LepidopteraGeometridae – Geometrid Moths

Dichorda illustraria - Hodges#7055

Dichorda illustraria

This record describes Dichorda illustraria (species). Recorded family: Geometridae. Recorded order: Lepidoptera.

Identification and Appearance

Dichorda illustraria - Hodges#7055 - Dichorda illustraria
Contributed by Jason D. Roberts; Additional contributions by Maury Heiman , Robert H. Biagi

The original description as Geometra illustraria Hulst, is available online at the link in the print references below. Specimens identified by DNA analysis:

Classification

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

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

Habitat and Range

Geographic Range

Coastal Oregon south to Baja California with the Sierra Nevada and Transverse Ranges the eastern limit. ( 4 )

Seasonal Activity

Adults fly June to September in northern California and Oregon Two broods in southern California and Baja with adults seen March to November. ( 4 )

Diet and Behavior

Diet: Larval hosts include. Rhus laurina Rhus trilobata Ribes sp.

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Dichorda illustraria. 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 Dichorda illustraria - Hodges#7055 (5)

Dichorda illustraria - Hodges#7055 - photo 1
Contributed by Jason D. Roberts; Additional contributions by Maury Heiman , Robert H. Biagi
Dichorda illustraria - Hodges#7055 - photo 2
Contributed by Jason D. Roberts; Additional contributions by Maury Heiman , Robert H. Biagi
Dichorda illustraria - Hodges#7055 - photo 3
Contributed by Jason D. Roberts; Additional contributions by Maury Heiman , Robert H. Biagi
Dichorda illustraria - Hodges#7055 - photo 4
Contributed by Jason D. Roberts; Additional contributions by Maury Heiman , Robert H. Biagi
Dichorda illustraria - Hodges#7055 - photo 5
Contributed by Jason D. Roberts; Additional contributions by Maury Heiman , Robert H. Biagi

Photo credits: Contributed by Jason D. Roberts; Additional contributions by Maury Heiman , Robert H. Biagi

Frequently Asked Questions About Dichorda illustraria - Hodges#7055

What is Dichorda illustraria - Hodges#7055?

Dichorda illustraria - Hodges#7055 (Dichorda illustraria) is a species in the family Geometridae, within the order Lepidoptera.

How big is Dichorda illustraria - Hodges#7055?

Forewing length. ♂ 14-18 mm. ♀ 18-22 mm.

How do you identify Dichorda illustraria - Hodges#7055?

The original description as Geometra illustraria Hulst, is available online at the link in the print references below. Specimens identified by DNA analysis:

Where is Dichorda illustraria - Hodges#7055 found?

Range: Coastal Oregon south to Baja California with the Sierra Nevada and Transverse Ranges the eastern limit. ( 4 )

What does Dichorda illustraria - Hodges#7055 eat?

The diet of the Dichorda illustraria - Hodges#7055 includes Larval hosts include. Rhus laurina Rhus trilobata Ribes sp..

When is Dichorda illustraria - Hodges#7055 active?

Dichorda illustraria - Hodges#7055: seasonal activity - Adults fly June to September in northern California and Oregon Two broods in southern California and Baja with adults seen March to November. ( 4 ).

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

Photo credits: Contributed by Jason D. Roberts; Additional contributions by Maury Heiman , Robert H. Biagi. Contributors retain copyright over their individual contributions.