LepidopteraGeometridae – Geometrid Moths

Day Emerald - Hodges#7085

Mesothea incertata

This record describes Mesothea incertata (species). Recorded family: Geometridae. Recorded order: Lepidoptera.

Identification and Appearance

Day Emerald - Hodges#7085 - Mesothea incertata
Contributed by Robin McLeod; Additional contributions by Maury Heiman

Adult: wings uniformly yellowish-green to dusky green; PM line slightly wavy, indistinct (sometimes absent), often the only visible marking. The area between the antennae base is green compared to white in Hethemia pistasciaria . Larva: green with brown dorsal stripe; body slender and without noticeable bumps or protrusions; head and first thoracic segment with pair of pointed horns. Day flying moth that is usually not attracted to lights.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Geometroidea
Family
Geometridae (Geometrid Moths)
Subfamily
Geometrinae
Tribe
Hemitheini
Genus
Mesothea

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

Habitat and Range

Habitat

Dry open mixedwood and pine forest, peat bogs, grasslands. ( 5 )

Geographic Range

Alaska to Newfoundland, south to North Carolina, west to California . Type locality: USA: Washington, Seattle. Moth Photographers Group - large map with some distribution data.

Seasonal Activity

Adults fly during the day in April and August. ( 6 )

Diet and Behavior

Diet: Larvae feed mainly on leaves of willow and Sweet Gale ( Myrica gale ), but also on alder, birch, Buffaloberry ( Sherpherdia canadensis ), gooseberry, New Jersey Tea ( Ceanothus americanus ), pine, and members of the rose family (Rosaceae) associated with Labrador Tea ( Ledum groenlandicum ) and Bearberry ( Arctostaphylos uva-ursi ) in Alberta. ( 5 )

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Mesothea incertata. 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 Day Emerald - Hodges#7085 (5)

Day Emerald - Hodges#7085 - photo 1
Contributed by Robin McLeod; Additional contributions by Maury Heiman
Day Emerald - Hodges#7085 - photo 2
Contributed by Robin McLeod; Additional contributions by Maury Heiman
Day Emerald - Hodges#7085 - photo 3
Contributed by Robin McLeod; Additional contributions by Maury Heiman
Day Emerald - Hodges#7085 - photo 4
Contributed by Robin McLeod; Additional contributions by Maury Heiman
Day Emerald - Hodges#7085 - photo 5
Contributed by Robin McLeod; Additional contributions by Maury Heiman

Photo credits: Contributed by Robin McLeod; Additional contributions by Maury Heiman

Frequently Asked Questions About Day Emerald - Hodges#7085

What is Day Emerald - Hodges#7085?

Day Emerald - Hodges#7085 (Mesothea incertata) is a species in the family Geometridae, within the order Lepidoptera.

How big is Day Emerald - Hodges#7085?

Forewing length 9-11 mm. ( 3 )

How do you identify Day Emerald - Hodges#7085?

Adult: wings uniformly yellowish-green to dusky green; PM line slightly wavy, indistinct (sometimes absent), often the only visible marking. The area between the antennae base is green compared to white in Hethemia pistasciaria . Larva: green with brown dorsal stripe; body slender and without noticeable bumps or protrusions; head and first thoracic segment with pair of pointed horns.

Where is Day Emerald - Hodges#7085 found?
FeatureDetails
HabitatDry open mixedwood and pine forest, peat bogs, grasslands. ( 5 )
RangeAlaska to Newfoundland, south to North Carolina, west to California . Type locality: USA: Washington, Seattle. Moth Photographers Group - large map with some distribution data.
What does Day Emerald - Hodges#7085 eat?

The diet of the Day Emerald - Hodges#7085 includes Larvae feed mainly on leaves of willow and Sweet Gale ( Myrica gale ), but also on alder, birch, Buffaloberry ( Sherpherdia canadensis ), gooseberry, New Jersey Tea ( Ceanothus americanus ), pine, and members of the rose family (Rosaceae) associated with Labrador Tea ( Ledum groenlandicum ) and Bearberry ( Arctostaphylos uva-ursi ) in Alberta. ( 5 ).

When is Day Emerald - Hodges#7085 active?

Day Emerald - Hodges#7085: seasonal activity - Adults fly during the day in April and August. ( 6 ).

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

Photo credits: Contributed by Robin McLeod; Additional contributions by Maury Heiman. Contributors retain copyright over their individual contributions.