Diolcus variegatus (Heteroptera: Pentatomoidea: Scutelleridae), a Caribbean species established in south Florida. 2002. Eger . J. R. Jr.. Baranowski . R. M.. The Florida Entomologist. 85. 1. 267–269. 10.1653/0015-4040(2002)085[0267:DVHPSA]2.0.CO;2. 3496848. free.
Book: Catalogue of the Heteroptera of the Palaearctic Region, Vol. 5: Pentatomomorpha II. 2006. Aukema . Berend. Rieger . Christian. The Netherlands Entomological Society. 978-9071912283.