Valid Names Results

Rhizoecus arabicus Hambleton, 1976 (Rhizoecidae: Rhizoecus)

Nomenclatural History

• Rhizoecus eloti Giard 1897: 585. Type data: GUADELOUPE: on roots of coffee. Syntypes, female, junior synonym (discovered by MatileWiEt2006, 70). Notes: Matile-Ferrero et al. (2006) regarded this species as nomen oblitum. Type material probably lost. D. Matile-Ferrero (1993) personal communication to Y. Ben-Dov.
• Rhizoecus arabicus Hambleton 1976: 13. Type data: COLOMBIA: Chinchina, on Coffea arabica. Holotype, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name Illustr.

Common Names

Ecological Associates

Hosts:

Families: 5 | Genera: 7

Geographic Distribution

Keys

• CaballKaRa2026: pp.117 ( Adult (F) ) [Rhizoecidae species recorded in Germany]
• CaballKo2024: pp.18 ( Adult (F) ) [Species associated with coffee roots in Colombia]
• KaydanKoKo2019: pp.3-4 ( Adult (F) ) [Neotropical Rhizoecus species]
• RamosPCa2016: pp.61-66 ( Adult (F) ) [Species of the genus Rhizoecus known from Colombia]
• KozarKo2007: pp.132-137 ( Adult (F) ) [world]
• WilliaGr1992: pp.497 ( Adult (F) ) [Central and South America]
• Hamble1978: pp.157 ( Adult (F) ) [America]
• Hamble1976: pp.9 ( Adult (F) ) [World]

Remarks

• Systematics: Matile-Ferrero et al. (2006) regarded R. arabicus Hambleton, 1976 as a nomen protectum and assigned R. eloti Giard, 1897 nomen oblitum as a junior subjective synonym of the former.
• Structure: Slide-mounted adult female body oval-elongated, Anal lobes not protruding, with three fl agellate setae not uniformly distributed, either two on venter and one on dorsum. (Caballero, et al., 2026.)
• Biology: Living on roots of its host plant.
• General Remarks: Description and illustration of adult female by Hambleton (1976), Williams & Granara de Willink (1992) and by Kozár & Konczné Benedicty (2007). Detailed redescription, photographs and illustration in Caballero, et al., 2026 This is the only described species of Rhizoecus from the Neotropical Region that has not been available for study. The original specimens have never been traced, but specimens from Guadelupe on coffee roots are probably known under a later name, which will have to be synonymized with R. eloti if Giard's material is eventualy found (Williams & Granara de Willink, 1992). Known in Florida in greenhouses only (Schneider & Powell, 2026).

Illustrations

Citations