LepidopteraNoctuidae – Owlet Moths

Wheat Armyworm - Hodges#10438.1

Mythimna sequax

This record describes Mythimna sequax (species). Recorded family: Noctuidae. Recorded order: Lepidoptera.

Identification and Appearance

Wheat Armyworm - Hodges#10438.1 - Mythimna sequax
Contributed by Maury J. Heiman

The original description is available online. Hindwing is white with contrasting dark veins and dark shading along the outer margin.

Classification

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

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

Habitat and Range

Geographic Range

Southern Texas; southern Florida. ( 4 ) , ( 5 ) , ( 6 ) Also occurs in Cuba, Mexico to Argentina. ( 6 ) Holotype collected in Mexico, Jalapa. (Schaus)

Seasonal Activity

January and November records for Florida. March for Texas. ( 7 ) , ( 6 )

Diet and Behavior

Diet: Triticum (wheat). Also listed as a pest of Oryza (rice). ( 8 )

Life History

Some general life cycle notes in PDF. ( 8 )

Additional species information

Species notes from the sources

Etymology: sequax Latin word for "following" to descibe the behavior of armyworm larvae. ( 3 )

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Mythimna sequax. 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 →

Frequently Asked Questions About Wheat Armyworm - Hodges#10438.1

What is Wheat Armyworm - Hodges#10438.1?

Wheat Armyworm - Hodges#10438.1 (Mythimna sequax) is a species in the family Noctuidae, within the order Lepidoptera.

How do you identify Wheat Armyworm - Hodges#10438.1?

The original description is available online. Hindwing is white with contrasting dark veins and dark shading along the outer margin.

Where is Wheat Armyworm - Hodges#10438.1 found?

Range: Southern Texas; southern Florida. ( 4 ) , ( 5 ) , ( 6 ) Also occurs in Cuba, Mexico to Argentina. ( 6 ) Holotype collected in Mexico, Jalapa. (Schaus)

What does Wheat Armyworm - Hodges#10438.1 eat?

The diet of the Wheat Armyworm - Hodges#10438.1 includes Triticum (wheat). Also listed as a pest of Oryza (rice). ( 8 ).

When is Wheat Armyworm - Hodges#10438.1 active?

Wheat Armyworm - Hodges#10438.1: seasonal activity - January and November records for Florida. March for Texas. ( 7 ) , ( 6 ).

What is the life cycle of a Wheat Armyworm - Hodges#10438.1?

Some general life cycle notes in PDF. ( 8 )

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.