Retracrus johnstoni Keifer, 1965

Navia, Denise, Gondim, Manoel G. C. & De, Gilberto J., 2007, Eriophyoid mites (Acari: Eriophyoidea) associated with palm trees, Zootaxa 1389, pp. 1-30 : 20

Retracrus johnstoni Keifer, 1965

Type host: Chamaedorea sp.

Type locality: Mexico intercepted at USA (San Antonio, Texas)

Other host: Astrocaryum aculeatissimum (Schott) Burret ; Bactris gasipaes Kunth ; Bactris setosa Mart. (this publication); Chamaedorea costaricana Oerst. ( Ochoa et al. 1994) ; Chamaedorea elegans Mart. ( Schliesske 1988) ; Cocos nucifera L. ( Santana et al. 1994); Elaeis guineensis Jacquin; Euterpe edulis Mart. ; Euterpe oleracea Mart. ; Euterpe precatoria Mart. ; Euterpe sp.; Geonoma gamiovora Barb. Rodr. ; Geonoma pohliana Mart. ; Geonoma schottiana Mart. ; Mauritia flexuosa L.; Scheelea sp. (this publication); and Syagrus romanzoffiana (Cham.) Glassm. ( Santana & Flechtmann 1998)

Other locality: Brazil (Amazonas, Sergipe, São Paulo) ( Santana et al. 1994; this publication); Costa Rica ( Schliesske 1988)

Plant part: upper leaf surface

Remarks: type species of the genus (Amrine Jr. & de Lillo 2003). Found in dense colonies, causing spots that are dark when observing the lower surface, but yellowish when observing the upper surface.