Copidognathines (Acari: Halacaridae) In Mangroves Of Singapore. I. Description Of Three Species Author Bartsch, Ilse text Raffles Bulletin of Zoology 2006 2006-02-28 54 1 83 92 journal article 10.5281/zenodo.4507985 2345-7600 4507985 Genus Acarothrix Bartsch, 1990 Diagnosis. – Dorsum with five pairs of dorsal idiosomatic setae, pair of adanal setae on anal plate and three to four pairs of gland pores; posterior pair of pores on cones. Pair of ds- 3 in about middle of OC. AE with epimeral pores. Male genital sclerites with pair of external genital acetabula. Palps four-segmented, second segment with one seta, third segment without setae, fourth segment with three setae in basal whorl. Genua shorter than telofemora and tibiae. Trochanters I to IV with one seta each. Basifemur II with three setae. Tibiae I to IV with two ventral setae each. Tarsus I with large ventral seta and one or two small apical setulae; tarsi II to IV without ventral setae. All tarsi with pair of parambulacral setae. Solenidion of both tarsus I and II in dorsolateral position. All tarsi with paired claws, central sclerite with claw-like process. Type species . – Acarothrix palustris Bartsch, 1990 .