Depressorotunda gen. nov., a new remarkable Uropodina mite genus from South-East Asia with description of four new species (Acari: Mesostigmata) Author Kontschán, Jen ỏ text Journal of Natural History 2010 2010-05-24 44 23 - 24 1461 1473 http://dx.doi.org/10.1080/00222931003678784 journal article 10.1080/00222931003678784 1464-5262 4652234 Depressorotunda thailandica sp. nov. ( Figures 3 A–C and 5) Material examined Holotype : male, Thailand , Khao Yai National Park , NE from Bankok , near Air Force check point, 1150 m , 28 November 1985 , leg. Burchard and Löbl. Holotype is stored in alcohol ( NHMG ) . Paratype : one male, with the same collection data as in holotype . Paratype with gold–palladium coating is stored on aluminium stub ( HNHM ) . Description Male. Length of idiosoma 350–360 µm , width 300–310 µm ( n = 2). Shape oval, posterior margin rounded. Dorsal idiosoma ( Figures 3A and 5A ). Most of dorsal setae smooth and setiform ( c . 14–20 µm ), only two pairs of posteriormost setae with fine distal pilosity ( Figure 5B ). Dorsal surface smooth, without sculptural ornamentation. Ventral idiosoma ( Figures 3B and 5C ). Sternal shield without ornamentation. Sternal setae smooth, short and wide ( c . 10–14 µm ), with one pair of additional setae. Ventral setae with the following position: V1 placed near the basis of the genital shield on the ventral shield; V2, V3 and V4 can be found on the lateral margins of the ventral cavity. All of ventral setae are long ( c . 28–41 µm ), smooth and setiform. Ventral cavity large, anterior margin can be found near the posterior margin of genital shield, posterior margin near the anus. Genital shield circular, situated at the level between coxae III–IV and placed on the sternal shield. Stigmata can be found at the level between coxae II and III, peritremes hook-shaped. All legs with a pair of ambulacral claws and with smooth simple setae ( Figure 3C ). Tritosternum ( Figure 5D ) with narrow basis and pilose bifurcate lacinia. Figure 5. Depressorotunda thailandica sp. nov. , male. (A) Dorsal idiosoma; (B) posteriormost dorsal setae; (C) ventral idiosoma; (D) tritosternum; (E) ventral view of gnathosoma; (F) epistome. Scale bars: 100 µm (a), 50 µm (b). Gnathosoma ( Figure 5E ). Internal malae short and smooth. Labrum pilose apically. Hypostomal setae h1 long ( c . 48 µm ), smooth, setiform; h2 short ( c . 21 µm ), smooth and setiform; h3 ( c . 19 µm ) shorter than h1, setiform and serrate marginally; h4 short ( c . 17 µm ), setiform, with serrated margins. Epistome with serrated margin, distal part bears short hairs ( Figure 5F ). Palp with smooth and simple setae, but trochanter bears two modified setae ( Figure 5E ). Chelicerae not clearly visible. Female, nymphs and larvae. Unknown. Etymology The name thailandica refers to the country ( Thailand ) of type locality .