From the subantarctic to the subtropics: a revision of the Davacaridae Kethley, 1977 (Acari: Trigynaspida: Mesostigmata) with the description of a new genus and three new species Author Walter, David Evans text Journal of Natural History 2004 2004-08-20 38 16 2033 2049 http://dx.doi.org/10.1080/00222930310001617733 journal article 10.1080/00222930310001617733 1464-5262 4676074 Genus Acanthodavacarus n. g. Type species. Acanthodavacarus klompeni , n. sp. Diagnosis. With the characteristics of the family and genital opening/ ovipore of female covered by four shields: mesogynial shield well developed, subtrapezoidal in shape; latigynial shields distinct and bearing two pairs of setae ( st5–6 ); pregenital shield inversely subtriangular, ornamented with punctae and bearing a pair of setae ( st4 ). Endogynial complex simple, Y-shaped, without punctate regions. Tritosternum with elongate collar and deeply divided laciniae. Dorsal setae short, densely pilose. Two pairs of large opisthosomal glands present, each with a pair of guard setae and on short, horn-like processes. Male genital opening with a pair of setae.