Eupithecia acutipennis

(Hulst, 1898)

Eupithecia acutipennis is a small geometrid first described by George Duryea Hulst in 1898. It is to California and belongs to the diverse 'pug' moth Eupithecia, characterized by narrow wings and a distinctive resting posture. are active during fall, winter, and early spring, with records spanning October through April. The is one of many Eupithecia found in western North America.

Eupithecia acutipennis by (c) Donald Hobern, some rights reserved (CC BY). Used under a CC-BY license.Eupithecia acutipennis wings by Jeremy deWaard, University of British Columbia. Used under a CC BY 3.0 license.Eupithecia acutipennis by Donald Hobern. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Eupithecia acutipennis: //juːˈpɪθ.i.ə əˌkjuːtɪˈpɛnɪs//

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Identification

Distinguished from other Eupithecia by the light smoky ocherous coloration of the forewings. Accurate identification to species level typically requires examination of genitalia, as is common for this . The combination of California distribution, small size (~22 mm wingspan), and the specific forewing coloration helps separate it from similar western North American pug moths. Eupithecia species are readily recognized as a group by their narrow wings and characteristic resting posture with wings held flat, creating a triangular silhouette.

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Appearance

Wingspan approximately 22 mm. Forewings are light smoky ocherous in color. As a member of the Eupithecia, it possesses narrow, relatively unmarked wings and a slender body typical of 'pug' . The resting posture involves wings held flat or slightly folded, often with a characteristic triangular outline.

Distribution

to the US state of California. Specific preferences within California are not documented.

Seasonality

have been recorded on wing from October to April, indicating fall through early spring activity. This pattern suggests a with adult during the cooler months.

Similar Taxa

  • Other Eupithecia speciesMany Eupithecia occur in western North America and share the narrow-winged 'pug' ; genitalia examination is typically required for definitive species separation.

More Details

Taxonomic history

Originally described as Tephroclystis acutipennis by Hulst in 1898, later transferred to the Eupithecia.

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