Pedrocortesella leei Hunt 1996, n.sp.
Creators: name: Hunt, Glenn S.
Publisher: name: Zenodo
Year: 1996
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Licnodamaeidae
Pedrocortesella
Pedrocortesella leei

description: <i>Pedrocortesella leei</i> n.sp. Figs ID, 31 -33 <b>Type material.</b> New South Wales: HOLOTYPE adult, AM KS43690 Mount Allyn, near Barrington Tops, via Salisbury, 32°08'S 151°26'E berlese extraction bark scraped from <i>Nothofagus moorei,</i> temperate rainforest, G.S.Hunt, 20 September 1993. PARATYPE adults. ANIC, same data as holotype, 1 adult; SAMA, same data, 1 adult; AM KS46553 SEM stub. no 337 (ill.), same data, 3 adults. <b>Diagnosis.</b> Body small-medium, length about 400-450 fJ.m; scalps rarely (if at all) carried by adult; prodorsum without carinae; sensillus a flattened tuberculate blade though length less than interbothridial distance; notogaster foveate; 5 pairs notogastral setae, with cerotegument they are leaf-shaped; genitoanal chaetotaxy 6:1:2:2, genital setae essentially in straight file, both pairs adanal setae near posterior margin of anal valve; claw stalk very short. Description ADULT: <i>Body:</i> brown; length 410 fJ.m, 420 fJ.m. <i>Cerotegument:</i> body generally with thin veneer of cerotegument; reticulations on prodorsum and notogaster with numerous cushion-like grains of cerotegument (Fig. 3lE). Setae <i>ro</i> and <i>le</i> and notogastral setae with cerotegument at their bases; notogastral setae with thick lateral fringes of cerotegument giving the seta a tapering leaf-like appearance. <i>Prodorsum:</i> integument more or less uniformly reticulate-foveate including area between bothridia; foveae without visible pores; carina between <i>le</i> and <i>ra</i> absent; <i>le</i> dorsolateral and situated close to anterior of rostrum, distance between them about 0.5 distance between <i>ra,</i> not arising from large pit, <i>ro</i> ventrolateral. Pedotectal tooth strongly curved anteriad, tapering abruptly near its base into a long delicate spine. Bothridium abutting notogaster but not closely adpressed (Fig. 31E), wall diamond-shaped, posterolateral carina weak, away from notogaster; sensillus length about 0.8 interbothridial distance, with long flattened tuberculate blade (Fig. 31B), posterior margin ofprodorsum forming a smooth arc between bothridia; area between bothridia and elsewhere on prodorsum smoothly contoured (Fig. 31F), without carinae; <i>in</i> small, its supporting apophysis abutting bothridial base; at edge of dorsosejugal furrow, spiniform, base encased in cerotegument (Fig. 31C,E). <i>Exuvial scalps:</i> none seen. <i>Notogaster:</i> oval, length:width 290:210. Intramarginal depression oval but narrower posteriorly. Notogaster strongly foveate-reticulate, not perforated by pores; foveae with slightly raised central area (Fig. 31E); posterior margin not invaginate when viewed from above, without carina between setae <i>pi</i> when viewed posteriorly (Fig. 31D). Fissura <i>ia, im</i> and <i>ip</i> oblique to sagittal plane; 5 pairs of short notogastral setae, with broad tapering fringe of cerotegument, arising from pits; <i>hi</i> close to each other and directed mesad, each located at posterior margin; <i>pi</i> inserted mid-height on posterior flank, similarly spaced to <i>hi; Ipx, p2x</i> and <i>p3x</i> arise along posterolateral flank, their insertions visible from above, <i>Ipx</i> closest to fissura <i>ip,</i> inserted just posterior to it (Fig. 31A). <i>Gnathosoma:</i> rutella basally with moderate concave flexure and moderate lateral buttressing, pointed mesad processes and transverse striations absent (Figs 32C, 33A); Pedipalp tarsus with setae <i>(vt)</i> with short side branches, <i>cm</i> branches very short; <i>I"</i> smooth; apophysis supporting seta <i>acm</i> low; solenidion <i>omega</i> reaching to base of <i>acm</i> (Fig. 33B). <i>Epimeral region:</i> weakly convex anterior to genital valves, not tending to overhang them. <i>Genitoanal region:</i> separation of anal and genital vestibules relatively broad but with interruption to ventral plate microsculpture but there is a wide mesal isthmus without strong transverse grooves between the vestibules (Fig. 32A). Ventral plate reticulate-foveate. Genitoanal chaetotaxy 6:I:2:2; genital setae essentially in straight file but with g5 placed&gt;0.5 valve length; g] inserted at anterior margin of valve close to its inner corner; g6 inserted well anterior to inner posterior corner, in marginal notch; setae <i>ag</i> inserted at level between g5 and <i>g6;</i> setae <i>ad]</i> distinctly postanal, <i>ad3</i> presumably not present. <i>Legs.</i> Distal apophysis of tibia overlaps more than 50% of tarsus (Fig. 33C), partly due to extreme terminal compression of the tarsus. Tarsal cluster of leg I placed distodorsally on apophysis, <i>fi", omega</i>] and 2 enclosed in common rim, no partition separating <i>fi"</i> from <i>omega</i>] and 2, latter close together,fi" with heavy cerotegument at base (Fig. 33D); tarsus without distal recess for receiving retracted unguinal complex, stalk very short. <b>Comments.</b> In this species, the presence of a smoothly contoured prodorsum, two pairs of adanal setae and a smooth seta <i>I"</i> on the pedipalp tarsus is very unusual for <i>Pedrocortesella.</i> The species is close to <i>P nortoni</i> but differs from this species in having a longer sensillus, six pairs of genital setae, and in lacking a mental tectum. <b>Distribution.</b> Known only from the type locality in the Barrington Tops area, central eastern New South Wales.
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 265-269, DOI: 10.3853/j.0067-1975.48.1996.431, http://zenodo.org/record/4654998