Glenea extrema is a species of beetle belonging to the family Cerambycidae, commonly known as longhorn beetles. It was first scientifically described by the English entomologist Francis Polkinghorne Pascoe in 1867.
Taxonomy Glenea extrema is classified within the following hierarchy:
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Coleoptera (Beetles)
- Family: Cerambycidae (Longhorn beetles)
- Subfamily: Lamiinae
- Tribe: Pteropliini
- Genus: Glenea Newman, 1842
- Species: Glenea extrema Pascoe, 1867
Description As with other members of the Glenea genus, Glenea extrema possesses a slender, elongated body and notably long antennae, which are typically as long as or longer than the body itself. Species within the Glenea genus are often characterized by their striking and varied color patterns, which can include bright contrasting spots, bands, or metallic sheens on their elytra (wing covers) and pronotum. These patterns can serve various ecological functions, such as mimicry or aposematism (warning coloration). While specific detailed morphological descriptions for G. extrema might require specialized literature, it generally adheres to the typical morphology of the genus.
Distribution and Habitat Glenea extrema is primarily found in Southeast Asia. Its known geographical distribution includes parts of Malaysia, particularly on the island of Borneo (e.g., Sarawak), and Indonesia (e.g., Sumatra). These beetles inhabit forested regions, where their larvae develop within the wood of various trees. Adult beetles are typically found on the foliage, branches, or trunks of host plants within these forest ecosystems.
Ecology The life cycle of Glenea extrema, like that of many Cerambycidae, involves a larval stage that is xylophagous, meaning the larvae bore into and feed on wood. This activity contributes to the decomposition of dead or weakened trees. Adult Glenea extrema are generally herbivorous, feeding on plant tissues such as leaves or bark, and sometimes pollen. The specific host plants utilized by G. extrema may vary depending on its localized distribution.