Arrenurus (Truncaturus) minutus, Smit, Harry & Pesic, Vladimir, 2006

Smit, Harry & Pesic, Vladimir, 2006, New records of the water mite genus Arrenurus from Iran, with the description of two new species from Iran and Cyprus (Acari, Hydrachnidia, Arrenuridae), Zootaxa 1152, pp. 59-68 : 66-67

publication ID

https://doi.org/ 10.5281/zenodo.172191

DOI

https://doi.org/10.5281/zenodo.6258589

persistent identifier

https://treatment.plazi.org/id/921687B7-2A0C-4436-2418-768CA1C3FE09

treatment provided by

Plazi

scientific name

Arrenurus (Truncaturus) minutus
status

sp. nov.

Arrenurus (Truncaturus) minutus spec. nov.

( Figs. 13–16 View FIGURES 13 – 16 )

Material examined: Holotype: Male, IR82, Gilan Province, Bandar Anzali Lagoon, 16 June 2005, leg. Pesic ( MNHP). Paratypes: 1 male ( ZMAN), 2 females ( ZMAN, MNHP), same data as holotype.

Description

Male: Idiosoma 575 (602) µm long and 413 (421) µm wide. Dorsal shield incomplete, 300 µm wide. Posterior margin of idiosoma with a very faint indentation. D4 close to posterior end of dorsal furrow. Genital plates almost four times as long as wide, not reaching to lateral idiosoma margin. Lengths of PI­PV: 26, 48, 38, 58, 33; PII with two medial setae. Lengths of I­leg­4­6: 84, 86, 86. Lengths of IV­leg­4­6: 96, 108, 106; IV­leg­ 4 without a spur. Third and fourth legs with numerous swimming setae.

Female: Idiosoma 725 (680) µm long and 579 (535) µm wide. Idiosoma egg­shaped, anterior margin convex, posterolateral corners absent. Dorsal shield complete, 575 µm long and 433 µm wide. Medial margins of fourth coxal plates longer than medial margins of third coxal plates. Medial distance of fourth coxal plates a little bit less than width of two genital valves. Genital field located halfway between posterior margin of fourth coxal plates and posterior idiosoma margin. Genital plates short and broad. Lengths of PI­PV: 26, 56, 43, 65, 38; palp as in male. Lengths of I­leg­4­6: 96, 108, 95. Lengths of IV­leg­4­ 6: 130, 140, 126. Third and fourth legs with numerous swimming setae. Etymology: Named for its small size.

Remarks: The small size and the shape of the idiosoma almost without an indentation are diagnostic for the new species.

MNHP

Princeton University

ZMAN

Instituut voor Taxonomische Zoologie, Zoologisch Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Trombidiformes

Family

Arrenuridae

Genus

Arrenurus

SubGenus

Truncaturus

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