Lohmannella Trouessart 1901

• Main Author: Abé, Hiroshi
• Format: Text
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Trombidiformes; Halacaridae; Lohmannella; Antarctic; Rouen; Fosse; Newell; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.4889526; https://zenodo.org/record/4889526

Genus Lohmannella Trouessart, 1901 Type: Lohmannella falcata (Hodge, 1863) Diagnosis. Idiosoma wide and flattened. Dorsal and ventral plates large. Idiosoma with 5 pairs of Glps; Glp-2 sometimes on platelets within striated integument. Dorsum with 6 pairs of setae. Adanal setae present. AE with 3 or 4 pairs of setae. PE each with generally 4 or 5 setae. GA with Pgs. Sgs present on GS. GS furnished with external genital acetabula in brackishwater and freshwater species. Gnathosoma much longer than wide. Gnathosoma base without maxillary setae. Rostrum slender, parallel-sided, longer than gnathosomal base. Palpi 4-segmented, both adjacent or rarely separated from each other by width of P-1. P-2 with 2 dorsal setae; P-3 with a spur. Legs slender; Gn much shorter than adjoining segments. Lc I–IV crescent-like, without comb. Median claw undeveloped. The general structures of the genus is schematically shown in Fig. 4. Remarks. The genus was established by Trouessart in Trouessart & Neumann (1901). The genera Leptognathus Hodge, 1863 and Trouessartella Lohmann, 1901 are equivalent to this genus. The majority of species in southern hemisphere have large Glps on AD, OC, and PD, which are rare in northern hemisphere species. The genus has a cosmopolitan distribution and is widely distributed without regard to marine, brackishwater, and freshwater. References. Trouessart & Neumann (1901), Newell (1984), Bartsch (2006b, 2007b). : 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 208, DOI: 10.11646/zootaxa.4980.2.1, http://zenodo.org/record/4888860 : {"references": ["Trouessart, E. L. & Neumann, M. G. (1901) Note sur les Acariens marins (Halacaridae) recoltes par M. Henri Gadeau de Kerville dans la region d'Omonville-la-Rogue (Manche) et dans la fosse de la Hague (Juin - Juillet 1899). Bulletin de la Societe des Amis des Sciences Naturelles de Rouen, 36, 247 - 266.", "Hodge, G. (1863) Contributions to the marine zoology of Seaham Harbour. On some undescribed marine Acari. Transactions of the Tyneside Naturalists' Field Club, 5, 298 - 303.", "Lohmann, H. (1901) Fam. Halacaridae. Das Tierreich, 13, 273 - 305.", "Newell, I. M. (1984) Antarctic Halacaroidea. Antarctic Research Series, 40, 1 - 284.", "Bartsch, I. (2006 b) Halacaroidea (Acari): a guide to marine genera. Organisms Diversity & Evolution, 6, 1 - 104.", "Bartsch, I. (2007 b) 5. Acari: Halacaroidea. In: Gerecke, R. (Ed.), Susswasserfauna von Mitteleuropa. 7 / 2 - 1. Chelicerata: Araneae, Acari I. Elsevier, Spektrum, Munchen, pp. 113 - 157."]}