Scaptognathus kunzi Bartsch, 1988

Abé, Hiroshi, 2021, Taxonomic review of the subfamily Lohmannellinae (Acari: Trombidiformes Halacaridae) with morphological comparisons among genera, Zootaxa 4980 (2), pp. 201-255 : 230-231

Scaptognathus kunzi Bartsch, 1988

Diagnosis. Glp-1 posterior to Ds-1. Ds-2 on membranous cuticle. PE with 1 dorsal seta. GA tripartite in female. Female with 6 Pgs and 4 Sgs. Tr I–IV with 1-1-1-1 setae; Bf I–IV with 2-2-2-1 setae; Tf I–IV with (4,5)-(3,4)-2- 2 setae, 2-0-0-0 Bp setae; Gn I–IV with 4-5-3-3 setae, 2-1-0-0 Bp setae; Tb I–IV with 9-6-7-7 setae, 6-3-4-4 Bp setae; Ta I–IV with 3-3-3-3 dorsal setae, 1-1-0-0 Bp setae. Lc I with unidentate accessory process. Idiosoma length 202–207 in female. Idiosoma width 132 ( idiosoma length 207). Gnathosoma length 135 in female ( idiosoma length 207). Gnathosoma width 69 ( gnathosoma length 135) in female. Ratio of gnathosoma to idiosoma 0.65 in female. Ratio of P-2 to P-1 2.71.

Remarks. This species resembles S. newelli in having a tripartite GA in female, however, differs from the latter in the number of Bp setae on Tb I-IV and Ta I–IV, 6-3-4-4 and 1-1-0-0, respectively. Female is known.

Habitat. Littoral–Sublittoral zones: Coarse sands, gravels, and coral rubbles at a depth of 0–10 m.

Distribution. North Pacific Ocean: Kawaihae Bay (Hawaii Is.) [ USA]. South Pacific Ocean: Elizabeth Reef, Pandroa Reef, Great Palm Is., Yonge Reef (Great Barrier Reef) [ Australia].

References. Abé (1990c), Abé & Green (1994), Bartsch (1988a), Otto (2000b).

Depository. BMHH, QMS, ANIC, ZIZMH.