187,641 research outputs found
Megisthanus leviathanicus Seeman 2017
No full text<i>Megisthanus leviathanicus</i> Seeman, 2017 <p> <i>Megisthanus leviathanicus</i> Seeman, 2017: 3 (online edition)</p> <p> <b>Material examined.</b> In addition to those listed in Seeman (2017): <b>Australia,</b> Queensland, ex passalid: 1 female, Atherton Tableland, 21.iii.1945 (J17327). 2 males, Atherton Tableland, 28.iii.1945 (J17314; J17315 –16, chelicerae on separate slide). No host given: 1 female, 2 males, dorsum and chelicerae of another male specimen, Eubenangee, 11.xii.1949, D.C. Brooks (J17318 –23, J17358 –61). All in SAM.</p> <p> <b>Diagnosis:</b> see Seeman (2017).</p> <p> <b>Remarks.</b> <i>Megisthanus leviathanicus</i> belongs to a small group of species that have females with tapering or lyriform dorsal shields. The only other similar species are <i>M</i>. <i>caudatus</i>, <i>M</i>. <i>jacobsoni</i> and <i>M</i>. <i>manonae</i> <b>sp. nov</b>. The former two species are highly distinctive in also having an elongate, hourglass-shaped ventrianal shield, which <i>M</i>. <i>leviathanicus</i> and <i>M</i>. <i>manonae</i> lack. <i>Megisthanus leviathanicus</i> and <i>M</i>. <i>manonae</i> are separated based on the shape of the female’s body setae (see the differential diagnosis for <i>M</i>. <i>manonae</i>).</p>Published as part of <i>Seeman, Owen D., 2019, The megisthanid mites (Mesostigmata: Megisthanidae) of Australia, pp. 1-40 in Zootaxa 4563 (1)</i> on page 5, DOI: 10.11646/zootaxa.4563.1.1, <a href="http://zenodo.org/record/2600858">http://zenodo.org/record/2600858</a>
Eutarsopolipus basiatus Seeman 2021
No full text<p> <b> The <i>ochoai</i> species group - <i>basiatus</i> subgroup</b> </p> <p> <b>Diagnosis.</b> Female with dorsal idiosomal setae fine, slender; setae <i>h</i> minute or alveolar vestiges. All life stages with gnathosomal apex with small paired lobes.</p>Published as part of <i>Seeman, Owen D., 2021, Contrasting species diversification of Eutarsopolipus (Acariformes: Podapolipidae) on Castelnaudia and Notonomus (Coleoptera: Carabidae), pp. 1-74 in Zootaxa 4971 (1)</i> on page 41, DOI: 10.11646/zootaxa.4971.1.1, <a href="http://zenodo.org/record/4771514">http://zenodo.org/record/4771514</a>
Eutarsopolipus nahmani Seeman 2021
No full text<p> <b> The <i>ochoai</i> species group - <i>nahmani</i> subgroup</b> </p> <p> <b>Diagnosis.</b> Female with dorsal idiosomal setae fine, slender; setae <i>h</i> small but developed. All life stages with gnathosomal apex evenly rounded.</p>Published as part of <i>Seeman, Owen D., 2021, Contrasting species diversification of Eutarsopolipus (Acariformes: Podapolipidae) on Castelnaudia and Notonomus (Coleoptera: Carabidae), pp. 1-74 in Zootaxa 4971 (1)</i> on page 24, DOI: 10.11646/zootaxa.4971.1.1, <a href="http://zenodo.org/record/4771514">http://zenodo.org/record/4771514</a>
Krantzoseius Seeman
No full textKrantzoseius Seeman Krantzoseius Seeman, 2012: 534. Type species: Krantzoseius walteri Seeman, 2012, by original designation.Published as part of De Moraes, Gilberto J., Britto, Erika P. J., Mineiro, Jefferson L. De C. & Halliday, Bruce, 2016, Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata), pp. 1-299 in Zootaxa 4112 (1) on page 159, DOI: 10.11646/zootaxa.4112.1.1, http://zenodo.org/record/39947
Fedrizzia abradoalves Seeman, sp. nov.
No full text<i>Fedrizzia abradoalves</i> Seeman sp. nov. <p>(Figs 22 – 26)</p> <p> <b>Type specimens:</b> Holotype, F, 2 km E Sunday Ck, JSF, 16.iii.1996, O. Seeman, ex <i>Pharochilus dilatatus</i> (Dalman) (S73928). Paratypes, <b>AUSTRALIA: Southeast Queensland:</b> 3 F, 3 M, Duck Ck, LNP, 20.iii.1995, D. E. Walter (S73998 -74003); F, M, Cherry Plain, BM, 12.ii.1996, O. Seeman (S74004 -5); 3 F, 3 M, Dandabah, BM, 12.ii.1996, O. Seeman (S74006 -11); 3 F, 5 M, 2 km E Sunday Ck, JSF, 16.iii.1996, O. Seeman (S74015 -19). All specimens collected from <i>P. dilatatus</i> and deposited in QM. F, M, same data as holotype, deposited in ANIC.</p> <p> <b>Diagnosis.</b> Both sexes: idiosoma 1020 –1070 long, with 8–10 large pores; ventral shield with mesh-like pattern; marginal and ventrianal shields with lineate reticulations; anterolateral corner of ventrianal shield fused with ventral shield; exopodal patterning between CxII–III spotted; pedofossae III absent; CxIV-marginal suture absent; femur III and IV without lamellae, seta <i>pv1</i> not significantly thickened; femur IV elongated; seta <i>h1</i> unmodified. Female: setae <i>st2-4</i> 7-9 long; lyrifissure stp2 anterior of stp <i>x</i>; sternogynial shield with honeycomb-like reticulations, not flanked by a cluster of pores, and surrounded by a smooth area extending 109–130 posterior of genital shield. Male: sternoventral shield with suture behind genital opening demarking anterior smooth and posterior reticulated areas; genital opening not flanked by pores; seta <i>h3</i> positioned posterior of <i>h2</i>.</p> <p> <b>Description. Female:</b> <i>Idiosoma</i> 1020 –1070 long, 750–780 wide, with 8–10 large pores (10–15 diameter) medially and posteriorly; anterior hyaline projection with 1 pair of barbed setae 55–68 long. Marginal setae 8– 13 long. Tritosternum base 35–40 long, 45–52 wide. Tetartosternum and sternal shield smooth; tetartosternum rectangular, 29–32 long at midline, 128–134 wide; <i>st1</i> smooth, 25–30 long; <i>st2-4</i> 7–9 long; posterolateral margin of sternal shield acutely pointed, <i>st3-4</i> on posterior margin, eye-like pore stp <i>x</i> posterior <i>stp2</i>. Sternogynial shield 131–145 long, 163–172 wide, with honeycomb-like reticulation. Sternogynial shield surrounded by smooth area that extends 109–130 posterior of sternogynial shield; remainder of ventral shield with meshlike pattern. Sternogynial shield flanked by 5 pairs of setae (5–10 long), smooth area surrounding sternogynial shield with 1 pair of setae medially. Ventral shield with a large pore (10–15 diameter) posteromedial of CxIV, 2 pairs of eye-like pores laterad of CxIV, ca. 15 pairs of small round pores, 10 pairs of setae, the most posterior and lateral are 12–18 long. Ventrianal shield 150–160 long, 435–480 wide, with transverse linear reticulation, 1 pair setae anterior of anus 10–12 long, 3 lateral pairs 18–22 long, paranal setae 27–28 long; anterolateral corner of ventrianal shield fused with ventral shield. Marginal shields with lineate reticulation.</p> <p> <i>Legs</i>. TrI with seta <i>pv1</i> with minute barbs, not thicker than seta <i>av1</i>. FeI with seta <i>pv3</i> similar to seta <i>pv1</i> and <i>pv2</i>. FeII with lamella distal to seta <i>pv1</i>, seta <i>ad1</i> smooth and thickened. FeIII without lamella, seta <i>pv1</i> not spine-like. FeIV enlarged, 205–222 long, 105–110 wide at distal end, without lamella, seta <i>pv1</i> not spinelike, seta <i>pd2</i> more proximal than seta <i>ad2</i>. TaII and III with seta <i>av2</i> setiform, longer than seta <i>av3</i>. Legs II– IV with thickened <i>ad</i> and <i>pd</i> setae, especially on femora and genua.</p> <p> <i>Gnathosoma.</i> Seta <i>h1</i> smooth, straight, 73–80 long, distance between <i>h1-h1</i> 45–50; <i>h2</i> smooth 52–60 long; <i>h 3</i> 7–10 long, posterolaterad <i>h2</i>; palpcoxal seta 16–17 long. Corniculi on tubercles ca. 10 long. Palp, seta <i>av1</i> on trochanter with 9–10 branches up to 18 long, seta <i>av2</i> with small barbs, spur with accessory spine. Chelicera, fixed digit 195–200 long, movable digit 69–73 long, fixed digit with 2 large and 2 minute teeth; excrescences arise from an enlarged base of digit and comprise a large brush-like process, a ribbon-like process with a serrate edge, and a ribbon-like process with a crenate and toothed edge; processes extend at least 90 past end of chelicerae.</p> <p> <b>Male:</b> <i>Idiosoma</i>. 1020–1050 long, 720–800 wide. Tetartosternum 23–29 long at midline, 83–90 wide; <i>st1</i> smooth, 30–42 long; <i>st2</i> smooth, 10–12 long; <i>st3</i> smooth, 22–25 long. Genital opening 69–78 long, 80–84 wide. Small, medial smooth areas level with Cx IV and just anterior of ventrianal shield. Suture behind genital opening separates smooth sternogenital shield from ventral shield. Ventral and ventrianal shield with meshlike reticulations. <i>Gnathosoma.</i> Seta <i>h3</i> blade-like, 7–9 long, and posterior to <i>h2</i> and closer to midline than <i>h2</i>. Palpcoxal seta 10–12 long.</p> <p> <b>Remarks.</b> The sternal region of Mesostigmata usually has four pairs of setae and three pairs of slit-organs (lyrifissures). Members of the Fedrizziidae and Klinckowstroemiidae have four pairs of setae, but appear to have three pairs of lyrifissures and a pore-like structure. Three lyrifissures are identifiable: in females, stp1 is on the tetartosternum, stp2 is on the sternal shield and stp3 is on the sternogynial shield. The additional porelike structure is on the sternal shield. This structure is not shaped as a typical lyrifissure and probably represents a gland. Herein, I refer to this gland-like structure as stp <i>x</i>.</p> <p> Lyrifissure stp2 is posterior of stp <i>x</i> in most species of Fedrizziidae. However, in <i>F. abradoalves</i> and <i>F. sellnicki</i> stp2 is anterior of stp <i>x</i> (Fig. 25), and in <i>F. bornemisszai</i>, <i>F. c a r a b i</i> and <i>F. derricki</i>, stp2 and stp <i>x</i> are level with each other.</p> <p> An unusual positional change is that of seta <i>h2</i> and <i>h 3</i> in male and female Fedrizziidae and Klinckowstroemiidae. In females, seta <i>h3</i> is tiny (<15 long), and setae <i>h1</i> and <i>h2</i> are large (> 30 long), but in males, the tiny seta is placed between the large setae (Figs 4, 23, 24). Therefore, either the position of <i>h3</i> changes, or seta <i>h2</i> takes on the form of seta <i>h3</i>, and vice versa. The latter interpretation is used in the Klinckowstroemiidae (Rosario and Hunter 1987), but I prefer the former explanation for the following reasons. The position of the tiny seta in male Fedrizziidae is generally posterior of <i>h1</i>, but anterior of the other large hypostomal seta (Fig. 4 b). However, in <i>F. abradoalves</i> and <i>F. s e l l n i c k i</i> this seta is posterior of both the large hypostomal setae (Figs 4 a, 23). Therefore, the position of the small seta is variable. Additionally, the size of the small seta in the male is always similar to that of the female, further suggesting that seta <i>h 3</i> in male Fedrizziidae and Klinckowstroemiidae is in an unusual position medial of seta <i>h2</i>.</p> <p> <b>Etymology.</b> The specific name is Latin for “shaven belly” and alludes to the smooth, bare region surrounding the genital opening.</p>Published as part of <i>Seeman, Owen D., 2007, Revision of the Fedrizziidae (Acari: Mesostigmata: Fedrizzioidea), pp. 1-55 in Zootaxa 1480</i> on pages 16-22, DOI: <a href="http://zenodo.org/record/176844">10.5281/zenodo.176844</a>
Neofedrizzia helenae Seeman, sp. nov.
No full text<i>Neofedrizzia helenae</i> Seeman sp. nov. <p>(Figs 5–8, 41–43)</p> <p> <b>Type specimens.</b> Holotype, F, <b>AUSTRALIA: Queensland:</b> Atherton Tableland, Curtain Fig, 27.i.1996, O. Seeman, on passalid <i>M. australasicus</i> (S74146). Paratypes, <b>Atherton Tableland:</b> 2 F, 2 M, Curtain Fig, 6.iv.1995, D. E. Walter (S74147-50); 2 F, 2 M, Gadgarra, 7.iv.95, D. E. Walter (S74151 -54); F, M, Mt Baldy, 8.iv.1995, D. E. Walter (S74155-56); F, 2 M, same data as holotype (S74157 -60); F, M, Road to Mt Bartle- Frere, 28.i.1996, O. Seeman (S74161-62); F, M, 9 km S Ravenshoe, 28.i.1996, O. Seeman (S74162 -63); F, M, Wright’s Ck, 28.i.1996, O. Seeman (S74164-65). All from <i>M. australasicus</i> and deposited in QM. M, same data as holotype, deposited in ANIC.</p> <p> <b>Other specimens.</b> M, Atherton Tableland, 28.iii.1945, D. L. Collis, on <i>Megisthanus</i> sp. (N1952363). In SAMA. 3 F, 4 M, Queensland, Eubenangee near Innisfail, 11.xii.1945, J. C. Brooks, on passalid (N1952453- N1952359). In SAMA.</p> <p> <b>Diagnosis.</b> Both sexes: idiosoma 1450 –1550 long; anterior hyaline projection does not extend past CxI; exopodal patterning between CxII–III striped; pedofossae III present, IV absent; seta <i>h1</i> with 5–6 barbs; distal spine-like process on palp femur minute; one non-filamentous excrescence ribbon-like, the other a short serrated blade; femur III and IV with large lamellae. Female: sternal shield reticulated; seta <i>st1</i> 68–70, a little shorter than base of tritosternum; setae <i>st2</i> 54–66, <i>st 3</i> 18–30, <i>st4</i> 5–6 long; sternogynial shield smooth, anterior margin straight. Male: tetartosternum absent, presternal processes articulated with sternoventral shield, membranous, asymmetrical, the left process a little larger than the right, tips separate from each other; sternoventral shield (anterior of genital opening) smooth; seta <i>st1</i> 38–39 long; genital opening placed between CxII– III, flanked by 20–28 pores.</p> <p> <b>Description. Female:</b> <i>Idiosoma</i> 1450 –1520 long, 1080–1130 wide, anterior hyaline projection with 1 pair barbed setae 86–90 long. Tritosternum base 88–90 long, 38–43 wide. Tetartosternum and sternal shield reticulate; tetartosternum crown-shaped; <i>st1</i> barbed, 68–70 long; <i>st2</i> barbed, 54–66 long; <i>st 3</i> 18–30 long, <i>st4</i> 5–6 long. Sternogynial shield 146–156 long, 150–164 wide, smooth, numerous pores flank shield. Ventral shield lineate, lightly reticulate medially; 1 pair of large semi-circular pores posteromedially of Cx IV, 1 pair of eyelike pores, ca. 25 pairs of small round pores, and ca. 15 pairs of small (<5 long) setae. Ventrianal shield 290– 330 long, 640–710 wide, with lineate reticulation, paranal setae 102–108 long, other setae minute; anterolateral corner of ventrianal shield not fused with ventral shield. Marginal shields with lineate reticulation. Pedofossae III and CxIV-marginal suture present.</p> <p> <i>Legs.</i> TrI with seta <i>pv1</i> slightly thicker than seta <i>av1</i>. FeI with seta <i>pv3</i> longer and thicker than setae <i>pv1</i> and <i>pv2</i>. FeII with ventral lamella, seta <i>ad1</i> barbed and thickened. GeII with seta <i>ad3</i> and <i>pd3</i> short, slightly thickened. FeIII with lamella, expanded distal to <i>av1</i>, seta <i>pv1</i> spine-like. GeIII with seta <i>pd2</i> spine-like. FeIV with lamella, expanded distal to <i>av1</i>, seta <i>pv1</i> thick, spine-like, seta <i>ad2</i> setiform, seta <i>pd 2</i> in line with seta <i>ad2</i>. TaII–IV with seta <i>av2</i> spine-like, shorter than seta <i>av3</i>. Legs II–IV with setiform <i>ad</i> and <i>pd</i> setae.</p> <p> <i>Gnathosoma.</i> Seta <i>h1</i> curved, with 5–6 large barbs, 76–89 long, distance between <i>h1–h 1</i> 13–15; <i>h2</i> barbed 60–65 long; <i>h3</i> minute, posterolaterad <i>h2</i>; palpcoxal seta 27 long. Corniculi not on tubercles. Palp, seta <i>av1</i> on trochanter with many small barbs, seta <i>av2</i> with a few small barbs. Chelicera, fixed digit 248–250 long, movable digit 62–65 long; fixed digit with 2 large and 1 minute subapical tooth; excrescences consist of a large brush-like process, a short serrated blade, and a ribbon-like process with a crenate margin that extends well beyond the end of the chelicerae.</p> <p> <b>Male:</b> Idiosoma 1480 –1550 long, 1110–1150 wide. Tritosternum base broad, 101–113 long, 98–108 wide. Presternal processes membranous, triangular, asymmetrical, left process larger than right. Sternal shield anterior of male genital opening smooth. Seta <i>st1</i> smooth, 38–39 long. Genital opening 78–83 long, 87–93 wide, with 20–28 large pores laterad the opening. Large lamellae on Cx I. Seta <i>h3</i> posterolaterad <i>h1</i>, anterior <i>h2</i>.</p> <p> <b>Remarks.</b> This species is the largest Fedrizziidae and occurs in northern Queensland on <i>M. australasicus</i>. Apart from its size, this species is also distinguished by the males’ membranous presternal processes, but in many slides the presternal processes fold over the sternal shield and are difficult to see. The male specimen from Womersley’s collection (N1952363) was originally considered as <i>N</i>. <i>gayi</i>; the remainder of Womersley’s collections (N1952453-N1952359) were included with <i>N. tragardhi</i>.</p> <p> <b>Etymology.</b> It is a pleasure to name this species for my partner, the lovely Helen Nahrung.</p>Published as part of <i>Seeman, Owen D., 2007, Revision of the Fedrizziidae (Acari: Mesostigmata: Fedrizzioidea), pp. 1-55 in Zootaxa 1480</i> on pages 39-40, DOI: <a href="http://zenodo.org/record/176844">10.5281/zenodo.176844</a>
Paradiplogynium nahmani Seeman
No full textParadiplogynium nahmani Seeman Type specimens examined: Holotype female, Duck Ck, Lamington National Park, Qld, 15 Nov 1996, O.Seeman, ex Titanolabis colossea, QMS 73814. Paratype male, same data as holotype, QMS 73815. Other specimens examined: Southeast Queensland: Ten males, six females, Hampton, 3 Oct 1956, G.F.B., ex Panesthia laevicollis (= Pan. cribrata) from eucalypt log (J 12243 – 51, J 12253 – 59); two males, one female, Dalby Banga, 25 Dec 1925, H. Geary, ex blattid (these misidentified by Womersley (1958) as Par. panesthia); three males, one female, Fire Tower Rd, Jimna State Forest, 16 Feb 1999, O. Seeman, ex Pan. cribrata; one male, five females, Plank Bridge, Jimna State Forest, 18 Feb 1999, O. Seeman, ex Pan. cribrata; three males [Lamington] National Park, R. Illidge, ex pinned Pan. cribrata; one female, Brisbane, 21 Aug 1918, H. Hacker, ex pinned Pan. cribrata; one male, Brisbane, 20 Jul 1918, H. Hacker, ex pinned Pan. cribrata; one female, same data except from different Pan. cribrata specimen. All in QM. Northeast Queensland: Three females, four males, Bluewater Range, 50 km WNW Townsville, 6–8 Dec 1986, 7– 800 m alt., RF, Monteith, Thompson & Hamlet coll., ex pinned Pan. sloanei; one female, Curtain Fig, 2 km S Yungaburra, 8 Dec 1988, 700 m. alt, Monteith & Thompson, ex pinned Pan. ancaudellioides; one male, Bloomfield Rd, via Helenvale, 20–27 July 1974, Monteith & Cook, ex pinned Pan. ancaudellioides. All in QM. Description (based on Southeast Queensland specimens from P . cribrata) Female Dorsal idiosoma 715–790 long, 550–605 wide. Podosoma with 20 pairs of setae (j 1, j 3–6, z 1, z 3–6, s 1–6, r 3–6) and one unpaired seta (j 2); opisthosoma with 14 pairs of setae (J 1–5, others tentatively designated as Z 1–5, R 1–4). Setae j 1 58–63, barbed, Z 5 85–95, smooth, J 5 25. Other setae in series jJ, zZ, and s 17–25 long (S 3 absent), tending to be longest in s series. Setae r 3 35–38, r 4 45–50, r 5 40–45, r 6 40–50; R 1 25–34, R 2 25–30, R 3 60–70, R 4 155–185, all weakly barbed. Lyrifissures idz 1 and idr 3 present; dorsum with 13 pairs of glands. Dorsal shield covered with fine reticulation, weaker medially. Ventral idiosoma. Sternal shield reticulate, concave posteriorly, 80–86 long in midline, 145–173 long from anterolateral to posterolateral corner, 209–231 wide at widest point; with three pairs of setae, two pairs of lyrifissures and one pair of pores. Setae st 1 31–35, curved, st 2 33–36, st 3 29–31, smooth. Distance between setae st 1 –st 1 98–105, st 2 –st 2 94–100, st 3 –st 3 adjacent, st 1 –st 2 5–8, st 1 –st 3 78–90. Setae st 4 18–20, on free paired metasternal shields, which have their anterior edges beneath the posterior margin of the sternal shield. Tritosternum 145–162 long, base 12 long, laciniae pilose, dividing 110 from base. Latigynal shields each 123–135 long, 83–89 wide, with one pair of pores and one pair of setae, 18–20 long, anterior and medial margins (to mesogynal shield) thickened, anterior margin strongly invaginated, shields reticulated. Mesogynal shield rectangular, 48–57 long, 18–21 wide, overlapped by latigynal shields in anterolateral region. Vaginal sclerites 95–101 long, meet medially at a small porose plate. Ventral shield fused with exopodal shield, with dense reticulation medially becoming sparser laterally; ventral shield embraces a membranous anal region; setae Jv 1–3, Zv 2 smooth, 20–28 long; 4–5 pairs of irregularly placed pores anterior to anus; two pairs of smooth setae (Jv 4–5), one pair of lyrifissures and one pair of pores laterad and posterior to anus. Anal plates surrounded by membranous region 83–100 long, 90–113 wide. Marginal shield with 2–3 pairs of pores and one pair of setae (Zv 4); shields just meeting behind ventral shield. Peritreme extending to coxa I. Body holding up to four eggs. Gnathosoma. Hypostome with four pairs of weakly barbed setae, h 1 33–40, h 2 50–58, h 3 25–35, palpcoxal seta 25–30. Corniculi slender, 43–45 long. Gnathotectum triangular, with ventro-median keel, coming to a sharp point. Palps unspecialised, setal counts from trochanter 2-5 - 7-15 - 16 setae; apotele 2 -tined, but with tiny basal prong. Fixed digit of chelicerae with 11 teeth (anterior two tiny), minute pilus dentilis, cheliceral seta, and serrated process; moveable digit with 9–10 teeth (most anterior tiny), proximally with 7–8 minute teeth, and three excrescences: one short and brush like, one with minute papillae and only slightly longer than cheliceral digits, the other extending 30–42 past tip of moveable digit and covered with numerous papillae. Leg s. Chaetotaxy typical for the genus. Femur I elongate, seta pd 1 35–37, pd 2 30–36. Male Dorsal idiosoma 655–740 long, 490–570 wide. Dorsal setae as in female, R 4 170–173, barbed, and Z 5 83–100, smooth. Holoventral shield reticulate, with densest reticulation medially. Setae st 1 18–20, curved, flanking tritosternum base, st 2 22–25, st 3 22–25, weakly blade–like, adjacent and on bulbous projection 48–52 wide, also bearing a cluster of glands and their associated pore opening. Setae st 4 20, well behind (108–130) st 2 and st 3. Setae st 5 13–17 long. Tritosternum bifurcate, laciniae barbed; base broad, 49 – 40 wide, plus a smaller basal plate and broader area of soft cuticle. Genital opening beneath anterior margin of holoventral shield. Holoventral shield fused with exopodal shield and embracing a membranous anal region; four pairs of setae and 3–4 pairs of irregularly placed pores between anterior margin of anal membrane and CxIV; one pair of pores and one pair of setae lateral to anal membrane; one pair of setae, lyrifissures and pores posterior to anal membrane. Anal membrane 85–94 long, 95–108 wide. Marginal shield with 4–5 pairs of pores and one pair of setae; shields just meeting behind ventral shield. Hypostome with four pairs of weakly barbed setae, h 1 25–31, h 2 38–56, h 3 25–32, palpcoxal seta 23. Corniculi slender, 32–38 long. Gnathotectum with rounded tip. Chelicerae as in female, except the base of the moveable digit of the chelicera has two scoop-like lobes (one is 25 long), and a larger (40–45 long) somewhat sclerotised scoop-like excrescence; large papillate excrescence extends 45 past tip of moveable digit. Legs as for female.Published as part of Seeman, Owen D., 2012, Diplogyniidae (Acari: Mesostigmata) associated with Panesthia cockroaches (Blattodea: Blaberidae), pp. 33-53 in Zootaxa 3163 on pages 49-50, DOI: 10.5281/zenodo.21177
Loss of dopamine neuron terminals in antipsychotic-treated schizophrenia: relation to tardive dyskinesia.
No full textThe in vivo labeling and brain imaging of dopamine transporters measure the density of dopamine neuron terminals in the human caudate/putamen. A review of such studies shows that the long-term use of antipsychotics had no major effect on the density of the dopamine terminals in individuals who had no tardive dyskinesia, but had reduced the density in those patients with tardive dyskinesia. In addition, the normal loss of dopamine terminals in healthy individuals was approximately 5% per decade. However, this rate of cell loss was apparently increased by approximately three-fold, to about 15% per decade, in schizophrenia patients using antipsychotics on a long-term basis, as measured by the in vivo imaging of the dopamine transporters in the dopamine neuron terminals. While an apparent reduction in dopamine transporters may result from reduced expression of the transporters secondary to antipsychotic treatment, the seemingly increased loss rate is consistent with the accumulation of antipsychotics in the neuromelanin of the substantia nigra, subsequent injury to the dopamine-containing neurons, and the development of extrapyramidal motor disturbances such as tardive dyskinesia or Parkinson's disease
Krantzoseius walteri Seeman 2012
No full textKrantzoseius walteri Seeman , 2012 Krantzoseius walteri Seeman, 2012: 535. TYPE DEPOSITORY: Queensland Museum, Brisbane, Australia. TYPE LOCALITY AND HABITAT: Cook’s Property, 1.5 km northeast of Bilbrough Lookout, Australia, from female Trichosternus perater (Animalia: Carabidae) dug from burrow.Published as part of De Moraes, Gilberto J., Britto, Erika P. J., Mineiro, Jefferson L. De C. & Halliday, Bruce, 2016, Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata), pp. 1-299 in Zootaxa 4112 (1) on page 159, DOI: 10.11646/zootaxa.4112.1.1, http://zenodo.org/record/39947
Neofedrizzia bunyas Seeman, sp. nov.
No full textNeofedrizzia bunyas Seeman sp. nov. (Figs 37 – 38) Type specimens. Holotype, F, Australia: Queensland: Cherry Plain, BM, 12.ii. 1996, O. Seeman, on P. dilatatus (S 74092). Paratypes, Bunya Mountains: M, same data as holotype (S 74093); F, 3 M, Dandabah, 12.ii. 1996, on P. dilatatus (S 74094 - 97); 2 F, M, Little Falls, 13.ii. 1996, from pupal chamber of M. quaestionis (S 74098 - 100). All specimens deposited in QM. M, same data as holotype, deposited in ANIC. Diagnosis. Both sexes: idiosoma 1100–1140 long; anterior hyaline projection does not extend past CxI; exopodal patterning between CxII–III striped; pedofossae III present, IV absent; seta h 1 with 3 large barbs; distal spine-like process on palp femur minute or absent; one non-filamentous excrescence ribbon-like, the other a short serrated blade; femur III and IV with large lamellae. Female: sternal shield reticulated; seta st 1 20 long, much shorter than base of tritosternum; setae st 2-3 4–10 long, st 4 minute; sternogynial shield smooth, anterior margin straight. Male: tetartosternum absent; presternal processes articulated with sternoventral shield, asymmetrical, the left longer than the right, with truncate tips, directed inwards; sternoventral shield (anterior of genital opening) smooth; seta st 1 50–65 long; genital opening placed between CxII–III, flanked by 8–10 pores. Description. Female: Idiosoma 1100–1140 long, 820–840 wide; anterior hyaline projection with 1 pair of barbed setae 54–60 long. Tritosternum base 66–67 long, 32–36 wide. Tetartosternum and sternal shield reticulate; tetartosternum crown-shaped; st 1 20 long, st 2 4–8 long, st 3 10 long, st 4 minute. Sternogynial shield 130–138 long, 128–142 wide, smooth, 4–5 pores flanking each side of shield. Ventral shield lineate, smooth in intercoxal region; 1 pair large semi-circular pores posteromedially of Cx IV, 1 pair of eye-like pores, ca. 12 pairs of small round pores, and 13 pairs of small (<5 long) setae. Ventrianal shield 220–225 long, 515–540 wide, with lineate reticulation, paranal setae 80–94 long, other setae minute; anterolateral corner of ventrianal shield not fused with ventral shield. Marginal shields with lineate reticulation. Pedofossae III and CxIV-marginal suture present. Legs. TrI with seta pv 1 slightly thicker than seta av 1. FeI with seta pv 3 longer and thicker than setae pv 1 and pv 2. FeII with ventral lamella, seta ad 1 barbed and thickened. GeII with seta ad 3 and pd 3 thickened. FeIII with lamella, expanded distal to av 1, seta pv 1 spine-like. GeIII with seta pd 2 spine-like. FeIV with lamella, expanded distal to av 1, seta pv 1 thick, spine-like, seta ad 2 thickened, seta pd 2 in line with or just proximal to seta ad 2. TaII–IV with seta av 2 spine-like, shorter than seta av 3. Legs II–IV with setiform ad and pd setae. Gnathosoma. Seta h 1 curved, with 3 large barbs, 67–69 long, distance between h 1 –h 1 10–12; h 2 with 3 small barbs, 53 long; h 3 10–11 long, posterolaterad h 2; palpcoxal seta 22–25 long. Corniculi not on tubercles. Palp, seta av 1 on trochanter with 18–20 barbs, 61 long; av 2 with 3 small barbs, 63 long. Chelicera, fixed digit 200–205 long, movable digit 62 long; fixed digit with 2 large and 1 minute subapical tooth; excrescences consist of a large brush-like process, a short serrated blade, and a ribbon-like process with a toothed margin that extends well beyond the end of chelicerae. Male: Idiosoma 1150 long, 850 wide. Tritosternum base broad, 70–72 long, 82–84 wide. Presternal processes asymmetrical, left process longer than right, broadly attached to sternal shield and pointing inwards; right process with a tooth-like ridge, left process with a longitudinal ridge. Sternal shield anterior of genital opening smooth. Seta st 1 smooth, 50–65 long. Genital opening 78–80 long, 72–75 wide, with 8–10 large pores laterad the opening. Large lamellae on Cx I. Gnathosoma. Seta h 3 posterolaterad h 1, anterior h 2. Remarks. This species is found in the Bunya Mountains and is common on M. quaestionis. Etymology. The specific name is derived from the type locality, the Bunya Mountains.Published as part of Seeman, Owen D., 2007, Revision of the Fedrizziidae (Acari: Mesostigmata: Fedrizzioidea), pp. 1-55 in Zootaxa 1480 on pages 33-34, DOI: 10.5281/zenodo.17684
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