Lohmannella bihamata Viets 1950

Lohmannella bihamata Viets, 1950 Diagnosis. One cornea present. Glp-1 same level as Ds-1. Ds-2 and Ds-3 on membranous cuticle. Two dorsal setae on PE. Female with 20 Pgs and 4 Sgs. Male with ca.85 Pgs and 6(?) Sgs. Tr I–IV with 1-1-1-1 setae; Bf I–IV with 3-3-3-2 setae; Tf I–IV with 7-7-5-4 setae; G...

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Bibliographic Details
Main Author: Abé, Hiroshi
Format: Other/Unknown Material
Language:unknown
Published: 2021
Subjects:
Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Halacaridae
Lohmannella
Lohmannella bihamata
Newell
Husvik Harbour
South Atlantic Ocean
Online Access:https://zenodo.org/record/4889536
https://doi.org/10.5281/zenodo.4889536
Description
Summary:Lohmannella bihamata Viets, 1950 Diagnosis. One cornea present. Glp-1 same level as Ds-1. Ds-2 and Ds-3 on membranous cuticle. Two dorsal setae on PE. Female with 20 Pgs and 4 Sgs. Male with ca.85 Pgs and 6(?) Sgs. Tr I–IV with 1-1-1-1 setae; Bf I–IV with 3-3-3-2 setae; Tf I–IV with 7-7-5-4 setae; Gn I–IV with 7-(6,7)-4-3 setae, (2, 3)-2-0-0 Bp setae; Tb I–IV with (12,13)-(11,12)-7-8 setae, 6-3-1-4 Bp setae; Ta I–IV with 3-3-4-3 dorsal setae, 2-2-2-2 Bp setae. Lc I with multidentate heavy accessory process. Idiosoma length 403 in female, 500 in male. Idiosoma width 320 (Idiosoma length 403). Gnathosoma length 231 in female, 286 in male. Ratio of gnathosoma to idiosoma 0.59 in male. Ratio of P-2 to P-1 3.29. Remarks. This species is characterized by Lc I–IV with accessory process. Although P-3 lacks ventral spine according to the original figure, it will be probably due to overlooking. Female and male are known. Non-type specimen is deposited in the Vites Collection (No.7220) of ZIZMH. Habitat. Littoral zone: Gravels, crevices, kelp holdfasts, and algae (Palmeria georgica, Rhodophyta). Distribution. South Atlantic Ocean: Berkeley Strait (Falkland Is.), Husvik Harbour (South Georgia) [UK]. References. Bartsch (1977b), Imamura (1968), Newell (1984), Pugh & Bartsch (1993), Viets (1950a). Depository. NRMS. Published as part of Abé, Hiroshi, 2021, Taxonomic review of the subfamily Lohmannellinae (Acari: Trombidiformes Halacaridae) with morphological comparisons among genera, pp. 201-255 in Zootaxa 4980 (2) on page 210, DOI:10.11646/zootaxa.4980.2.1, http://zenodo.org/record/4888860

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