LepidopteraGeometridae – Geometrid Moths

Hesperumia fumosaria - Hodges#6432

Hesperumia fumosaria

This record describes Hesperumia fumosaria (species). Recorded family: Geometridae. Recorded order: Lepidoptera.

Identification and Appearance

Hesperumia fumosaria - Hodges#6432 - Hesperumia fumosaria — Contributed by Joyce Gross; Additional contributions by Randy Hardy , Robert H. Biagi

The population from southern California is small in size and has a relatively high percentage of the moths with a brown median area of the forewing in both sexes. The moths from central and northern California are larger and have about one-third as many specimens with the brown median area.

Classification

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

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

Diet and Behavior

Diet: Has been reared on various genera of Rosaceae, Rhamnaceae, and Ericaceae.

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Hesperumia fumosaria. 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.

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