Lohmannella cygna 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 : 211

Lohmannella cygna Bartsch, 1988

Diagnosis. Corneae absent. Glp-1 same level as Ds-1. Ds-2 on membranous cuticle. Ds-3 on margin of PD. Three dorsal setae on PE. Female with 16–20 Pgs and 8 Sgs. Tr I–IV with 1-1-1-1 setae; Bf I–IV with 3-3-3-3 setae; Tf I–IV with 10-10-8-6 setae; Gn I–IV with 10-10-6-8 setae, 5-1-0-0 Bp setae; Tb I–IV with 15-13-11-11 setae, 8-6-6-6 Bp setae; Ta I–IV with 3-3-4-3 dorsal setae, 2-3-3-3 Bp setae. Lc I smooth, without accessory process. Idiosoma length 515 in female. Idiosoma width 422 in female. Gnathosoma length 484 in female. Ratio of gnathosoma to idiosoma 0.94. Ratio of P-2 to P-1 3.75.

Remarks. The species is characterized by adanal setae on the anal papilla, long and ventrally convex P-2, slender legs, Tb I with 8 Bp setae, and Ta I–IV with 2-3-3-3 Bp setae. Single female is known.

Habitat. Bathyal zone: Bottom sediment at 1427–1643 m depth.

Distribution. South Atlantic Onean: 9°05’S, 12°17’E – 8°51’S, 12°15’E (Off Luanda).

Reference. Bartsch (1988b).

Depository. USNMNHW.