Nacoleia octasema

Definition

A species of moth in the family Crambidae (order Lepidoptera), commonly known as the banana scab moth. The species was described by Edward Meyrick in 1886 and occurs across the southwestern Pacific and eastern Australia, including Vanuatu, Indonesia, New Guinea, the Solomon Islands, New Caledonia, Fiji, Tonga, Samoa, and Queensland. Larvae are associated with banana plants, where feeding damage produces characteristic scarring on fruit.

Etymology

From Greek octa- (eight) and sema (mark/sign), likely referring to wing pattern elements; genus Nacoleia from Greek roots related to 'dwarf' or 'small' with unclear classical reference.

Example

In Queensland banana plantations, Nacoleia octasema larvae tunnel into developing fruit, causing corky scab lesions that downgrade commercial fruit quality and require integrated pest management combining pheromone monitoring and biological control.

Synonyms

• Banana scab moth

Related Terms

• Crambidae
• Lepidoptera
• phytophagous
• fruit scarring
• Integrated Pest Management
• Edward Meyrick

Usage Notes

The common name 'banana scab moth' is shared with related crambid pests in other regions; precise identification requires examination of genitalia or molecular markers. The species is part of a species-rich tropical genus Nacoleia within the subfamily Spilomelinae. Regional populations may show variation in voltinism and host plant breadth.