Trouessartia latiducta , Hernandes, Fabio Akashi, 2014

Hernandes, Fabio Akashi, 2014, Five new species of the feather mite genus Trouessartia Canestrini from South America (Acari: Trouessartiidae), Zootaxa 3856 (1): -1

publication ID

http://dx.doi.org/10.11646/zootaxa.3856.1.2

publication LSID

lsid:zoobank.org:pub:F2E274C7-A445-42F0-A8C0-34EB2157370F

persistent identifier

http://treatment.plazi.org/id/03D18799-F975-FFA7-FF48-FC48FA3AFCEA

treatment provided by

Plazi

scientific name

Trouessartia latiducta
status

sp. nov.

Trouessartia latiducta  sp. nov.

( Figs. 1–3View FIGURE 1View FIGURE 2View FIGURE 3)

Type-host: Phylloscartes kronei Willis & Oniki, 1992  ( Passeriformes  , Tyrannidae  ), Restinga Tyrannulet.

Type-locality: Guaratuba, Paraná, Brazil.

Material examined. Male holotype, 12 male and 22 female paratypes (bird code K- 12) ex Phylloscartes kronei  , BRAZIL: Guaratuba, Paraná, 25 º 45 ’S, 48 º 43 ’W, 13 January 2012, coll. C.O.A. Gussoni; paratypes from same host, locality and collector, from different bird specimens, 12 January 2012: 4 males and 2 females (K- 2), 4 males and 9 females (K- 3), 1 male and 1 female (K- 19), 1 male (K- 10). Type specimen deposition: holotype and most paratypes at DZUnesp-RC; 2 male and 2 female paratypes at each of DZSJRP, OSAL, UMMZ, ZISP.

Etymology. The specific epithet refers to the wide and large external copulatory tube on females.

Description. Male (holotype, range for 5 paratypes in parentheses). Length of idiosoma from anterior end to bases of setae h 3 480 (466–486), greatest width of idiosoma at level of humeral shields 224 (227–241). Length of hysterosoma from sejugal furrow to bases of setae h 3 330 (314–329). Prodorsal shield: length along midline 145 (142–154), greatest width of posterior part 162 (156–171), anterior part at level of trochanters II not narrowed, anterolateral extensions almost extending to bases of epimerites Ia between legs I and II, lateral margins not fused with scapular shields, posterior margin almost straight, surface with faint network pattern ( Fig. 1View FIGURE 1 A). Vertical setae ve represented only by alveoli. Internal scapular setae si thin needle-like, 40 (34–40) long, separated by 66 (64–69); external scapular setae se 170 (144–174) long, separated by 113 (106–118). Humeral shield with setae c 2 needlelike, 51 (56–69) long. Setae c 3 narrowly lanceolate, acute apically, 33 (31–34) long. Prohysteronotal and lobar shields mainly connected laterally by narrow bridges. Prohysteronotal shield: length 198 (197–212), width at widest part near the anterior margin 169 (161–176), lateral margins with shallow incisions at level of trochanters III, dorsal hysterosomal apertures (DHA) absent, central area with a faint network pattern. Dorsal setae d 1, d 2 present, minute. Length of lobar shield excluding lamellae 118 (98–119). Apical parts of opisthosomal lobes approximate, separated by narrow parallel-sided terminal cleft, length of cleft from anterior end to apices of lamellae 81 (71–83), width in anterior part 15 (18–20). Lamellae semi-ovate, slightly attenuate apically, margins smooth, length from bases of setae h 3 to lamellar apices 43 (43–52). Seta h 2 267 (293–335) long, seta h 3 185 (191–225) long. Distance between dorsal setae: c 2: d 2 95 (89–97), d 2: e 2 94 (96–118), e 2: h 2 111 (80–113), h 2: h 3 31 (28–32), h 2: h 2 68 (62–70), h 3: h 3 55 (53–60), d 1: d 2 44 (39–44), e 1: e 2 42 (47–50).

Epimerites I free. Rudimentary sclerites rEpIIa small, circular. Genital apparatus situated between levels of trochanters III, IV, length excluding basal sclerite 68 (65–69), greatest width 31 (29–35) ( Fig. 1View FIGURE 1 B). Epiandrum present. Setae g thin, filiform. Postgenital plaque absent. Adanal apodemes heavily sclerotized, without rounded apophyses. Translobar apodeme present. Adanal shields absent, setae ps 3 inserted on soft tegument. Anal suckers 14 (12–15) in diameter, distance between centers of discs 42 (41–44). Epimerites IVa wide and long, anterior ends reaching level of setae 4 a. Setae 4 b situated anterior to level of setae 3 a, setae g and 4 a situated approximately at same transverse level. Distance between ventral setae 4 b: 3a 45 (42–47), 4 b: g 103 (89–105), g: ps 3 60 (54–72), ps 3: ps 2 59 (60–63).

Legs IV extending by ambulacral disc to level of setae h 3. Setae sR of trochanters III short, narrowly lanceolate, acute apically, 17 (17–20) long. Modified setae d of tarsus IV barrel-shaped, with discoid cap, situated at midlevel of segment; modified setae e hemispheroid, without cap, situated apically ( Fig. 3View FIGURE 3 D). Length of solenidia: σ 1 of genu I 45 (48–55), σ of genu II 16 (15–21), σ of genu III 25 (27–36), ϕ of tibia I 80 (77–82), ϕ of tibia II 88 (84–94), ϕ of tibia III 71 (68–77), ϕ of tibia IV 39 (41–47), ω 1 of tarsus I 21 (20–26), ω 3 of tarsus I 29 (29–34), ω 1 of tarsus II 22 (23–26).

Female (range for 5 paratypes). Length of idiosoma from anterior end to apices of lamellar lobar processes 525–579, greatest width 220–248. Length of hysterosoma from sejugal furrow to apices of lamellar lobar processes 372–408. Prodorsal shield: shaped as in male, 145–157 in length, 156–171 in width, surface with faint network pattern ( Fig. 2View FIGURE 2 A). Vertical setae ve represented only by alveoli. Setae si thin needle-like, 29–35 long, separated by 67–74; setae se 126–171 long, separated by 106–117. Humeral shields with setae c 2 needle-like, 54–59 long. Setae c 3 narrowly lanceolate, acute apically, 27–32 in length. Hysteronotal shield: length from anterior margin to bases of setae h 3 319–351, width at largest part near anterior margin 156–174, lateral margins with incisions at level of trochanters III, DHA absent, anterior part with faint circular and oval ornamentation, posterior part with more defined circular and ovate lacunae. Dorsal setae d 1, d 2 present. Setae h 1 lanceolate, 26–32 long, situated anteromesal to bases of setae h2, 22– 28 from each lateral margin of hysteronotal shield. Width of opisthosoma at level of setae h 2 101–113. Setae ps 1 positioned dorsally on opisthosomal lobes, closer to bases of h 3 than to h 2, equidistant from outer and inner margins of lobe. Distance from bases of setae h 3 to membranous apices of lobes 42–50. Setae f 2 absent. Supranal concavity open posteriorly into terminal cleft. Length of terminal cleft together with supranal concavity 166–180, width of cleft at level of setae h 3 39–48. Interlobar membrane occupying anterior 1 / 4 of terminal cleft, distance from free margin of membrane to membranous lobar apices 110–115. External copulatory tube present, wide cylindrical, with wide circular opening, 31–46 long, 13–19 wide. Spermatheca as in Fig. 3View FIGURE 3 I. Distance between dorsal setae: c 2: d 2 91–100, d 2: e 2 93 –103, e 2: h 2 73–82, h 2: h 3 71–83, h 2: h 2 83–92, h 3: h 3 68–76, d 1: d 2 37–46, e 1: e 2 43 –55, h 1: h 2 17–29, h 1: h 1 49–55, ps 1: h 3 18: 25.

Epimerites I free. Epigynum 53–61 in length, 97–108 in width ( Fig. 2View FIGURE 2 B). Epimerites IVa present, wide. Anal opening with pair of small sclerites situated at level of its anterior end. Setae sR of trochanters III narrowly lanceolate, acute apically, 19–22 long. Legs IV extending by ambulacral disc to level of setae ps 1. Length of solenidia: σ 1 of genu I 44 –58, σ of genu II 15–24, σ of genu III 24–35, ϕ of tibia I 74 –82, ϕ of tibia II 83 –94, ϕ of tibia III 60 –76, ϕ of tibia IV 37 –43, ω 1 of tarsus I 19–23, ω 3 of tarsus I 27–35, ω 1 of tarsus II 20–27.

Differential diagnosis. Trouessartia latiducta  sp. nov. resembles T. sicaliae  sp. nov. by having, in males, setae h 3 about as long as h 2, lamella margins smooth, dorsal hysteronotal apertures (DHA) absent, and in females, setae h 1 dagger-like. However, it clearly differs from T. sicaliae  by having opisthosomal lobes in males slightly more separated (the terminal cleft length is about 4.5 times longer than wide at the level of setae h 3), and setae g filiform and transversely aligned with setae 4 a; in females, the external copulatory tube is cylindrical, short and wide (31–46 long, 13–19 wide) much wider and blunt, and setae ps 1 are inserted closer to h 3 than to h 2. In T. sicaliae  sp. nov., males have opisthosomal lobes narrower (the terminal cleft length is about 8.5 times longer than wide at level of h 3), setae g are thickened and inserted clearly anterior to the level of setae 4 a; in females the external copulatory tube is elongated and attenuate apically (51–60 long) and setae ps 1 are inserted mid-way between setae h 3 and h 2.

OSAL

Ohio State University Acarology Laboratory

UMMZ

University of Michigan, Museum of Zoology

ZISP

Zoological Institute, Russian Academy of Sciences