Hutufeideria phuketensis, Kontschán, Jenő, 2011

Kontschán, Jenő, 2011, Uropodina mites with unusual chelicerae from Thailand (Acari: Mesostigmata), Zootaxa 2984, pp. 54-66 : 59-61

publication ID 10.5281/zenodo.278344


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scientific name

Hutufeideria phuketensis

sp. nov.

Hutufeideria phuketensis sp. nov.

( Figs 23–28 View FIGURES 23 – 28 )

Material examined. Holotype. Female, Thailand, Phuket Province, Koy Siray, 50 m., 15.VIII.2000; sifting in old secondary forest, P. Schwendinger coll. Paratypes. Two females; same data as holotype.

Description. Female. Length of idiosoma 800–820 µm, width 530–550 µm (n=3). Shape oval, dorsally domed and strongly sclerotised.

Dorsal aspect of idiosoma ( Fig. 23 View FIGURES 23 – 28 ). Dorsal and marginal shields completely separated, dorsal setae in central area short (ca. 35–45 µm), smooth, first pair of ventral and dorsal setae long (ca. 52–57 µm), marginally pilose ( Fig. 24 View FIGURES 23 – 28 ). Setae near caudal margin long (ca. 80–90 µm), smooth and setiform, except posteriormost setae in row J short (ca. 9–10 µm) and needle-like. Two pairs of smooth setiform setae (ca. 35 µm) present anterior to caudal setae of dorsal plate. Dorsal shield covered by irregular pits. Marginal shield with ca. 43–50 µm long, smooth, setiform setae. Marginal shield covered by irregular pits. Postdorsal shield present, with a large, weakly sclerotised, membranous caudal appendix.

Ventral aspect of idiosoma ( Fig. 25 View FIGURES 23 – 28 ). Surface of sternal shield smooth. Setae St1 (ca. 10 µm) smooth and needle-like, situated near anterior margin of sternal shield, St2 and St3 (ca. 13 µm) marginally pilose, St2 at level of posterior margin of coxae II, St3 at level of central region of coxae III. St4 (ca. 20 µm) needle-like and smooth, situated at level of anterior margins of coxae IV, St5 (ca. 70 µm) near basal edges of genital shield. Ventral shield covered by irregular pits. Ventral setae smooth and setiform (ca. 60–75 µm), except three pairs of wide setae (ca. 70 µm) near caudal margin of body. Adanal setae ad1 long (ca. 70 µm), ad2 short (ca. 30 µm), both smooth and setiform, postanal setae wide. Pedofossae deep, their surface smooth, without separate furrows for tarsi IV. Genital shield linguliform, anteriorly rounded, its anterior surface with web-like sculptural pattern. Stigmata situated between coxae II and III, peritremes M-shaped. Tritosternum with narrow base, laciniae subdivided into marginally pilose branches.

Legs. Leg I without ambulacral claws, all legs with smooth and pilose setae.

Gnathosoma ( Fig. 26 View FIGURES 23 – 28 ). Hypostomal setae h1 (ca. 45 µm) subdivided into two branches, one smooth, one marginally pilose, h2 not clearly visible, h3 (ca. 10 µm) and h4 (ca. 18 µm) marginally pilose. Corniculi short and horn-like with several lateral spines, internal malae longer than corniculi, marginally pilose. Epistome apically pilose ( Fig. 27 View FIGURES 23 – 28 ). Chelicerae long, with one tooth on each digit, one needle-like sensory organ on movable digit, internal sclerotised node present ( Fig. 28 View FIGURES 23 – 28 ).

Etymology. The name of the new species refers to the island where it was collected.

Remarks. The web-like sculptural pattern on the genital shield of the female, the alveolar pits on the ventral shield, and the presence of wide setae ventral setae is an unique character combination in the genus Hutufeideria .

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