Upon re-examination of preserved larval chiggers collected from spadefoot toads (Spea bombifrons and Spea multiplicata) in the Southern High Plains of Texas, USA, and identified previously as Hannemania sp., we found them to be Eutrombicula alfreddugesi. A review of previous reports of Eutrombicula spp. chiggers on amphibian hosts provides context for current findings. All members of the genus Hannemania are specialized larval parasites of amphibians, whereas larval E. alfreddugesi are generalist parasites of a wide variety of terrestrial vertebrate hosts that infrequently includes amphibians. Spadefoot toads are previously undocumented hosts for E. alfreddugesi, and observed infestations were unusually prevalent and intense for this chigger on an amphibian host.
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Vol. 47 • No. 3