* Jansen MGM (2001) Instar identification and some notes about the life cycle of Rhizoecus hibisci Kawai ; Takagi (Coccoidea: Pseudococcidae). Bollettino di Zoologia Agraria e di Bachicoltura, Serie II, 33(3), 53-56.
* Demite PR, Flechtmann CHW & Feres RJF (2016) Tetranychidae (acari) in forest fragments in the state of São Paulo, Brazil. Acarologia, 56(4), 435–449.
* Lamberti F & Bleve-Zacheo T (1979) Studies on Xiphinema americanum sensu lato with descriptions of fifteen new species (Nematoda: Longidoridae). Nematologia Mediterranea 7, 51-106.
------- As hackberry (in USA), so probably Celtis occidentalis.
* EFSA (2024) Update of the Xylella spp. host plant database – Systematic literature search up to 31 December 2023. EFSA Journal 22, e8898. https://efsa.onlinelibrary.wiley.com/doi/epdf/10.2903/j.efsa.2024.8898
------- Subspecies unknown.