In a Nebraska specimen, llu! cxtradiscal 



