taxonID	type	description	language	source
380A87DC7A15FF82DAA2FDDEB4CEFEAB.taxon	description	All specimens examined in this study are assigned to the genus Neocarus Chamberlin and Mulaik, 1942. Generic assignment is based on the following characteristics. In the adults 3 setae on the penultimate body segment (0 or> 3 in all Old World taxa and Amazonacarus Vázquez et al., 2014; shared with Caribeacarus Vázquez and Klompen, 2009 and Brasilacarus Vázquez et al., 2015), 4 – 6 foliate setae on the palp tarsus (> 7 in Caribeacarus and Brasilacarus), eupathidium zeta – 1 (ζ 1, the sensillum with a “ crown-like ” tip) in the main sensillar group of tarsus I (usually distal in Caribeacarus), and shiny fleshy setae with a whip-like tip absent from the palps (present in Brasilacarus). Within Neocarus the Argentinean specimens share a few characteristics suggesting that they may be related: palp tarsus in adults carries 6 large, foliate sensilla with 4 prominent lobes (usually 3 lobes) and both pairs of genital glands in the males are distinct, large, and similar in size (generally indistinct in cleared specimens, or anterior pair much smaller than posterior).	en	Vázquez, Maria Magdalena, Bernardi, Leopoldo Ferreira de Oliveira, Klompen, Hans (2020): The family Opilioacaridae (Acari: Parasitiformes) in Argentina, with description of two new species. Acarologia 60 (3): 505-519, DOI: 10.24349/acarologia/20204380, URL: http://dx.doi.org/10.5281/zenodo.4361407
380A87DC7A12FF8EDAA2FE5AB226FEEE.taxon	description	Figures 1 – 4, 5 A – B, 6 – 7, 8 A	en	Vázquez, Maria Magdalena, Bernardi, Leopoldo Ferreira de Oliveira, Klompen, Hans (2020): The family Opilioacaridae (Acari: Parasitiformes) in Argentina, with description of two new species. Acarologia 60 (3): 505-519, DOI: 10.24349/acarologia/20204380, URL: http://dx.doi.org/10.5281/zenodo.4361407
380A87DC7A12FF8EDAA2FE5AB226FEEE.taxon	diagnosis	Diagnosis — Palp genu with ~ 8 p - type setae, palp tarsus with 6 foliate setae with 4 rounded lobes each, and 15 ch - type sensilla. Sexual dimorphism in setation of prodorsal shield absent. Sternal setae st 2 and st 3 with attenuate tips. Pregenital region in male with 8 – 9 setae, mostly thick, ribbed and blunt, but a few lightly ribbed and tapering. Pregenital region in female without setae, genital region with 12 – 13 thick, lightly ribbed and barbed, tapering setae. Genital region in male with 7 – 9 barbed, lightly ribbed, tapering setae. Ovipositor without terminal sensilla but with three very distinct rounded terminal lobes and a bilobed membranous cover.	en	Vázquez, Maria Magdalena, Bernardi, Leopoldo Ferreira de Oliveira, Klompen, Hans (2020): The family Opilioacaridae (Acari: Parasitiformes) in Argentina, with description of two new species. Acarologia 60 (3): 505-519, DOI: 10.24349/acarologia/20204380, URL: http://dx.doi.org/10.5281/zenodo.4361407
380A87DC7A12FF8EDAA2FE5AB226FEEE.taxon	description	Description — Description based on 4 females and 4 males. Immatures not available. Gnathosoma Chelicera (Figure 1 A). Basal segment in adults with 1 seta (cht), fixed digit with 3, one of those (ch 1 ′) large, thick. Seta cht on basal segment of male chelicera shorter than seta ch 1 ″ on fixed digit. Setae ch 2 ′, ch 2 ″ and cht in females and males simple, with an attenuated tip, lightly serrate. Number of the ventral denticles on movable digit in both female and male one (Figure 1 A, arrow). Axial scale-like processes on movable digit in both female and male absent. Subcapitulum (Figure 1 B). All four pairs of paralabial setae present: pl 1 relatively large, conical, With ’ s organ (pl 2) membranous and discoid with a biramous core; rutellum pl (3) with one row of 5 teeth, inserted dorso-lateral; pl 4 small, inserted dorsal. With 4 circumbuccal (cb) and 8 – 11 median and subcapitular vm (, lvm, ldm, vp, lvp) setae. Seta vm 1 on the male subcapitulum present. Setae vm 1 plus one more lateral setal pair with blunt tips in both sexes, all other subcapitular setae with attenuate tips. Females generally with more subcapitular setae (10 – 11) than males (8 – 9). Lateral lips in all instars with distinct canals (ogl 1 and ogl 2). Palp (Figure 2). Trochanter with 4 large, ribbed, tapering setae (= r - type); femur with 9 – 13 papilliform (= p - type) and 15 r - type setae; genu with 8 p - type and 29 r - type setae; tibia with 30 long, lightly serrate and pointed setae, 27 r - type setae, and 2 long, thin, smooth sensilla. Tibia ventrally with one small indistinct gland; similar glands not observed for other palpal segments. Tibia and tarsus partially fused. Tarsus with 6 foliate d (- type), 8 v, 15 ch, and 9 sm sensilla, plus 3 solenidia (= s - type sensilla). Foliate sensilla each with 4 lobes with rounded, not filiform, tips. Modified sm 3 - type sensilla on male palp tarsus absent. Lyrifissures iα and iπ (not drawn) present. Pretarsus in shape of a pair of well-developed, smooth, sessile claws. Idiosoma Color. Dark blue and violet stripes on both body and legs. Body often with brownish background reflecting ingested food. Dorsum. Prodorsal shield in adults with 142 (M) – 164 (F) setae (N = 1 for both) and two pairs of lateral eyes. One pair of prodorsal lyrifissures present (Fig 3 A, grey arrow). Setae somewhat rounded and “ puffed-up ” (Figure 3, detail). Sexual dimorphism in setal shape or setal arrangement minimal (setae in female appear slightly larger). Dorsal idiosoma between the shield and the preanal segment without setae, but with numerous lyrifissures arranged in transverse rows. Setation of preanal segment limited to 1 dorsal, and 2 ventro-lateral setae. Anal valves with 10 – 16 setae each, with females showing higher numbers. Sternitogenital region (Figure 4). Sternal verrucae in adults each with 3 – 4 large, serrate and pointed, and 1 composite St (1) seta. Setae St 1 subequal in size to St 5. Setae St 2 and St 3 in females and males barbed, tapering to a fine tip. Remaining sternal region with 4 – 6 pairs of stout, ribbed, setae with rounded tips. Pregenital capsules each with 1 long, tapering seta (St 5) and 4 – 6 stout, ribbed, blunt-tipped setae. Pregenital and genital areas in female with, respectively, 0 and 12 – 13 sturdy, lightly ribbed and barbed, tapering setae (Figure 5 A). Male with 8 – 9 setae in pregenital region, mostly thick, ribbed and blunt, but a few lightly ribbed and tapering. Genital region 7 – 9 barbed, lightly ribbed, tapering setae (Figure 5 B – C). Ovipositor (Figure 6) without terminal setiform sensilla, but with three very distinct roundish terminal lobes. Without well sclerotized internal structures. Terminal area in one female (the only one where this area was fully visible) covered by a bilobed membrane / tectum (Figure 6 A, arrow). Male genital valves rectangular to curved, not triangular. Male glands well developed, both pairs of similar size (Figure 7). Legs Length of legs I – IV in females, respectively, 3937 – 4200, 2185 – 2302, 2106 – 2367, and 3240 – 3390 (N = 3), for males slightly shorter, respectively 3114 – 4162, 2025 – 2315, 2184, and 3065 (N = 1 – 3). Ratio of legs I to idiosoma in female approximately 1.8 – 1.9, legs IV to idiosoma about 1.5 – 1.7. Eupathidium ζ 1 on tarsus I inserted in dorsal sensory field; simple, without enlarged tip (Figure 8 A). Smooth setae on tibia, genu and femur I absent in the male. Solenidion ω a on legs II positioned on acrotarsus; ω a on tarsi III – IV absent. Solenidion ω d on basitarsi II – IV inserted in apical portion, partially in a cup inside the segment. Tip of setae ld of ambulacra II – IV in male smooth and attenuate. Ventral portion of acrotarsi II – IV with 3 pairs of setae; lateral portion with 2 pairs distinctly lateral, plus 1 pair of ventro-lateral and one pair of dorso-lateral setae. Setae lv of acrotarsi II – IV with one, rarely two, small barbs. Papilliform setae on dorsal portion of the basitarsi II – III present; thin, smooth setae present in male, absent in female. Coronidia present on basitarsi II – IV in all adults, absent on tibiae and genua II – IV. The condition of the specimens (poor clearing) prevented making accurate counts of the smooth setae and coronidia. Collection information — Type depository. Holotype female, MACN-AR 41730 (5 slides), MACN. Paratypes in OSAL (MACN-AR 4031 / 7) and MACN (all other). Locality data. Holotype female, MACN-AR 41730: Argentina, Misiones, Iguazu, Puerto Libertad, 173 m, 25.9189 ° S 54.5818 ° W, Oct 1954, coll. Schiapelli and De Carlo, no data on habitat. Same collection data: one female, MACN-AR 28898 / 3 (4 slides), one male MACN-AR 28898 / 2 (3 slides). Same locality, Oct 1953, coll. De Carlo, Schiapelli, Viana and Galiano, ex area with palm trees: two females, MACN-AR 4031 / 5 (2 slides), MACN-AR 4031 / 6 (1 slide), two males, MACN-AR 4031 / 7, MACN-AR 4031 / 8 (1 slide each).	en	Vázquez, Maria Magdalena, Bernardi, Leopoldo Ferreira de Oliveira, Klompen, Hans (2020): The family Opilioacaridae (Acari: Parasitiformes) in Argentina, with description of two new species. Acarologia 60 (3): 505-519, DOI: 10.24349/acarologia/20204380, URL: http://dx.doi.org/10.5281/zenodo.4361407
380A87DC7A12FF8EDAA2FE5AB226FEEE.taxon	etymology	Etymology — The specific name is derived from the primary collection locality, Misiones province, Argentina. Comparative notes — This comparison is limited to described Neocarus species from South America, with exception of N. ojasti Lehtinen, 1980. The description of N. ojastii does not provide sufficient detail for an adequate comparison. Comparisons with N. platensis are based on the original description by Silvestri (1905), the re-description by Van der Hammen (1969) based on Brazilian material, and comments and notes by Marcel Santos de Araújo based on examination of the type series. Neocarus misiones differs from N. coronatus Araújo et al., 2018 by the absence of distinct sexual differentiation in the setation of the prodorsal shield, and the presence of 6, rather than 4, d setae on the palp tarsus; from N. potiguar Bernardi et al., 2012, N. proteus Bernardi et al., 2013, and N. platensis by the absence, vs. presence, of pregenital setae in the female (Hammen, 1969; Araújo, pers. comm.). It differs from N. caipora Bernardi et al., 2014 and N. spelaion Bernardi and Borges-Filho, 2018 by the different shape of the genital setae in the female (sturdy and ribbed vs. thin and smooth), and the presence of 4, rather than 3 lobes on the d setae on the palp tarsus (N. caipora only).	en	Vázquez, Maria Magdalena, Bernardi, Leopoldo Ferreira de Oliveira, Klompen, Hans (2020): The family Opilioacaridae (Acari: Parasitiformes) in Argentina, with description of two new species. Acarologia 60 (3): 505-519, DOI: 10.24349/acarologia/20204380, URL: http://dx.doi.org/10.5281/zenodo.4361407
380A87DC7A1EFF8DDAA2FE56B1C4FB7F.taxon	description	Figures 5 D – F, 8 B, 9 – 13	en	Vázquez, Maria Magdalena, Bernardi, Leopoldo Ferreira de Oliveira, Klompen, Hans (2020): The family Opilioacaridae (Acari: Parasitiformes) in Argentina, with description of two new species. Acarologia 60 (3): 505-519, DOI: 10.24349/acarologia/20204380, URL: http://dx.doi.org/10.5281/zenodo.4361407
380A87DC7A1EFF8DDAA2FE56B1C4FB7F.taxon	diagnosis	Diagnosis — Palp genu without p - type setae, tarsus with 6 pairs of foliate setae with four rounded lobes each and 20 ch - type sensilla. Sexual dimorphism in setation of prodorsal shield distinct. Sternal setae St 2 and St 3 with attenuate tips. Pregenital area in males area with 6 – 10 stout, ribbed setae with relatively blunt tips, in genital area with 8 – 10 thinner, ribbed and tapering, setae. Females lacking pregenital setae, in genital area with 6 – 12 ribbed and tapering setae. Ovipositor lacking terminal sensilla, but with a very distinct pair of internal papillate hooks.	en	Vázquez, Maria Magdalena, Bernardi, Leopoldo Ferreira de Oliveira, Klompen, Hans (2020): The family Opilioacaridae (Acari: Parasitiformes) in Argentina, with description of two new species. Acarologia 60 (3): 505-519, DOI: 10.24349/acarologia/20204380, URL: http://dx.doi.org/10.5281/zenodo.4361407
380A87DC7A1EFF8DDAA2FE56B1C4FB7F.taxon	description	Description — Based on 4 females and 3 males. Immatures unknown. Gnathosoma Chelicera (Figure 9 A). Basal segment in adults with 1 seta, fixed digit with 3, one of which (ch 1 ”) distinctly larger. Seta cht on basal segment of male chelicera shorter than seta ch 1 ’’ on fixed digit. Setae ch 2 ’, ch 2 ’’ and cht in males simple, with an attenuated tip. One large, somewhat blunt, ventral denticle on movable digit in all adults. Axial scale-like processes on movable digit in both adults absent. Subcapitulum (Figure 9 B). All four pairs of paralabial setae present: pl 1 relatively large, conical, With ’ s organ (pl 2) membranous and discoid with a biramous core; rutellum pl (3) with one row of 5 teeth, inserted dorso-lateral; pl 4 small, inserted dorsal. With 4 circumbuccal (cb) and 6 – 7 median and subcapitular vm (, lvm, ldm, vp, lvp) setae. Seta vm 1 on the male subcapitulum present. Lateral lips with distinct canals (ogl 1 and ogl 2). Palp (Figure 10). Trochanter with 3 – 4 ribbed, tapering setae (= r - type); femur with 4 – 9 (6 – 9 in F; 3 – 6 in M) papilliform (= p - type) and 13 r - type setae; genu with 0 p - type and 43 r - type setae; tibia with 21 long, lightly serrate and pointed setae, 38 r - type setae, and 2 long, thin, and smooth sensilla. Tibia and genu ventrally with a small indistinct gland. Tibia and tarsus partially fused. Tarsus with 6 foliate (d - type), 10 v, 20 ch, and 10 – 12 sm sensilla, plus 3 solenidia (= s - type sensilla). Foliate setae each with 4 lobes and rounded, not filiform, tips. Modified sm 3 - type sensilla on male palp tarsus absent. Lyrifissures iα and iπ distinct. Pretarsus in shape of a pair of well-developed sessile claws. Idiosoma Color: Violet-blue with the usual banding pattern. Color observed for alcohol preserved specimens only. Dorsum. Prodorsal shield with two pairs of lateral eyes. One pair of prodorsal lyrifissures present. Setation in females and males consisting of, respectively, 186 – 204 and 218 – 242 setae. Sexual dimorphism in anterior portion of prodorsal shield (between anterior margin and lyrifissures) distinct, with a dense grouping of 56 – 62 setae in males (Figure 11 A) vs. 22 – 24 in females (Figure 11 B). Setal density in anterior area of females similar to that on the remaining shield. All setae somewhat rounded in appearance and “ puffed-up ” (Figure 11, detail). Dorsal idiosoma between the prodorsal shield and the preanal segment without setae, but with numerous lyrifissures arranged in transverse rows. Setation preanal segment limited to 1 dorsal, and 2 ventro-lateral setae. Anal valves with 12 – 16 stout, ribbed setae (14 – 16 in females; 12 – 16 in males). Sternitogenital region (Figure 12). Sternal verrucae in adults each with 2 – 3 large pointed, and 1 composite (St 1) setae. Setae St 1 subequal in size to St 5. Setae St 2 and St 3 in females and males barbed, tapering to a fine tip. Remaining sternal region with 4 – 6 pairs of stout, ribbed setae with blunt tips. Pregenital capsules each with 1 long, tapering seta (St 5) and 6 – 8 (female) or 5 – 6 (male) stout, ribbed setae. Pregenital and genital areas in female with, respectively, 0 and 6 – 12 smooth, tapering setae with rounded tip (Figure 5 D), male with, respectively, 6 – 10 stout, ribbed, and relatively blunt-tipped setae and 8 – 10 ribbed and tapering setae (Figure 5 E – F). Ovipositor without terminal setiform sensilla, but ventrally with a pair of papillate, retrorse spines connected to a papillate ridge (Figure 13 A, arrow). More dorsally two sets of sclerotized ridges, with the middle one connecting to form a W-shaped structure (Figure 13 B, arrow). Male genital valves rectangular or curved, not triangular. 100 µm.	en	Vázquez, Maria Magdalena, Bernardi, Leopoldo Ferreira de Oliveira, Klompen, Hans (2020): The family Opilioacaridae (Acari: Parasitiformes) in Argentina, with description of two new species. Acarologia 60 (3): 505-519, DOI: 10.24349/acarologia/20204380, URL: http://dx.doi.org/10.5281/zenodo.4361407
