Indohya aphana Harvey &amp; Burger 2023, n. sp.
Creators: name: Harvey, Mark S.
name: Burger, Mieke A. A.
name: Abrams, Kym M.
name: Finston, Terrie L.
name: Huey, Joel A.
name: Perina, Giulia
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Pseudoscorpiones
Hyidae
Indohya
Indohya aphana

description: <i>Indohya aphana</i> Harvey &amp; Burger, n. sp. (Figs. 1–3, 13, 14) urn:lsid:zoobank.org:act: B5315882-3987-403D-8205-483A222E8413 <i>Indohya</i> species B: Harvey &amp; Volschenk 2008: 402–403, figs, 58, 59. <b>Material examined.</b> <i>Holotype tritonymph</i>. AUSTRALIA: <i>Western Australia:</i> Mesa K, 11 km SW. of Pannawonica, 21°42′34″S, 116°16′17″E, 27 June 2014 – 3 September 2014, litter trap, S. Lange (WAM T134268). <i>Other material</i>. AUSTRALIA: <i>Western Australia:</i> 1 tritonymph, Mesa K, c. 11 km SSW. of Pannawonica (borehole MEK1696; T1–12), 21°43′09″S, 116°15′48″E, 10 July–3 August 2006, subterranean litter trap, L. Mould, M. Greenham (WAM T78189); 1 deutonymph, Mesa K, 12 km SW. of Pannawonica, 21°43′22″S, 116°14′57″E, 24 October–30 November 2011, troglofauna trap, 25 m, P. Brooshooft, M. Delaney (WAM T120142; specimen consumed during DNA extraction); 1 tritonymph, Mesa K, 11 km SW. of Pannawonica, 21°43′22″S, 116°15′26″E, 18 September–13 November 2013, subterranean litter trap, S. Lange (WAM T131857); 1 protonymph, Mesa K, 11 km SW. of Pannawonica, 21°42′37″S, 116°16′10″E, 27 June 2014 – 3 September 2014, litter trap, S. Lange (WAM T134269; specimen consumed during DNA extraction); 1 protonymph, Mesa K, ca. 11.3 km SW. of Pannawonica, 21°43′08″S, 116°15′24″E, 28 May–15 July 2018, troglofauna trap, J. King, M. Greenham (WAM T146286); 1 nymph, Bungaroo, 20.6 km S. of Pannawonica, 21°49′28″S, 116°17′45″E, 15 April 2011, J. Alexander, S. Werner (WAM T114967; specimen consumed during DNA extraction). <b>Diagnosis.</b> <i>Indohya aphana</i> is a blind troglobite that differs from all other <i>Indohya</i> species for which sequence data are available by a synapomorphy in <i>COI</i> mtDNA: at base 220 there is a substitution to G. The four sequenced specimens differ from all other sequenced specimens of <i>Indohya</i> by 16.5–27.5% (Table 2). <b>Description (tritonymph).</b> <i>Colour (Fig. 13):</i> pale yellow-brown, pedipalps slightly darker. <i>Chelicera:</i> hand with 5 setae, movable finger with 1 sub-medial seta. <i>Pedipalp:</i> trochanter 2.38 ×, femur 4.88 ×, patella 3.03 ×, chela (with pedicel) 3.96 ×, chela (without pedicel) 3.75 ×, hand (without pedicel) 1.63 × longer than broad, movable finger 1.29 × longer than hand (without pedicel). Fixed finger with 7 trichobothria (Fig. 14B), <i>eb</i>, <i>esb</i>, <i>est</i>, <i>et</i>, <i>ib</i>, <i>ist</i> and <i>it</i> present; movable finger with 3 trichobothria; <i>b</i>, <i>st</i> and <i>t</i> present, <i>st</i> much closer to <i>t</i> than to <i>b</i>. Fixed chelal finger with 52 low, juxtadentate teeth, most rounded except for teeth 1–3 and 44–52 which are acute, movable chelal finger with ca. 16 low, juxtadentate teeth. <i>Cephalothorax:</i> carapace (Fig. 13A) 1.00 × longer than broad; with 12 setae, arranged 4: 0: 4: 2: 2, including posterior margin with 2 setae; smooth; without furrows; eyes absent. Coxal chaetotaxy 4: 4: 4: 4. <i>Legs:</i> femur + patella IV 4.09 × longer than broad; metatarsi and tarsi not fused. <i>Abdomen:</i> tergal chaetotaxy 4: 4: 4: 6: 6: 6: 6: 6: 6: 4: 4 (including 2 tactile setae): 2; sternal chaetotaxy 1: (2) 6 (2): (2) 5 (2): 7: 8: 7: 7: 7: 6: 4 (including 2 tactile setae): 2. <i>Dimensions (mm):</i> holotype (WAM T134268). Body length 1.30. Pedipalp: trochanter 0.250 / 0.105, femur 0.635 / 0.130, patella 0.455 / 0.150, chela (with pedicel) 1.010 / 0.255, chela (without pedicel) 0.955, hand (without pedicel) length 0.415, movable finger length 0.535. Carapace 0.460 / 0.460. Leg IV: femur + patella 0.450 / 0.110. <b>Description (protonymph).</b> <i>Colour:</i> very pale, yellow-white. <i>Chelicera:</i> hand with 4 setae, movable finger without seta. <i>Pedipalp:</i> trochanter 2.38 ×, femur 4.27 ×, patella 2.59 ×, chela (with pedicel) 3.93 ×, chela (without pedicel) 3.70 ×, hand (without pedicel) 1.67 × longer than broad, movable finger 1.29 × longer than hand (without pedicel). Fixed finger with 3 trichobothria (Fig. 14C), <i>eb</i>, <i>ist</i> and <i>et</i> present; movable finger with 1 trichobothrium, <i>t</i> present; fixed chelal finger with 23 low, juxtadentate teeth, basal teeth slightly enlarged; movable chelal finger without teeth. <i>Cephalothorax:</i> 1.28 × longer than broad; with 12 setae arranged 4: 0: 4: 2: 2; without furrows; eyes absent. Coxal chaetotaxy 1: 1: 1: 1. <i>Legs:</i> metatarsi and tarsi not fused. <i>Abdomen:</i> tergal chaetotaxy 4: 4: 4: 4: 4: 4: 4: 4: 4: 4: 4: 2; sternal chaetotaxy 2: (0) 2 (0): (1) 2 (1): 4: 4: 4: 4: 2: 4: 4 (including 2 tactile setae): 2. <i>Dimensions (mm):</i> WAM T146286. Body length 2.14. Pedipalp: trochanter 0.155 / 0.065, femur 0.320 / 0.075, patella 0.220 / 0.085, chela (with pedicel) 0.530 / 0.135, chela (without pedicel) 0.500, hand (without pedicel) length 0.225, movable finger length 0.290. Carapace 0.300 / 0.235. <b>Distribution and remarks.</b> This blind, troglobitic species is currently represented only by nymphal specimens but based on available sequence data is different from other species and appears as a distinct genetic lineage (Fig. 3). One of the tritonymphs of this species (WAM T78189) was described by Harvey and Volschenk (2007) as <i>Indohya</i> species B. The species was also previously known by WAM identification codes <i>Indohya</i> ‘PSE152’ and <i>Indohya</i> ‘PSE153’. The majority of the specimens of <i>I. aphana</i> have been collected from Mesa K, but one was taken from Bungaroo, ca. 13 km SSE. of Mesa K. This specimen is barely distinguishable from the Mesa K specimens using <i>COI</i> data (Figure 3; Table S4). <b>Conservation assessment</b>. Although Mesa K is an active iron ore mine site, specimens of <i>I. aphana</i> have been collected in habitats adjacent to the mine, as well as at Bungaroo, 13 km away. This extended distribution suggests that <i>I. aphana</i> may occur in adjacent sites in the Bungaroo Valley, and is unlikely to be threatened despite the presence of mining at Mesa K. <b>Etymology.</b> The specific epithet refers to the use of molecular sequence data to establish that this nymphal specimen represents a distinct species (<i>aphanes</i>, Greek, unseen, invisible, secret, obscure) (Brown 1956).
description: Published as part of <i>Harvey, Mark S., Burger, Mieke A. A., Abrams, Kym M., Finston, Terrie L., Huey, Joel A. &amp; Perina, Giulia, 2023, The systematics of the pseudoscorpion genus Indohya (Pseudoscorpiones: Hyidae) in Australia, pp. 1-119 in Zootaxa 5342 (1)</i> on pages 41-43, DOI: 10.11646/zootaxa.5342.1.1, http://zenodo.org/record/8323879
description: {"references": ["Harvey, M. S. &amp; Volschenk, E. S. (2007) The systematics of the Gondwanan pseudoscorpion family Hyidae (Pseudoscorpiones: Neobisioidea): new data and a revised phylogenetic hypothesis. Invertebrate Systematics, 21, 365 - 406. https: // doi. org / 10.1071 / IS 05030", "Brown, R. W. (1956) Composition of scientific words. Revised Edition. Smithsonian Institution Press, Washington, D. C., 882 pp."]}