Pedrocortesella propinqua P.Balogh 1985
Creators: name: Hunt, Glenn S.
Publisher: name: Zenodo
Year: 1996
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Licnodamaeidae
Pedrocortesella
Pedrocortesella propinqua

description: <i>Pedrocortesella propinqua</i> P. Balogh Figs 10A-C,I, 39, 40 <i>Pedrocortesella propinqua</i> P. Balogh, 1985: 51, fig. 2A-D. <i>Pheroliodes propinqua.- Woas, 1992: 144</i>. Type material. New South Wales: HOLOTYPE adult, ANIC, Barrington Tops, near Salisbury, <i>Nothofagus moorei</i> leaf litter, temperate rainforest, 1520 m, G.B. Monteith, 10 February 1965. Material examined. New South Wales: AM KS4651O, SEM stub no. S/295, Allyn River Park near crossing of Allyn River, N. of Salisbury, 32°10'S 151°30'E, subtropical rainforest, berlesate bark scraped from trees, G.S.Hunt, 5 October 1993, 1 adult; AM KS43669 Mount Allyn, near Barrington Tops, 32°08'S 151°26'E bark scraped from <i>Nothofagus,</i> temperate rainforest, G.S. Hunt, 20 Sept. 1993, 13 adults; AM KS46518, SEM stub no. S/333 (ill.), same data, 3 adults; AM KS46511, SEM stub no. S/132, 15 km S. Kempsey beside Pacific Highway, 32°12'S 151°49'E, dry sclerophyll, berlesate leaf and bark litter from base of <i>Eucalyptus,</i> G.S.Hunt, 18 July 1992, 1 adult; AM KS43665, S. of Grafton beside Pacific Highway, 30°00'S 153°06'E, dry sclerophyll, berlesate leaf and bark litter, G.S.Hunt, 18 July 1992, 1 adult; AM KS46512, SEM stub no. <i>S/145,</i> same data, 3 adults; AM KS46513, SEM stub no. S/151-05 (ill.), S. of Casino beside Casino-Grafton road, 29°06'S 153°00'E, dry sclerophyll, ber1esate leaf and bark litter, G.S.Hunt, 18 July 1992, 1 adult; AM KS43668, same data, 1 adult; AM KS46514, SEM stub no. <i>S/239,</i> Echo Head Falls, Kanangra-Boyd National Park, 33°59'S 150°06'E, ANIC berlesate 856, litter near creek, L.Hill, 3 October 1982, 1 adult; AM KS46515 SEM stub no. <i>S/249,</i> same data, 1 adult; ANIC, same data, 1 adult; AM KS46516, SEM stub no. <i>SI</i> 246 (ill.), 9.6 km S. Gilgandra, 31°49'S 148°39'E, ANIC berlesate 89, L.A.Mound, 6 June 1968, 2 adults; AM KS43667 same data, 3 adults; ANIC, same data, 6 adults; AM KS46517, SEM stub no. <i>S/002</i> (ill.), Gulpa Island State Forest, Deniliquin, 35°43'S 145°00'E, River Red Gum flood plain, berlesate grass and soil, G.S.Hunt, July 1991, 1 adult; AM KS43668, same data but from base of tree in dry plot, 8 adults; AM KS46519, SEM stub no. <i>S/338</i> (ill.), Hartley Vale Beck, 33°32'S 150°14'E, leaf litter at foot of eucalypt in old cemetery, berlesate, G.S. Hunt, Easter 1992, 1 adult; AM KS43670, Tilbuster Hill, N. of Armidale, beside the New England Highway, 30°19'S 151°42'E, leaf litter, GS. Hunt, 11 June 1995, 1 adult; ANIC, 13 km S. of Collarenebri, 29°34'S 148°35'E, berlese extraction <i>Geijera</i> leaflitter, ANIC berlesate 88, L.A. Mound, 5 June 1968, 35 adults plus nymphs; AM KS46520 SEM stub no. <i>S/432,</i> same data, 1 adult; AM KS46521, SEM stub no. S/431, Liverpool Ranges, New England Highway near Murrurundi, 31°45'S 150°48'E, leaf litter, GS. Hunt, 11 June 1995, 1 adult. Queensland: AM KS46522, SEM stub no. <i>S/269,</i> Bulburin State Forest, via Builyan, 24°34'S 151°29'E, dry sclerophyll, berlesate bark scraped from trunks and litter, GS.Hunt, 6 July 1993 3 adults; QM, same data, 1 adult. South Australia: AM KS46523, SEM stub no. <i>S/208,</i> 4.8 km W. Parilla, 35°18'S 140°39'E, Mallee, ANIC berlesate 184, R.W. Taylor, 12 January 1970, 3 adults. <b>Diagnosis.</b> Body medium sized, length about 500-550 Ilm; scalps rarely (if at all) carried by adult; sensillus with long flattened blade; bothridium diamond-shaped; notogaster entirely foveate-reticulate, many foveae with pore; 5 pairs of long notogastral setae, notogaster without caudal notch when viewed from above; broad separation of genital and anal vestibules; genitoanal chaetotaxy 7:1:2:3, genital setae in arcuate file, level of insertion of <i>ad3</i> adjacent to proximal 30-40% of anal valve; claw stalk short. Redescription ADULT: <i>Body:</i> brown; length <i>()lm)</i> of 6 eastern coast specimens 520, 530, 530, 540, 550, 550 (mean 537). <i>Cerotegument:</i> crests of reticulations on prodorsum and notogaster and rim of bothridium with stellate tubercles of cerotegument which may coalesce giving a "stitched" appearance (Fig. 39B) or "buttressed-wall" appearance (Fig. 39 ID,F); foveae with scattered granules of cerotegument (Fig. 39B). Setae <i>ro</i> and <i>le</i> and notogastral setae usually with heavy, tapering ribbed encrustation of cerotegument along most their length (Fig. 39 F-I). Legs with strong buttressed walls of cerotegument forming an intricate, irregular "honey-comb" of high relief on all segments. <i>Prodorsum:</i> integument divided into 3 fields: anterior rostral field patterned by relatively loose polygonal reticulations; a larger middle field anterior to median transverse furrow with closely spaced, deep foveae each perforated by a pore and separated from each other by polygonal reticulations of high relief; a bothridial field of more complex topography with carinae and reticulations. <i>le</i> dorsolateral, distance between them about 0.66 distance between <i>ro,</i> not arising from large pit, <i>ro</i> ventrolateral. Pedotectal tooth gradually curving to blunt point. Bothridium closely abutting notogaster but wall not deeply excavated posteriorly (Fig. 39E), more or less diamond shaped with angles directed anterad, posterad, mesad and laterad; strong posterolateral carina arising from laterad angle removed from notogaster; sensillus length subequal to interbothridial distance, with long flattened tuberculate blade, broadest subdistally and rounded at end (Fig. 39D). Setae <i>in</i> small, set close to mesad angle of bothridium just inside edge of dorsosejugal furrow (Fig. 39E), spiniform but largely encased in cerotegument (Fig. 40E). <i>Exuvial scalps:</i> none seen. <i>Notogaster:</i> oval, length:width 370:260, 370:260, 390:310, 390:300, 410:310, 425:325. Intramarginal depression suboval or "vase-shaped", broadest and somewhat angular anteriorly, interrupted posteriorly; with steep external margin, internally sloping more gradually to central plateau. Dorsum entirely foveate-reticulate, many foveae with small eccentric pore (Fig. 39B). Posterior margin not invaginate when viewed from above, with slight mesal furrow and no prominent carina (though reticulations may become linear) ventral to setae <i>pi</i> when viewed posteriorly. Fissura <i>ia</i> subparallel and <i>im</i> and <i>ip</i> oblique-subperpendicular to sagittal plane. 5 pairs of long notogastral setae; <i>hi</i> widely separated but converging at their tips, each located well inside posterior margin at posterior end of intramarginal depression; <i>pi</i> inserted high on posterior flank, closer together than <i>hi; Ipx, p2x</i> and <i>p3x</i> arise at or just inside posterolateral margin, their insertions seen from above, <i>Ipx</i> closest to fissura <i>ip,</i> inserted lateral to it (Fig. 391). <i>Gnathosoma:</i> pedipalp tarsus with setae <i>(vt)</i> with short barbs, <i>cm</i> and <i>I"</i> barbs very short; apophysis supporting seta <i>aem</i> low; solenidion <i>omega</i> reaching to base of <i>aem.</i> Rutella basally with moderate concave flexure and buttressing, but without pointed mesad process; transverse striations absent (Fig. 40B). <i>Epimeral region:</i> with depressed area immediately anterior to genital valves. <i>Genitoanal region:</i> separation of anal and genital vestibules relatively broad but with interruption to ventral plate microsculpture, wide mesal isthmus without strong transverse grooves between the vestibules (Fig. 40A). Aggenital and adanal areas reticulate-foveate, some foveae with pores; genital and anal valves with smaller foveae of similar depth on both valves, no pores; posterior margin of anal valves often crenellate. Genitoanal chaetotaxy 7:1:2:3; genital setae in arcuate file, all except g7 removed from mesal suture, g5 most so; <i>gi</i> long and overlapping, inserted in a notch on anterior margin slightly removed from inner anterior corner of valve; g5 situated at about 0.5 valve length, g6 usually closer to g7 than to <i>g5,</i> g7 inserted in notch in inner posterior corner; setae <i>ag</i> inserted at level between g6 and <i>g7;</i> setae <i>adi</i> immediately postanal, <i>ad2</i> at or just posterior to posterolateral corner of anal valve, level of insertion of seta <i>ad3</i> adjacent to proximal 30- 40% of anal valve; <i>ad3</i> subequal to <i>ad 2</i> in distance from valve. <i>Legs.</i> Distal apophysis of tibia overlaps about 50% of tarsus. Tarsal cluster of leg I placed distodorsally on a short apophysis, above and slightly proximal to setae <i>te; fi", omega 1</i> and 2 enclosed in same major rim, <i>omega 1</i> and 2 widely separated and shorter than <i>fi",</i> hole (presumably cavity containing <i>undevelopedfamulus)</i> visible (arrow, Fig. 1 OC), <i>fi"</i> longer than solenidia; tarsus lacking distal recess for receiving retracted unguinal complex, stalk medium length. Variation. The number of notogastral foveae perforated by a pore is variable. There are very few in the Mount Allyn population, whereas a pore is present in almost every fovea in the Gulpa Island population. Seta <i>in</i> is more vestigial in the Gilgandra and Gulpa Island populations (riverine plains of western New South Wales) and tends to lack a supporting apophysis (Fig. 101). Aggenital and adanal setae are very long in the Mount Allyn population (Fig. 40G), and relatively short in Gulpa Island population. Side barbs on non-eupathidic setae of the pedipalp tarsus are longer in the Gulpa Island population. Comments. This species is quite variable, both in its morphology and habitat requirements, even within its eastern coastal range. Further material and research may reveal that more than one species exists. For example, the Gulpa Island and Gilgandra populations may belong to a separate species. This species is morphologically close to <i>P gymnonota</i> Hammer, described from New Zealand (Hammer, 1966), but differs in lacking a caudal notch in the notogaster and in the shorter length of the stalk supporting the claw complex. Distribution. Coastal plains and ranges of northern New South Wales and southern Queensland; riverine plains of western New South Wales; Parilla area, South Australia.
description: Published as part of <i>Hunt, Glenn S., 1996, A review of the genus Hexachaetoniella Paschoal in Australia (Acarina: Cryptostigmata: Pedrocortesellidae), pp. 223-286 in Records of the Australian Museum 48 (3)</i> on pages 272-276, DOI: 10.3853/j.0067-1975.48.1996.431, http://zenodo.org/record/4654998
description: {"references": ["Balogh, P., 1985. New oribatids from Australia (Oribatei). Opuscula Zoologica, Budapest 19 - 20: 49 - 56.", "Woas, S., 1992. Beitrag zur Revision der Gymnodamaeidae Grandjean, 1954 (Acari, Oribatei). Andrias 9: 121 - 161.", "Hammer, M., 1966. Investigations on the oribatid fauna of New Zealand Part I. Biologiske Skrifter udgivet af det Konge 1 ige Danske Videnskabernes Se 1 skab 15 (2): 1 - 101, 45 plates."]}