Incidence of Caloglyphus phyllophagianus (Acari: Acaridae) on adult Phyllophaga spp. and other Scarabaeidae (Coleoptera) in north central Texas

Sixteen species of adult scarabs collected over 3 yr in ultraviolet light traps in Dallas County, Tex., had widely varying levels of infestation with a nonfeeding larval stage (heteromorphic deutonymph) of Caloglyphus phyllophagianus Oseto & Mayo. The beetles were the geotrupines Bolbocerosoma confusum Brown and B. pusillum Dawson & McCulloch; the dynastines Cyclocephala lurida Bland, Dyscinetus morator (F.), and Euetheola rugiceps (LeConte); the hybosorine Hybosorus illigeri Reiche; the ruteline Pelidnota punctata L.; the melolonthines Phyllophaga affabilis (Horn), P. congrua (LeConte), P. crassissima (Blanchard), P. crinita Burmeister, P. glabricula (LeConte), P. hirtiventris (Horn), P. rubiginosa (LeConte), and P. torta (LeConte); and the trogine Omorgus suberosus (F.).