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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Systematic Entomology Laboratory » Research » Publications at this Location » Publication #388086

Research Project: Systematics of Beetles (Coleoptera) in Support of U.S. Agriculture, Arboriculture, and Biological Control of Pests

Location: Systematic Entomology Laboratory

Title: Randersonia Chamorro, a new genus with two new species of North American Cryptorhynchinae (Coleoptera: Curculionidae)

item Chamorro, Maria
item PRESNALL, TARA - Pennsylvania State University

Submitted to: Zootaxa
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 11/28/2022
Publication Date: 12/23/2022
Citation: Chamorro, M.L., Presnall, T. 2022. Randersonia Chamorro, a new genus with two new species of North American Cryptorhynchinae (Coleoptera: Curculionidae). Zootaxa. 5222(6):591-599.

Interpretive Summary: Two new species of weevil are described, one from the Eastern United States, the other from Mexico. Both species are very rare and probably live in leaf litter. This study continues the ongoing effort to document all weevil species occurring in the United States. A greater understanding of what is present within our borders will better prepare us for invasive species. This information will better prepare and inform scientists, resource managers, port identifiers, and the general public to track, manage and control potential new colonizers.

Technical Abstract: A new North American genus Randersonia Chamorro with two new species, Randersonia cartwrighti Chamorro & Presnall sp. n. from Prince William County, Virginia, USA and Randersonia schwarzi Chamorro & Presnall sp. n. from Tampico, Tamaulipas, Mexico are described. The unique specimen of R. cartwrighti was collected under deer droppings in 1965 and the only known specimens of R. schwarzi were collected more than 109 years ago in 1912. An updated couplet is provided for use in the key to genera in American Beetles as well as a key to the species of Randersonia. A short discussion is included regarding veracity of collections. Habitus photographs are included.