New Oribatid Mites Of The Genera Pulchroppia And Lineoppia (Acari: Oribatida: Oppiidae) From Cat Tien National Park In Southern Vietnam Author Ermilov, S. G. Author Anichkin, A. E. text Acarologia 2011 2011-03-30 51 1 31 42 http://dx.doi.org/10.1051/acarologia/20111991 journal article 7366 10.1051/acarologia/20111991 1ad0b2e4-deae-43fe-b685-e4aec10b042f 2107-7207 4639873 Pulchroppia roynortoni n. sp. ( Figures 1 – 3 ) Diagnosis The new species is characterized by size of body, 315 – 365 x 149 – 166; smooth body surface; rostrum with two deep incisions, central protruding and two small lateral tubercles; sensillus with fivesix branches, each branch divided into two long cilia distally; ten pairs of short and smooth notogastral setae; leg setae a” and pv” on tarsi IVmodified, with radiate cilia distally. Description Measurements — Body length 365 ( holotype ), 315 – 365 (mean 336, 12 paratypes ); body width 166 ( holotype ), 149 – 166 (mean 159, 12 paratypes ). Females slightly larger than males: body length of females ( holotype and four paratypes ) 348 – 365 (mean 355), body width of all females ( holotype and four paratypes ) 166; body length of males (eight paratypes ) 315 – 348 (mean 328), body width of males (eight paratypes ) 149 – 166 (mean 155). Integument — Body color light brown to brown. Surface of body smooth. Distinct polygonal sculpturing in anogenital region absent. Prodorsum — ( Figure 1A, C ; Figure 2A–D ). Rostrum with two deep incisions, central protruding and two small lateral tubercles ( Figure 2A ). Costular lines slightly developed. Small median tubercles of interbothridial region and lateral tubercles of postbothridial region directed towards dorsosejugal scissure, rounded posteriorly. Rostral ( ro , 24 – 28), lamellar ( le , 12), interlamellar ( in , 12 – 20) and exobothridial ( ex , 8) setae setiform, thin, smooth. Sensilli ( ss , 53 – 61) with five-six branches, each branch divided into two long cilia distally. Notogaster and lateral part of body — ( Figure 1A, C ). Ten pairs of notogastral setae. Setae c very short (2 – 4), others setae longer (12 – 16), straight, thin, smooth. Lyrifissures ( ia , im , ip , ih , ips ) welldeveloped, long. Opisthosomal gland opening indistinct. Discidia ( di ) strongly, triangular. Anogenital region — ( Figure 1B ; Figure 2E, F ). Two pairs anal ( an 1 , an 2 , 8 – 12), three pairs adanal ( ad 1 - ad 3 , 12), one pair aggenital ( ag , 6 – 8) and five FIGURE 1: Pulchroppia roynortoni n. sp. A – dorsal view, legs partly removed; B – ventral view, legs removed; C – lateral view, legs partly removed, gnathosoma and epimeral setae removed. Scale bars (A + B, C) 100 µm. FIGURE 2: Pulchroppia roynortoni n. sp. A – rostrum and rostral setae; B – lamellar seta; C – interlamellar seta; D – sensillus; E – genital plate, right; F – anal plate, right; G – ovipositor; H – subcapitulum; I – palp; J – chelicera. Scale bars (A, D – J) 20 µm, scale bar (B + C) 10 µm. Acarologia 51(1): 31–42 (2011) FIGURE 3: Pulchroppia roynortoni n. sp. A – leg I, without trochanter, left, paraxial view; B – leg II, without trochanter, left, paraxial view; C – leg III, right, paraxial view; D – leg IV, right, paraxial view. Scale bar (A + B + C + D) 50 µm. pairs genital ( g 1 - g 5 6 – 8) setae, thin, smooth. Lyrifissures iad well-developed, in typical position for genus. Anterior part of genital plates with short, triangular projections and with rectangular concavity between them. Ovipositor ( Figure 2G ) elongate, narrow (89 – 93 x 16); length of lobes 24 – 28, length of cylindrical distal part (bDp) 65. Lobes with 12 pairs thin, smooth setae; ψ 1 ≈ τ 1 (20 – 24) longer than ψ 2 ≈ τa ≈ τb ≈ τc (16). Setae k absent. Epimeral region — ( Figure 1B ). Setae 3c and 4c 24, setiform, curved, barbed. Others setae shorter (12 – 16), straight, smooth. Setae 3a set adjacent to small tubercles. Setae 3c set on small apophyses laterally. Gnathosoma — ( Figure 2H–J ). Subcapitulum longer than wide: 86 – 102 x 61 – 69. Hypostomal setae setiform, smooth; a and h (14 – 16) shorter than m (24). Lateral lips wide and rectangular distally, adoral setae absent. Palps (length 53 – 57) with setation 0-2-1-3-8(+1ω). All setae (except on tarsi) with long cilia (on femora and genua) or barbs (on tibiae). Palptarsal solenidion very long, thickened, lying adjacent to acm distally. Chelicerae (length 82 – 94) chelate-dentate, with small thorn on dorsal side. Cheliceral setae setiform, barbed, cha (20) slightly longer than chb (16). Legs — ( Figure 3 ). All legs with one simple claw. Formulae of leg setation and solenidia: I (1-5-2-4- 20) [1-2-2], II (1-5-2-4-15) [1-1-2], III (2-3-1-3-13) [1- 1-0], IV (1-2-2-3-10) [0-1-0]; homology of setae and solenidia indicated in Table 1 . Setae (except p and famulus) with cilia or barbs. Setae a” and pv” on tarsi IV modified in all specimens, with radiate cilia distally. Setae p on tarsi II – IV absent. Famulus short, dilated distally. Solenidia ω 1 and ω 2 on tarsi I, ω 1 and ω 2 on tarsi II, φ 1 on tibiae II, φ on tibiae IV, σ on genua III thickened, rod-like. Others solenidia setiform, straight, with thinner tips, blunt-ended. Material examined — Holotype (female) and 12 paratypes (eight males and four females) were obtained from southern Vietnam , 11°25’ N , 107°25’ E , 149 m a.s.l. , in dark loamy soil of Lagerstroemia forest, February-March 2009, collected by A.E. Anichkin. Type deposition — The holotype is deposited in the collection of the Zoological Institute of the Russian Academy of Sciences , St. Petersburg , Russia ; 11 paratypes are deposited in the collection of Siberian Zoological Museum , Novosibirsk , Russia ; one paratype are in the personal collection of the first author. Etymology — The specific name is dedicated to our colleague, the acarologist Roy A. Norton, Syracuse N.Y., USA . Distribution — At present, this species is only known from Cat Tien National Park of southern Vietnam . Remarks — Pulchroppia roynortoni n. sp. clearly differs from all the species of Pulchroppia ( P. burckhardti Mahunka, 1987 from Borneo, P. elegans Hammer, 1979 from Java, P. granulata Mahunka, 1988 from Oriental region, P. malapectinata (Corpuz- Raros, 1979) from Philippines , P. pendula ( Balogh, 1970 ) from Sri Lanka , P. ramifera Wang and Li, 1997 from China — see Wang, Li and Zheng 1997 —, P. sculpturata Mahunka, 2008 from Thailand ) by the specific structure of rostrum (with two deep incisions, central protruding and two small lateral tubercles in new species; rounded in the other species) and the morphology of sensillus (each branch divided into two long cilia distally in new species; not divided or only partially divided in the other species).