Holostaspis Kolenati

Keum, Eunsun, Jung, Chuleui & Joharchi, Omid, 2017, New species and new records of the family Laelapidae (Acari: Mesostigmata) from Republic of Korea, Zootaxa 4353 (3), pp. 485-505 : 490

Genus Holostaspis Kolenati

Holostaspis Kolenati, 1858: 87 .

Type species— Holostaspis isotricha Kolenati, 1858: 87 .

Notes on the genus. Before the present study, 11 species regarded to belong to Holostaspis had been reported until now ( Berlese, 1904; Berlese, 1910; Wasmann, 1897; Willmann, 1956; Karg, 1979; Teng et. al., 1992; Evans & Till, 1966; Bregetova, 1977). The following species are considered as members of Holostaspis and used for the detailed diagnosis of the genus:

Holostaspis isotricha Kolenati, 1858 ; Holostaspis montanus ( Berlese, 1904) sensu Evans & Till (1966) [described as Laelaps (Oolaelaps) montanus ]; Holostaspis oophila Wasmann, 1897 sensu Evans & Till (1966) , Holostaspis parvulus ( Berlese, 1904) [described as Laelaps (Oolaelaps) parvulus ]; Holostaspis serpentis ( Karg, 1979) [described as Hypoaspis (Holostaspis) serpentis ]. Another six species may belong to Holostaspis , but were not considered in the generic diagnosis because they were not described in enough detail.

Diagnosis. Holodorsal shield often with paired Zx setae between J and Z setae, unpaired Jx setae also often present medially between J1 and J3; dorsal shield setae distally pointed, smooth or slightly serrated. Pre-sternal plates fused to sternal shield; sternal shield of female with a notch in middle anterior margin; concave in posterior margin, with three pairs of simple sternal setae, endopodal shields of coxae II and III fused with lateral margins of sternal shield. Anterior margin of sternal shield fused with endopodal shields. Metasternal setae st4 and associated pores iv3 always present, inserted on soft cuticle posterior to sternal shield. Genito-ventral shield slightly enlarged behind coxae IV, but long and extended posteriorly (about twice as long as wide), with one pair of setae (st5), no additional setae on edges of shield. Post-anal seta distinctly longer and thicker than para-anals. Anterior margin of epistome always smooth and curved or acuminate, palp tarsal claw two-tined; chelicera with small digits and reduced denticulation, corniculi short. Legs usually shorter than idiosoma.