Chrysina woodi, commonly known as Wood's jewel scarab, is a species of beetle belonging to the family Scarabaeidae and the subfamily Rutelinae. It is recognized for its striking metallic coloration, a characteristic shared by many members of the genus Chrysina.
Taxonomy
The species was first described by the American entomologist George Henry Horn in 1885. It was originally placed in the genus Plusiotis, which has since been synonymized with Chrysina. Within the genus, C. woodi is classified under the jewel scarabs, a group noted for their brilliant reflective carapaces.
Description
Chrysina woodi typically measures between 25 and 35 millimeters in length. Its exoskeleton is characterized by a vibrant, polished metallic green hue. Depending on the lighting and the specific specimen, the legs and tarsi may exhibit distinct metallic purplish or bluish reflections. Like other ruteline beetles, it possesses large, powerful legs adapted for clinging to foliage.
Distribution and Habitat
The species is primarily found in the mountain ranges of the Chihuahuan Desert region. Its range includes the Trans-Pecos region of western Texas and southeastern New Mexico in the United States, extending southward into the Mexican state of Chihuahua. It is specifically associated with oak-juniper woodlands and canyon habitats, typically occurring at elevations ranging from 1,500 to 2,500 meters.
Ecology and Behavior
Adult Chrysina woodi are primarily nocturnal and are frequently attracted to artificial light sources. They are herbivorous, feeding on the foliage of various oak species (Quercus). The life cycle includes a larval stage spent in decaying wood, specifically within the stumps or fallen logs of hardwood trees, where the larvae consume decomposing organic matter.
While the species is highly prized by insect collectors for its aesthetic appeal, it is considered relatively localized due to its specific habitat requirements. Current data regarding its total population trend is limited, and it is not formally listed as endangered, though habitat loss within its restricted range remains a potential concern.