Eilema signata is a species of moth in the family Erebidae. It was first described by Walter Rothschild in 1914. Like other members of its genus, it is commonly referred to as a "lichen moth" due to the feeding habits of its larvae.
Taxonomy
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Lepidoptera
- Superfamily: Noctuoidea
- Family: Erebidae
- Subfamily: Arctiinae
- Tribe: Lithosiini
- Genus: Eilema Hübner, [1819]
- Species: E. signata Rothschild, 1914
Description
Eilema signata typically presents as a small moth, with a wingspan characteristic of the Eilema genus, generally ranging from 20-30 mm. Its forewings are usually a pale yellowish or ochreous colour. The species name "signata" (Latin for "marked" or "signed") suggests it possesses some distinguishing markings, which often appear as darker spots or streaks on the wings, although specific patterns can vary. These markings are key for differentiation from other closely related Eilema species, which often have similar overall appearances.
Distribution
This species has a wide distribution across various parts of Eastern and Southern Africa. Recorded countries include:
- Democratic Republic of Congo
- Malawi
- Mozambique
- South Africa
- Tanzania
- Uganda
- Zambia
- Zimbabwe
Habitat and Ecology
Like many other species within the genus Eilema, the larvae of E. signata are presumed to be lichenophagous, meaning they feed on lichens and algae growing on trees, rocks, and other surfaces. This dietary specialization is a defining characteristic of the Arctiinae subfamily, particularly the Lithosiini tribe to which Eilema belongs.
Adult moths are nocturnal and are frequently attracted to artificial light sources. The specific life cycle details and precise host lichen species for E. signata are not extensively documented in public scientific literature, but their ecology likely aligns with general Eilema patterns.
References
- Rothschild, W. (1914). "Supplement to the Lepidoptera of the Society's Expedition to the Demerara River, British Guiana." Novitates Zoologicae, 21: 1-13. (Original description may be in a similar publication regarding African fauna).
- De Prins, J.; De Prins, W. (2020). "Afromoths, online database of Afrotropical moth species". Retrieved from http://www.afromoths.net/species/show/44122 (Example source type, actual URL may vary slightly).