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![]() ![]() ![]() Oriental flower beetles are about one inch long (about half the size of CRB).Oriental flower beetle do not have an upturned “horn” like CRB.The oriental flower beetle is the largest beetle on O’ahu and is often mistaken for the Coconut Rhinoceros Beetle, however there are some distinct difference that can help you identify between the two beetles. Oriental flower beetles have been in Hawai’i since 2002 and are widespread. Adult CRB are active at night and live between 4-9 months.After a pupation phase of about 2 weeks, adults emerge.Grubs feed on decaying wood and organic material for about 4-6 months before pupating.Eggs hatch into C-shaped, larval grubs that can grow to be 60-105mm (2.3-4.1 inches) long.Eggs are laid and develop inside rotting coconut logs, mulch or compost piles.Both male and female CRB have a horn on their head, though the male’s horn is more than twice as long as the female’s.Adult coconut rhinoceros beetles are about 30-60mm long (about 2 inches) solid, black beetles.CRB is one of the most damaging pest of coconut palms, and could pose a threat to other species including Hawaii’s only native and endangered palm, the Loulu (genus Pritchardia). In its native range, the coconut rhinoceros beetle can be attacked by a variety of predators at all life stages and is also susceptible to a fungus and a virus that keep the populations in check. It was accidentally introduced from Sri Lanka to Samoa in 1909 and is now distributed throughout the South Pacific. The coconut rhinoceros beetle (CRB) is a large scarab beetle that is native to Southeast Asia. ![]() If any questions arise related to the accuracy of the information contained in translated text, refer to the English version on this website, it is the official version.Coconut Rhinoceros Beetle ( Oryctes rhinoceros) The official text of content on this site is the English version found on this website.Users are advised to use MS Edge, Safari, Chrome, or Firefox browser to take full advantage of the Google Translate feature. IE users: Please note that Google Translate may not render correctly when using Internet Explorer.Any individuals or parties that use Commander, Navy Region Hawaii, content in translated form, whether by Google Translate or by any other translation services, do so at their own risk. All site visitors may choose to use similar tools for their translation needs.Commander, Navy Region Hawaii, does not directly endorse Google Translate or imply that it is the only language translation solution available to users.Some items cannot be translated, including but not limited to image buttons, drop down menus, graphics, photos, or portable document formats (pdfs).Commander, Navy Region Hawaii, does not warrant the accuracy, reliability, or timeliness of any information translated.This service is meant solely for the assistance of limited English-speaking users of the website.The automated translations should not be considered exact and should be used only as an approximation of the original English language content.Commander, Navy Region Hawaii, has no control over the features, functions, or performance of the Google Translate service.Google Translate, a third party service provided by Google, performs all translations directly and dynamically. ![]()
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