Butterflies and Moths of North America

collecting and sharing data about Lepidoptera


Eupithecia zygadeniata (Packard, 1876)
Family: Geometridae
Subfamily: Larentiinae
Identification: The thoracic disk is typically uniform gray with three darker dots, two at the front margin, one centered and toward the rear. -- The abdominal shape is fairly distinctive compared to other species in its Texas range: It is bulbous (wide) at the base and much narrower in the outer 1/3 to 1/2, often showing slightly concave sides in the distal 1/2 in dorsal view. This bulbous abdomen is more conspicuous in females. The abdominal tip is often held somewhat upturned. The abdomen of other Texas Eupithecia is narrower at the base, more uniform in width, and gradually tapered. -- A thin, shallowly U-shaped black line crosses the rear margin of the first abdominal segment, contrasting with the remainder of the gray abdomen. -- The 2nd and 3rd abdominal segments (those immediately behind the black crossline; sometimes including the 4th segment) each have a conspicuous black dot on the side. -- A narrow, whitish gray stripe runs down the center of the abdomen, interrupted by a series of black inverted chevrons on the
Wing Span:
Life History:
Flight: March-May (June) in Texas; June-July further north.
Caterpillar Hosts: Larvae feed on the flowers and seed capsules of Green Lily (Schoenocaulon texanum; Liliaceae; BG records) and Death Camas (Toxicoscordium [= Zygadenus] nuttallii; Liliaceae)(1)(2) in Texas. The larval food plants in other western states are undetermined.
Adult Food:
Habitat:
Range: Most numerous in central Texas, but also ranging (sparsely?) from New Mexico and Colorado to Wyoming and Montana.
Conservation:
NCGR:
Management Needs:
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Verified Sightings

Displaying 1 - 1 of 1 verified sightings
Observation date: Jul 23, 2024
Submitted by: J_Martineau
Region:
Verified by: J_Martineau
Verified date: Dec 17, 2024
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