2o() 



wiiiys being uhsolele, more disfiiict on tlic hind wings, wlicic there are two 

 lines, and liv tlic three costal (riangular spots as well as (he lai'ge discal spot, 

 and another large brown patch on the inner edge of the Tore wing; while 

 beneath, the wings are much more strigated than above. The New York 

 and Vanconvi'r's Island examples present no differences in size or markings. 



ThamnonojA flavic.\ria. up. ttar. I'late 13, fig. 40. 



2 <? and .") 9. — Strnetnrally, this species is closely allied to 7. hnnnicdrid 

 and (irgiUacearia, bnt the fore wings are a little more falcate and the hind 

 wings more ])rodnced than in these species, tiie hind wings of the female 

 beinsr considerably more so than in the male. Antennte of the mal<^ well 

 pectinated; l)ody and wings bright yellow-ochreons, the hind wings lieing con- 

 colorons with the anterior pair. Fore wings yellow, tpiite thickly dnsted. 

 witii brown; t()nr well-marked costal spots, the third being the largest, the 

 fourth narrower and usually forming part of the extradiscal line, which is 

 sinuous, and toward the inner margin accompanied by a l)road shade. Just 

 beyond the middle of the line is either a single or twin patch, often well 

 defined and square. In the female, there are four suhparallel lines, the three 

 inner costal spots sending lines across the wing. In both sexes, the discal 

 dots are ve y distinct. In the male, there are traces of a single submarginal 

 line; l)ut. in the female, there are traces of two, one extradiscal and one sub- 

 marginal. The under side of the male is concolorous with the- upper side, 

 wiiile the discal dots are very distinct, and there is a broad, brown, submar- 

 giu'al, indistinct band, common to both wings ; while, in the female, there are 

 traces of an extradiscal line, common to both wings. 



Length of body, <? , 0.46, 9,0.52; of fore wings, c?,(>.5!S, 9,0.58; expanse 

 of wings, 1.15 inches. 



Manitou, Colorado, July 13-16, common, flying about the clifi's in 

 William's Canon ; common in gardens July 21, Salt Lake City, and in fields, 

 Farmington, Utah, July 20 (Packard, Haydeu's Survey). 



This s])ecies differs from T. sulphuraria in the less decided straw-yellow 

 luje, and. the more decidedly falcate wings, and the heavier, darker nuirkings. 



TiiAMNONOMA BRUNNEARiA Lederer. Plate 9, fig. fi3. 



•' (!eom<-tn( hnnnicata TliiiiiU., Dis.s. Eiit., i, !t, 1784.'' 



" Geoniv-tra pimiaria Hiibn., Schin. Eiir., tab. 2-1, lig. VM) (after 1797)." 



" Genmetrn (ininqiuirin Miibii.. Sclini. Eiii'., t.-i.b. 100, tii;. .'■>iri, :.17. g. :iftpr 1797." 



