About the Banana Stem Weevil
Odoiporus longicollis, commonly known as banana stem weevil, pseudostem weevil, or banana pseudostem borer, is a species of weevil found in South Asia and South East Asia. It is widely distributed throughout Bhutan, Cambodia, China, Hong Kong, India, Andaman and Nicobar Islands, Indonesia, Japan, Laos, Malaysia, Myanmar, Nepal, Pakistan, Philippines, Singapore, Sri Lanka, Taiwan, Thailand and Vietnam.
This species has a body length of about 23 to 39 mm. Adults are black, but some reddish individuals also observed. This color variation is due to a phenomenon of non-sex limited variation and of sympatry. First instar larvae fleshy, yellowish white with dark brown head and apodous. Pupa is exarate and pale yellow in color.
Usually a nocturnal monophagous species of weevil, they have seen to fly during daytime only with rain or on cloudy days. The pre-oviposition period is about 15 to 30 days and the adults mate throughout the day and night. After a single mating, an adult female lays about nine eggs at the rate of one egg per day. Eggs laid by gravid females are yellowish-white in color and elliptical-shaped. Eggs are laid in the outer epidermal layer of... Wikipedia →