SOME AMERICAN GEOMETRID MOTHS — CAPPS 123 



not what Hiibner had. Presumably fervidaria represents an oak-feed- 

 ing form and is, in my opinion, nothing but a color variety or race of 

 ■fiscellaria. If this should prove to be true, Hubner's name will take 

 precedence and have to be applied to the complex now under -fiscellaria. 



2. LAMBDINA FISCELLARIA FISCELLARIA (Guenee) 



Plate 1, Figubes 1, 1A ; Plate 3, Figures 7, 7A ; Plate 8, Figure 21. 



Ellopia fiscellaria Guenee, Histoire naturelle des insectes lepidopteres, vol. 9, 

 p. 133, 1857. — Barnes and McDunnough, Check list of the Lepidoptera of 

 Boreal America, No. 4654, 1917. — McDunnough, Check list of the Lepidoptera 

 of Canada and the United States of America (Part 1, Macrolepidoptera ) , 

 No. 5146, 1938. 



Therina fiscellaria (Guenee) Hulst, U. S. Nat. Mus. Bull. 52, p. 334, 1903. 



Ellopia flagitiaria Guenee, Histoire naturelle des insectes lepidopteres, vol. 9, 

 p. 133, 1857. (New synonymy.) 



Therina fiscellaria var. peccataria Swett, Psyche, vol. 16, p. 96, 1909. 



Therina fiscellaria var. johnsoni Swett, Can. Ent., vol. 45, p. 174, 1913. 



Ellopia turbataria Barnes and McDunnough, Contr. Nat. Hist. Lepid. North 

 America, vol. 3, No. 4, p. 255, 1917. — McDunnough, Check list of the 

 Lepidoptera of Canada and the United States of America (Part 1, Macro- 

 lepidoptera), No. 5148, 1938. (New synonymy.) 



Male. — Color variable, ranging from a uniformly pale whitish ocher 

 to smoky fuscous ; ocherous forms variable in the degree of sprinkling 

 of fuscous scales. 



Forewing with two transverse lines, darker than the ground color, 

 sinuate or evenly curved and rather sharply defined ; occasionally with 

 the area between the lines somewhat darkly suffused; transverse 

 anterior line from costa well before middle of the wing, usually edged 

 inwardly with ocherous; transverse posterior line from costa well 

 before the apex, usually edged outwardly with ocherous. 



Hind wing with a single transverse line, usually edged outwardly 

 w ith ocher ; outer margin produced at vein 4. 



Alar expanse, 32-45 mm. 



Genitalia (figs. 7, 7A) : Gnathos broad, with numerous coarse spines; 

 f urea long, extending almost to or beyond costa of harpe, compressed 

 laterally, with spinules along dorsal surface; anellus broad, moder- 

 ately sclerotized, somewhat scobinate with the scobinations stronger 

 basally, lateral arms strongly sclerotized, long and extending almost 

 to costa of harpe; aedeagus armed distally and ventrally with an 

 extenuated sclerotized structure which is scobinate along the margin ; 

 penis with a patch of long, slender, deciduous cornuti. 



Female. — Similar to male in color and markings. 



Alar expanse, 3CM0 mm. 



Genitalia (fig. 21) : Ventral operculum strongly sclerotized; ventral 

 margin of genital opening without a bordering sclerotized band; 



480078—43 2 



