LepidopteraNoctuidae – Owlet Moths

Oligia obtusa - Hodges#9418

Oligia obtusa

This record describes Oligia obtusa (species). Recorded family: Noctuidae. Recorded order: Lepidoptera.

Identification and Appearance

Oligia obtusa - Hodges#9418 - Oligia obtusa
Contributed by Maury J. Heiman

Original description as Helotropha obtusa Smith. , Adult: The darker median area is trapezoid shaped. Reniform and orbicular spots lined with light scales. Hindwing is brownish gray with a diffused darker discal spot.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Noctuoidea
Family
Noctuidae (Owlet Moths)
Subfamily
Noctuinae
Tribe
Apameini
Genus
Oligia

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

Across southern Canada and northern United States extending into much of the northern half of the eastern states. Has been recorded in Arizona. ( 4 ) Moth Photographers Group - large range map with some collection dates.

Seasonal Activity

Most records are from July through September. ( 4 )

Diet and Behavior

Diet: Larval host is unknown but suspected to be grasses (Poaceae).

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Oligia obtusa. Species-specific details appear above.

Group overview

Lepidoptera includes approximately 180,000 described species of butterflies and moths. Moths outnumber butterflies roughly 10:1. The monarch butterfly's eastern population has declined by more than 80% since the mid-1990s, and the western population by over 95% since the 1980s. The IUCN lists the migratory monarch as Vulnerable.

Ecological role of the group

Butterflies and moths are essential indicators of ecosystem health. As caterpillars, they are a primary food source for birds - a single nest of blue tit chicks requires ~10,000 caterpillars. Adult moths pollinate many night-blooming plants.

Economic and practical significance of the group

Lepidoptera are critical pollinators. In Europe, grassland butterfly species have declined by almost 50% since the early 1990s. In the UK, three-quarters of butterflies are in decline. In the U.S., five butterfly species have gone extinct since 1950, with 29 listed as endangered.

Recorded sources for this group: IUCN Red List, Xerces Society, USFWS, PNAS, WWF. Imported estimates may describe particular regions or reporting periods.

Explore Lepidoptera families and species →

Photos of Oligia obtusa - Hodges#9418 (5)

Oligia obtusa - Hodges#9418 - photo 1
Contributed by Maury J. Heiman
Oligia obtusa - Hodges#9418 - photo 2
Contributed by Maury J. Heiman
Oligia obtusa - Hodges#9418 - photo 3
Contributed by Maury J. Heiman
Oligia obtusa - Hodges#9418 - photo 4
Contributed by Maury J. Heiman
Oligia obtusa - Hodges#9418 - photo 5
Contributed by Maury J. Heiman

Photo credits: Contributed by Maury J. Heiman

Frequently Asked Questions About Oligia obtusa - Hodges#9418

What is Oligia obtusa - Hodges#9418?

Oligia obtusa - Hodges#9418 (Oligia obtusa) is a species in the family Noctuidae, within the order Lepidoptera.

How big is Oligia obtusa - Hodges#9418?

Forewing length 12-13 mm

How do you identify Oligia obtusa - Hodges#9418?

Original description as Helotropha obtusa Smith. , Adult: The darker median area is trapezoid shaped. Reniform and orbicular spots lined with light scales. Hindwing is brownish gray with a diffused darker discal spot.

Where is Oligia obtusa - Hodges#9418 found?

Range: Across southern Canada and northern United States extending into much of the northern half of the eastern states. Has been recorded in Arizona. ( 4 ) Moth Photographers Group - large range map with some collection dates.

What does Oligia obtusa - Hodges#9418 eat?

The diet of the Oligia obtusa - Hodges#9418 includes Larval host is unknown but suspected to be grasses (Poaceae)..

When is Oligia obtusa - Hodges#9418 active?

Oligia obtusa - Hodges#9418: seasonal activity - Most records are from July through September. ( 4 ).

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Maury J. Heiman. Contributors retain copyright over their individual contributions.