Well, a rash might be an exaggeration. We've had two in the house in the past month. I think the hot weather had something to do with it. Either they were flying in through the windows or they were emerging from some firewood under the stairs.
literature, it has misidentified itself...
*Nieto, A., Dodelin, B., Campanaro, A. & Méndez, M. 2010. Chlorophorus glabromaculatus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.1. <www.iucnredlist.org>. Downloaded on 26 August 2012.