Two Additional Invasive Scarabaeoid Beetles (Coleoptera: Scarabaeidae: Dynastinae) in Hawaii

Authors

Mary Liz Jameson, Wichita State UniversityFollow
Darcy E. Oishi, 2Hawaii Department of Agriculture, Plant Pest Control Branch, HonoluluFollow
Brett C. Ratcliffe, University of Nebraska-LincolnFollow
Grant T. McQuate, USDA-ARS-PBARC, U.S. Pacific Basin Agricultural Research Center, Hilo, HIFollow

Document Type

Article

Date of this Version

12-2009

Comments

Published in Proceedings of the Hawaiian Entomological Society 41 (December 2009), pp. 25-30.

Abstract

Two species of dynastine scarab beetles are reported for the first time on the island of Hawaii: the Pasadena masked chafer, Cyclocephala pasadenae (Casey) (Scarabaeidae: Dynastinae: Cyclocephalini) from North America and Temnorhynchus retusus (Fabricius) (Scarabaeidae: Dynastinae: Pentodontini) from Africa. The Pasadena masked chafer is established on the island of Hawaii, is a recognized pest of turf grass, and is a concern for agriculture and native Hawaiian arthropod species. Temnorhynchus retusus is not known to be an agricultural pest, but its spread on the islands could pose a problem for Hawaiian native species. We provide an overview of each species, characteristics for recognition of these species, and comments on their introduction to the islands.