Proctolaelaps threnetes Dusbabek & Literak,

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, Zootaxa 1484, pp. 51-67: 53-56

Proctolaelaps threnetes Dusbabek & Literak  Edit , sp. nov.

( Figs. 1–9)

Type material: Female holotype, male paratype and five female paratypes ex Threnetes  Edit ruckeri (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.

Material examined. 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 Eutoxeres aquila (Bourcier, 1847)  Edit , 3 females ex Phaethornis superciliosus  Edit (L., 1766) and 2 females ex one specimen of Chalybura urochrysia (Gould, 1861)  Edit of the same data and locality; 2 females ex Threnetes  Edit ruckeri, Hitoy Cerere BR, August 2004; 3 females ex 3 specimens of Phaethornis superciliosus  Edit and 3 females ex 2 specimens of Phaethornis longuemareus (Lesson, 1832)  Edit of the same data and locality; all coll. I. Literak.

Diagnosis. Species of the P. belemensis  Edit group with setae j 1 and r 3 with lateral bulbous swelling. Relatively large species, with female body length frequently exceeding 600 μm. Dorsal plate with 43 pairs of setae, setae r 2 –r 6 on the plate. Setae j 5 short (15–22) setae z 5 long (32–39), setae S 5 long (42-54). Spermatodactyl of male very long (250–332), strong ventral spine on femur IV absent.

Female (Holotype). Dorsum: 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 j, z and s each with 6 pairs of seta, series r with 5 pairs. Series J, Z and S each with 5 pairs of setae. Setae j 1 and r 3 with lateral bulbous swelling, setae Z 5 setiform. Setae j 1 measuring 44 (40–44), j 5 17 (15–22), z 5 32 (32–39), r 2 32 (30–36), r 3 42 (40–47), J 5 12 (12–15), S 5 51 (42-51), Z 5 93 (88–95). Peritreme reaching setae z 1, peritremal plate narrow.

Ve n te r: 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 St 1 length 38 (37–42), St 2 and St 3 44 (41–44), Mst 44 (42–49). Distance St 1 –St 2 56 (54–61), St 2 –St 3 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 Jvl 37 (39–44) long, Jv 2 49 (41–54), Jv 5 87 (74–88). Endopodal platelets present, metapodal platelets small and narrow (32 x 8), situated posterior to coxa IV.

Gnathosoma: Deutosternum  Edit with 7 rows of denticles, 5 th and 6 th 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.

Legs: Tibia III with 8–9 setae, tibia IV with 10 setae.

Male. Dorsum: 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 r series lacking setae r 1. Setae r 2 –r 6 and R 1 –R 5 situated on the plate. Setae j 1 and r 3 strong, with lateral bulbous swelling. Setae j 1 spine-like, 37 (32–37) long, setae j 5 short, measuring 27 (17–23) only, setae z 5 longer, measuring 32 (30–34). Setae J 5 minute, 12 (11–12) long, setae Z 5 stout, spine-like, 78 (74–83) long. Setae r 2 fine, 27 (24–27) long, setae r 3 40 (34–39) long. Anterior margin of dorsal plate finely denticulate. Peritreme reaching setae z 1. Peritremal shield narrow.

Ve nt e r: 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 Gv 1 and Gv 2, and a pair of small circular pores between Gv 3 and Gv 4. 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: Jv 1 39 (32–38), Jv 2 49 (42–47), Jv 5 65 (60–74), Zv 1 30 (25–32).

Gnathosoma: Deutosternum  Edit with 7 rows of denticles, 5 th and 6 th rows widened and bent. Spermatodactyl extremely long, measuring 275 (250–332).

Legs: 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.

Notes. This new species belongs to the P. belemensis  Edit species group. The new species differs from other species of this group, i.e. P. belemensis Fain et al., 1977  Edit , P. contumex  Edit OConnor et al., 1991, P. certator  Edit OConnor et al., 1991 and P. contentiosus  Edit OConnor et al., 1991 mainly in the short j 5 and long z 5 setae, strong r 3 and S 5 setae and the lateral bulbous swelling on j 1, r 3 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.

Etymology. The name of the new species is derived from the generic name of its type host, Threnetes  Edit ruckeri.

Figures

FIGURES 1 – 4. Proctolaelaps threnetes Dusbabek & Literak, sp. nov. Fig. 1. Female dorsum. Fig. 2. Female venter. Fig. 3. Male dorsum. Fig. 4. Male venter.

FIGURES 5 – 9. Proctolaelaps threnetes Dusbabek & Literak, sp. nov. Fig. 5. Chelicera and spermatodactyl of male. Fig. 6. Leg II of male, ventrally. Fig. 7. Leg IV of male, ventrally. Fig. 8. Epistome of female. Fig. 9. Chelicera of female.