Description of an arboreal oribatid mite species of the genus Ovobates (Acari, Oribatida, Oribatulidae), based on adult and nymphs from Vietnam

The genus Ovobates (Oribatida, Oribatulidae) comprises two species distributed in the Oriental region. A new species— Ovobates ochrocarpicus sp. nov. —is described, based on adult and nymphal instars, collected from branches of the ochrocarp tree in southern Vietnam. The adult of the new species is characterized by the presence of the five pairs of notogastral porose areas and the epimeral formula 3-1-3-3.

The nymphs of the new species are characterized by presence of clavate bothridial seta; setiform interlamellar seta; short, setiform, thin gastronotic setae c 1, c 2, da, la; medium-sized to long, setiform, gastronotic setae dm c 3, lm, p 2, and p 3; medium-sized, bacilliform gastronotic setae dp, h 1, and h 3; long, subflagellate, gastronotic setae lp, h 2, and p 1; epimeral formula 3-1-2- 2 in tritonymph; and seven setae on the leg tarsus IV in protonymph.

The generic diagnosis and a morphological comparison of adults and juvenile instars of the known species of Ovobates are presented.