Proctolaelaps threnetes Dusbabek & Literak, sp. nov.

Abstract

<i>Proctolaelaps threnetes</i> Dusbabek & Literak, sp. nov. <p>(Figs. 1–9)</p> <p> <i>Type material:</i> Female holotype, male paratype and five female paratypes ex <i>Threnetes ruckeri</i> (Bourcier, 1847), Costa Rica, Barbilla NP, 570 m elevation, September 2004, coll. I. Literak. Female holotype, male paratype on one slide deposited at the type collection of the Biology Centre of the AS CR, Institute of Parasitology, Ceske Budejovice, Czech Republic, under the accession number CSAV 2005. Paratypes are deposited in the collection of the British Museum (Natural History), London, UK, in the Museum of Biological Diversity, the Ohio State University, 1315 Kinnear Road, Columbus, OH 43212, USA, and in the Instituto Nacional de Biodiversidad, P.O.Box 22-3100, Santo Domingo de Heredia, Costa Rica.</p> <p> <i>Material examined.</i> Two males and 25 females ex 6 specimens of the same host, locality and data as the holotype; 2 males and 26 females ex 7 specimens of <i>Eutoxeres aquila</i> (Bourcier, 1847), 3 females ex <i>Phaethornis superciliosus</i> (L., 1766) and 2 females ex one specimen of <i>Chalybura urochrysia</i> (Gould, 1861) of the same data and locality; 2 females ex <i>Threnetes ruckeri</i>, Hitoy Cerere BR, August 2004; 3 females ex 3 specimens of <i>Phaethornis superciliosus</i> and 3 females ex 2 specimens of <i>Phaethornis longuemareus</i> (Lesson, 1832) of the same data and locality; all coll. I. Literak.</p> <p> <b>Diagnosis.</b> Species of the <i>P</i>. <i>belemensis</i> group with setae <i>j1</i> and <i>r3</i> with lateral bulbous swelling. Relatively large species, with female body length frequently exceeding 600 μm. Dorsal plate with 43 pairs of setae, setae <i>r2–r6</i> on the plate. Setae <i>j5</i> short (15–22) setae <i>z5</i> long (32–39), setae S5 long (42-54). Spermatodactyl of male very long (250–332), strong ventral spine on femur IV absent.</p> <p> <b>Female</b> (Holotype). <i>Dorsum</i>: Unfed specimen with body length 564 (614–620 in five paratypes), width 385 (401–420). Dorsal plate 552 (539–570) long, 376 (351–401) wide, finely structured, with row of small denticles on its anterior margin. There are 43 pairs of setae on the plate, series <i>j</i>, <i>z</i> and <i>s</i> each with 6 pairs of seta, series <i>r</i> with 5 pairs. Series <i>J</i>, <i>Z</i> and <i>S</i> each with 5 pairs of setae. Setae <i>j1</i> and <i>r3</i> with lateral bulbous swelling, setae <i>Z5</i> setiform. Setae <i>j1</i> measuring 44 (40–44), <i>j5</i> 17 (15–22), <i>z5</i> 32 (32–39), <i>r2</i> 32 (30–36), <i>r3</i> 42 (40–47), <i>J5</i> 12 (12–15), <i>S5</i> 51 (42-51), <i>Z5</i> 93 (88–95). Peritreme reaching setae <i>z1</i>, peritremal plate narrow.</p> <p> <i>Ve n te r</i>: Sternal plate 137 (135–164) long (presternum included), 137 (133–147) wide, finely structured, with 3 pairs of sternal setae and 2 pairs of lyriform pores. Setae <i>St1</i> length 38 (37–42), <i>St2</i> and <i>St3</i> 44 (41–44), <i>Mst</i> 44 (42–49). Distance <i>St1–St2</i> 56 (54–61), <i>St2–St3</i> 37 (34–39). Genital plate broad and rounded at the end, slightly enlarged posterior to coxa IV, finely structured. Genital setae 39 (37–44) long. Anal plate egg-shaped, anal setae situated at posterior margin of anal pore, 113 (103–115) long, 78 (74–87) wide. Adanal setae 22 (22–27), post-anal seta 74 (69–95) long. Unsclerotised integument with 15 pairs of setae, some of them with lateral bulbous swelling. Setae <i>Jvl</i> 37 (39–44) long, <i>Jv2</i> 49 (41–54), <i>Jv5</i> 87 (74–88). Endopodal platelets present, metapodal platelets small and narrow (32x8), situated posterior to coxa IV.</p> <p> <i>Gnathosoma</i>: Deutosternum with 7 rows of denticles, 5th and 6th rows widened and curved. Corniculi pointed and curved inward. Epistome rounded and strongly toothed. Fixed chela with three fine subapical teeth, movable chela with three lateral teeth and membranous lobe. Inner seta on palpfemur and palpgenu flattened at the tip.</p> <p> <i>Legs</i>: Tibia III with 8–9 setae, tibia IV with 10 setae.</p> <p> <b>Male</b>. <i>Dorsum</i>: Body oval, 483 long (478–489 in five paratypes), 326 (282–314) wide. Dorsal plate 458 (464–480) long, 307 (280–310) wide, with fine scale-like structure as shown on figures, covered with 43 pairs of setae. All setal series complete, except <i>r</i> series lacking setae <i>r1</i>. Setae <i>r2–r6</i> and <i>R1–R5</i> situated on the plate. Setae <i>j1</i> and <i>r3</i> strong, with lateral bulbous swelling. Setae <i>j1</i> spine-like, 37 (32–37) long, setae <i>j5</i> short, measuring 27 (17–23) only, setae <i>z5</i> longer, measuring 32 (30–34). Setae <i>J5</i> minute, 12 (11–12) long, setae <i>Z5</i> stout, spine-like, 78 (74–83) long. Setae <i>r2</i> fine, 27 (24–27) long, setae <i>r3</i> 40 (34–39) long. Anterior margin of dorsal plate finely denticulate. Peritreme reaching setae <i>z1</i>. Peritremal shield narrow.</p> <p> <i>Ve nt e r</i>: Genitoventral plate triangular, 233 (228–236) long (including genital pore), 130 (120–127) wide, finely structured, with 5 pairs of setae 38–42 (30–44) long. Two pairs of lyriform pores close to <i>Gv1</i> and <i>Gv2</i>, and a pair of small circular pores between <i>Gv3</i> and <i>Gv4</i>. Ventri-anal plate broadly triangular, finely structured, with 6 pairs of setae anterior to anal pore, a pair of adanal setae and unpaired post-anal seta. The length of these setae is as follows: <i>Jv1</i> 39 (32–38), <i>Jv2</i> 49 (42–47), <i>Jv5</i> 65 (60–74), <i>Zv1</i> 30 (25–32).</p> <p> <i>Gnathosoma</i>: Deutosternum with 7 rows of denticles, 5th and 6th rows widened and bent. Spermatodactyl extremely long, measuring 275 (250–332).</p> <p> <i>Legs</i>: Legs II slightly thickened. Strong ventral spine on femur IV absent. All setae on legs setiform and smooth. Tibia III with 9 setae, tibia IV with 10 setae.</p> <p> <b>Notes.</b> This new species belongs to the <i>P</i>. <i>belemensis</i> species group. The new species differs from other species of this group, i.e. <i>P</i>. <i>belemensis</i> Fain <i>et al</i>., 1977, <i>P</i>. <i>contumex</i> OConnor <i>et al</i>., 1991, <i>P</i>. <i>certator</i> OConnor <i>et al</i>., 1991 and <i>P</i>. <i>contentiosus</i> OConnor <i>et al</i>., 1991 mainly in the short <i>j5</i> and long z5 setae, strong <i>r3</i> and <i>S5</i> setae and the lateral bulbous swelling on <i>j1</i>, <i>r3</i> and some ventral setae. The male of the new species is characterized by an extremely long spermatodactyl and the absence of ventral spine on femur IV.</p> <p> <b>Etymology.</b> The name of the new species is derived from the generic name of its type host, <i>Threnetes ruckeri</i>.</p>Published as part of <i>Dusbabek, Frantisek, Literak, Ivan, Capek, Miroslav & Havlicek, Martin, 2007, Ascid mites (Acari: Mesostigmata: Ascidae) from Costa Rican hummingbirds (Aves: Trochilidae), with description of three new species and a key to the Proctolaelaps belemensis species group, pp. 51-67 in Zootaxa 1484</i> on pages 53-56, DOI: <a href="http://zenodo.org/record/176933">10.5281/zenodo.176933</a&gt