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Leucania anteroclera has a stronger light line stretching from the base of the wing to the more distinct, white discal dot. This white line is more heavily accented with dark below in anteroclera. The process of the male valve indicated in the photograph of the male genitalia by the blue arrow is narrower and slightly hooked in farcta.
Leucania humidicola occurs in southern California. The median white line and lower, dark shading is very strong in humidicola and the hindwing is pure white. The postmedial line of humidicola is represented by a series of distinct black dots. Leucania farcta (Grote) Diagnosis: A Pacific Coast species stretching from British Columbia to Southern California. Forewing nearly unmarked except for the hint of a light line and discal dot. Color light straw-brown in the southern populations, or suffused with rusty-orange in northern populations. Distribution (See map below): Leucania farcta has a wide distribution in the western United States and Canada, but is most common in the west, its range stretching from from southern British Columbia to Southern California. Eastward the range extends to Colorado and southeastern Arizona. Identification Quality: Good, but the relationship between the reddish northern populations and the light brown southern populations in the Washington to northern California region needs to be determined.
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Leucania farcta
Similar Species: Leucania anteroclera Leucania humidicola
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Similar Species
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