Etymology: The names Acholeplasmataceae and Acholetoplasmatales are derived from the Greek a = not, cholè = bile and plasma = anything moulded or formed.

Cholesterol, a sterol, is an important component of the cell membrane of mycoplasmas, whereas in acholeplasmas and in bacteria in general it is absent.

They are transmitted by sap-sucking insects (primarily leafhoppers, planthoppers, and psyllids [3] ), living in the gut, haemolymph, salivary gland and other organs.

[1][5] In view of the many properties in which the acholeplasmas distinguish from species in Mycoplasmataceae and Spiroplasmataceae, Freundt et al. proposed in 1984 to elevate the family Acholeplasmataceae to the ordinal rank Acholeplasmatales, thus separating it from Mycoplasmatales.

[7] The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[8] and National Center for Biotechnology Information (NCBI)[9] Mycoplasma feliminutum Heyward, Sabry & Dowdle 1969 Haploplasma Mariniplasma Alteracholeplasma Paracholeplasma Anaeroplasma Acholeplasma "Ca.