Cereusacarus, Xue, Wang, Song & Hong, 2009

XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), Zootaxa 2253 (1), pp. 1-95 : 51-52

Cereusacarus gen. nov.

Type species. Cereusacarus maopingensis sp. nov.

rear shield margin; dorsal pedipalp genual seta (d) divided; all coxal setae present; legs with usual series of setae; opisthosoma with three ridges, middorsal ridge ends in a furrow, first 5 dorsal annuli almost as wide as prodorsal shield and the following annuli narrow abruptly, opisthosoma with all usual setae, dorsal and ventral annuli not differentiated; empodium entire; setae h1 present.

Etymology. The genus designation is derived from the combination of cereus, Latin, means taper (the shape of the body) and acarus, masculine in gender.

Notes. The new genus is assigned to Eriophyoidea, Eriophyidae , Phyllocoptinae , Phyllocoptini . The new genus is similar to Neodicrothrix Mohanasundaram, 1984 , but can be differentiated from the latter by the tibial, genu II, opisthosomal d and e setae present (tibial, genu II, opisthosomal d and e setae absent in Neodicrothrix ), dorsal and ventral annuli with microtubercles (dorsal and ventral annuli smooth in Neodicrothrix ), dorsal opisthosoma with three ridges (dorsal opisthosoma evenly rounded in Neodicrothrix ). The new genus is also similar to Leipothrix Keifer, 1966c , but can be differentiated from the latter by femur setae present on both legs (femur setae absent from both legs in Leipothrix ).