Nacoleia

Walker, 1859

Banana scab moth (for N. octasema)

Nacoleia is a of in the Crambidae, Pyraustinae. The genus includes agricultural pests, most notably (), which damages banana in tropical Asia and the Pacific. Some serve as for polyembryonic . The genus was established by Walker in 1859.

Nacoleia by (c) Donald Hobern, some rights reserved (CC BY). Used under a CC-BY license.

Nacoleia charesalis by (c) Sandra H Statner, some rights reserved (CC BY), uploaded by Sandra H Statner. Used under a CC-BY license.

Nacoleia salbialis by the Smithsonian. Used under a CC0 license.

Pronunciation

How to pronounce Nacoleia: /nəˈkoʊliə/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

in this can be distinguished from similar Pyraustinae by characteristics and pattern details, though specific diagnostic features require examination. N. octasema is recognized by its association with banana plants and larval damage to fruit.

Images

Habitat

Tropical and subtropical agricultural environments; banana plantations for N. octasema; plants include Musa (banana), Manila hemp, maize, Nipa palm, Heliconia, and Pandanus.

Distribution

Asia: Indonesia, Malaysia, Singapore; Australasia and Pacific Islands: Australia, Fiji, New Caledonia, New Hebrides, Papua New Guinea, Samoa, Solomon Islands, Tonga, Wallis Islands, Irian Jaya. China: Guangxi, Guangdong, Hainan, Fujian, Yunnan, Sichuan.

Diet

feed on tissues; N. octasema larvae develop in association with banana bunch development, with feeding positively related to bunch maturity.

Host Associations

Musa (banana) - primary for N. octasema
Manila hemp -
Maize -
Nipa palm -
Heliconia -
Pandanus -
Alstonia scholaris - associated of Diaphania angustalis, which is parasitized by Copidosomopsis nacoleiae

Life Cycle

. and larval development occurs on plants. For N. octasema, site preference changes with development: early bunching stages favor pseudostem and leaf ; later stages favor spade leaf and bracts. Larval development tracks bunch development.

Behavior

is stage-dependent on development. exhibit spatial distribution patterns that complicate insecticidal control.

Ecological Role

Agricultural pest of banana and other . Some serve as for polyembryonic (e.g., Copidosomopsis nacoleiae), contributing to .

Human Relevance

Economic pest of banana ; N. octasema causes fruit damage requiring management. Difficult to control with due to larval distribution patterns within structures.

Similar Taxa

DiaphaniaSimilar Crambidae in Pyraustinae; some formerly confused or share plants and
LamprosemaN. octasema has been synonymized as Lamprosema octasema in some literature; taxonomic distinction requires verification

More Details

Taxonomic note

The name derives from Nakoleia, an ancient city in Phrygia (modern Turkey). Walker established the genus in 1859. Some have been placed in related genera (e.g., Lamprosema), and taxonomic boundaries within Pyraustinae remain under study.

Parasitoid associations

Copidosomopsis nacoleiae, a polyembryonic , is named after this but primarily parasitizes Diaphania angustalis and related rather than Nacoleia directly. The wasp's specific epithet reflects historical confusion or broader host range within Crambidae.