LepidopteraGeometridae – Geometrid Moths

Semaeopus gracilata - Hodges#7142

Semaeopus gracilata

This record describes Semaeopus gracilata (species). Recorded family: Geometridae. Recorded order: Lepidoptera.

Identification and Appearance

Semaeopus gracilata - Hodges#7142 - Semaeopus gracilata
Contributed by Randy Hardy; Additional contributions by Maury Heiman , Chuck Sexton

Semaeopus gracilata - Hodges#7142 (Semaeopus gracilata) is a species in the family Geometridae, commonly known as geometrid moths, belonging to the order Lepidoptera (Butterflies and Moths). It is classified within the subfamily Sterrhinae, tribe Cosymbiini, superfamily Geometroidea. This species belongs to the genus Semaeopus. As a member of class Insecta, phylum Arthropoda, it is part of the kingdom Animalia. Size: Wingspan 23.5-25 mm.. Active during April-May and August-September. Early literature records are all from the first week in August (Grossbeck, 1912; Wright, 1920); the Gillette Museum has as an AZ specimen from February (SCAN)..

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Geometroidea
Family
Geometridae (Geometrid Moths)
Subfamily
Sterrhinae
Tribe
Cosymbiini
Genus
Semaeopus

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

Habitat and Range

Geographic Range

Described from southern Arizona specimens collected from the Catalina and Baboquivari Mountains, Redington and Christmas (Grossbeck, 1912). Three specimens collected from Coyote Mountains, Pima County, Arizona. Bordelon & Knudson added Brewster Co., TX (LepSoc), and there is a recent record from Jeff Davis Co., TX (iNaturalist).

Seasonal Activity

April-May and August-September. Early literature records are all from the first week in August (Grossbeck, 1912; Wright, 1920); the Gillette Museum has as an AZ specimen from February (SCAN).

Additional species information

Species notes from the sources

Etymology: Specific epithet is Latin meaning "slim, lean, graceful."

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Semaeopus gracilata. 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 Semaeopus gracilata - Hodges#7142 (2)

Semaeopus gracilata - Hodges#7142 - photo 1
Contributed by Randy Hardy; Additional contributions by Maury Heiman , Chuck Sexton
Semaeopus gracilata - Hodges#7142 - photo 2
Contributed by Randy Hardy; Additional contributions by Maury Heiman , Chuck Sexton

Photo credits: Contributed by Randy Hardy; Additional contributions by Maury Heiman , Chuck Sexton

Frequently Asked Questions About Semaeopus gracilata - Hodges#7142

What is Semaeopus gracilata - Hodges#7142?

Semaeopus gracilata - Hodges#7142 (Semaeopus gracilata) is a species in the family Geometridae, within the order Lepidoptera.

How big is Semaeopus gracilata - Hodges#7142?

Wingspan 23.5-25 mm.

Where is Semaeopus gracilata - Hodges#7142 found?

Range: Described from southern Arizona specimens collected from the Catalina and Baboquivari Mountains, Redington and Christmas (Grossbeck, 1912). Three specimens collected from Coyote Mountains, Pima County, Arizona. Bordelon & Knudson added Brewster Co., TX (LepSoc), and there is a recent record from Jeff Davis Co., TX (iNaturalist).

When is Semaeopus gracilata - Hodges#7142 active?

Semaeopus gracilata - Hodges#7142: seasonal activity - April-May and August-September. Early literature records are all from the first week in August (Grossbeck, 1912; Wright, 1920); the Gillette Museum has as an AZ specimen from February (SCAN)..

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

Photo credits: Contributed by Randy Hardy; Additional contributions by Maury Heiman , Chuck Sexton. Contributors retain copyright over their individual contributions.