Lohmannella Trouessart 1901
Creators
Description
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).
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Halacaridae
- Genus
- Lohmannella
- Kingdom
- Animalia
- Order
- Trombidiformes
- Phylum
- Arthropoda
- Scientific name authorship
- Trouessart
- Taxon rank
- genus
- Taxonomic concept label
- Lohmannella Trouessart, 1901 sec. Abé, 2021
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.