192 PROCEEDINGS OF THE NATIONAL MUSEUM vol.90 



In tliis complex the moths are so much alike superficially that it is 

 almost impossible to separate the various species except by a comparison 

 of genitalia. The species are widespread throughout the far west 

 and each appears to be confined to its particular food plant and re- 

 stricted geographical area. 



I have not included togata in the keys because of my inadequate 

 knowledge of the species and because of the uselessness of trying to 

 separate the species of this group entirely on coloration. 



DEPRESSARIA GROTELLA Robinson 



Plate 34, Figtjees 192-192b ; Plate 47, Fiqukes 277, 277a 



Depressaria groiella Robinson, Ann. Lye. Nat. Hist. New York, vol. 9, p. 157, pi. 

 1, fig. 10, 1870. — Walsingham, Proc. Zool. Soc. London, 1881, p. 312. — Coquil- 

 LETT, Papilio, vol. 3, p. 98, 1883.— Busck, Proc. U. S. Nat Mus., vol. 24, p. 748, 

 1902. — Meyeick, in Wytsman, Genera insectorum, fasc. 180, p. 172, 1922. — 

 Forces, Cornell Univ. Agr. Exp. Stat. Memoir 68, p. 242, 1923. 



Depressaria groteella Chambers, U. S. Geol. Geogr. Surv. Terr. Bull. 4, p. 138, 

 1878. — Riley, in Smith, List of the Lepidoptera of Boreal America, No. 5264, 

 l§9l._BuscK, in Dyar, U. S. Nat. Mus. Bull. 52, No. 5890, 1903.— Keaefott, in 

 Smith, List of the Lepidoptera of Boreal America, No. 6433. 1903.— Busck, 

 Proc. U. S. Nat. Mus., vol. 35, p. 200, 1908. — Barnes and McDunnough, Check 

 list of the Lepidoptera of Boreal America, No. 6479, 1917. — Traver, Psyche, 

 vol. 26, p. 78, 1919. — Barnes and Btjsck, Contr. Lepid. North America, vol. 4, 

 p. 233, 1920. — McDunnough, Check list of the Lepidoptera of Canada and 

 the United States of America (Part 2, Microlepidoptera), No. 8405, 1939.— 

 Gaede, in Bryk, Lepidopterorum catalogus, pt. 92, p. 283, 1939. 



Depressaria symmocMota Meyrick, Exotic Microlepidoptera, vol. 2, p. 223, 1918. — 

 Forbes, Cornell Univ. Agr. Exp. Stat. Memoir 68, p. 242, 1923.— McDunnough, 

 Cheek list of the Lepidoptera of Canada and the United States of America 

 (Part 2, Microlepidoptera), No. 8405, 1939 (cited as synonym of groteella 

 Chambers). 



Labial palpus pale whitish ochreous; second segment irrorated with 

 fuscous exteriorly and suffused with fuscous in the brush ; third seg- 

 ment with blackish-fuscous subbasal and supramedial annuli, the 

 fonner poorly defined. Head, thorax, and fore wing pale ochreous; 

 head infuscated above; collar blackish fuscous; tegula suffused and 

 thorax irrorated with fuscous ; fore wing heavily overlaid with brown 

 and streaked and irrorated with blackish fuscous, especially along 

 veins ; at basal third a whitish discal spot, followed at the end of cell 

 by a similarly colored spot; between the two a prominent, longi- 

 tudinal, blackish-fuscous streak ; base of wing, in anal angle, blackish 

 fuscous rapidly fading to brown; from middle of costa, around ter- 

 men to inner margin, a series of blackish-fuscous spots; cilia light 

 fuscous with a darker fuscous, median band. Hind wing very pale 

 fuscous with considerable white scaling apically and with a narrow 

 blackish-fuscous terminal line; cilia pale fuscous, white tipped and 

 with a fuscous subbasal band. Legs pale whitish-ochreous overlaid 



