LepidopteraGeometridae – Geometrid Moths

Six-spotted Digrammia - Hodges#6387.1

Digrammia sexpunctata

This record describes Digrammia sexpunctata (species). Recorded family: Geometridae. Recorded order: Lepidoptera.

Identification and Appearance

Six-spotted Digrammia - Hodges#6387.1 - Digrammia sexpunctata
Contributed by John F. Carr; Additional contributions by Chuck Sexton , Robert H. Biagi

Forewings mostly plain gray with black marks on the costa at the locations of the AM, median, and PM lines. The PM line is often bold, black, and continuous about half-way down the FW , typically with at least an additional black smudge outside the PM line across from the FW cell. Ferguson states that the species is so close to Digrammia ubiquitata that some specimens may needed genitalic examination to be separated. They occur over much of the same Great Basin range. The bold PM black line may be less continuous across the FW in ubiquitata (suggested in MPG images).

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Geometroidea
Family
Geometridae (Geometrid Moths)
Subfamily
Ennominae
Tribe
Macariini
Genus
Digrammia

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

Habitat and Range

Habitat

In mountainous areas, the species occurs at middle elevations (7,000 - 8,000 ft).

Geographic Range

Known mainly from the Great Basin ranges. Ferguson examined specimens from Colorado, Idaho, Nevada, Oregon, Utah, and Washington. An MPG record mapped in central Texas was based on a misidentification.

Seasonal Activity

Flight period May to early August with peak in early to mid-July.

Diet and Behavior

Diet: The species has been reared from larvae on Purshia tridentata (Antelope bitterbrush) .

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Digrammia sexpunctata. 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 Six-spotted Digrammia - Hodges#6387.1 (2)

Six-spotted Digrammia - Hodges#6387.1 - photo 1
Contributed by John F. Carr; Additional contributions by Chuck Sexton , Robert H. Biagi
Six-spotted Digrammia - Hodges#6387.1 - photo 2
Contributed by John F. Carr; Additional contributions by Chuck Sexton , Robert H. Biagi

Photo credits: Contributed by John F. Carr; Additional contributions by Chuck Sexton , Robert H. Biagi

Frequently Asked Questions About Six-spotted Digrammia - Hodges#6387.1

What is Six-spotted Digrammia - Hodges#6387.1?

Six-spotted Digrammia - Hodges#6387.1 (Digrammia sexpunctata) is a species in the family Geometridae, within the order Lepidoptera.

How do you identify Six-spotted Digrammia - Hodges#6387.1?

Forewings mostly plain gray with black marks on the costa at the locations of the AM, median, and PM lines. The PM line is often bold, black, and continuous about half-way down the FW , typically with at least an additional black smudge outside the PM line across from the FW cell.

Where is Six-spotted Digrammia - Hodges#6387.1 found?
FeatureDetails
HabitatIn mountainous areas, the species occurs at middle elevations (7,000 - 8,000 ft).
RangeKnown mainly from the Great Basin ranges. Ferguson examined specimens from Colorado, Idaho, Nevada, Oregon, Utah, and Washington. An MPG record mapped in central Texas was based on a misidentification.
What does Six-spotted Digrammia - Hodges#6387.1 eat?

The diet of the Six-spotted Digrammia - Hodges#6387.1 includes The species has been reared from larvae on Purshia tridentata (Antelope bitterbrush) ..

When is Six-spotted Digrammia - Hodges#6387.1 active?

Six-spotted Digrammia - Hodges#6387.1: seasonal activity - Flight period May to early August with peak in early to mid-July..

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

Photo credits: Contributed by John F. Carr; Additional contributions by Chuck Sexton , Robert H. Biagi. Contributors retain copyright over their individual contributions.