Aniacarus ani, Mironov, Sergey V., Hernandes, Fabio A. & Pedroso, Luiz Gustavo A., 2015

Mironov, Sergey V., Hernandes, Fabio A. & Pedroso, Luiz Gustavo A., 2015, New feather mites of the genera Aniacarus and Aniibius (Acariformes: Pterolichidae) from two cuckoo species (Cuculiformes: Cuculidae) in Brazil, Zootaxa 3937 (1), pp. 103-126 : 107-111

Aniacarus ani sp. n.

( Figs. 1–3 )

Type material. Male holotype (DZUNESP-RC #2308), 5 male and 8 female paratypes from Crotophaga ani ( Cuculiformes : Cuculidae ), BRAZIL, São Paulo State, Pedreira, 22°44’S 46°54’W, November 2012, D.V. Boas- Filho col. (#1089); other paratypes: 7 males and 4 females, same data and collector (#1091); 1 female, same host species, BRAZIL, São Paulo State, Tanquinho Velho, Jaguariúna, 5 December 2009, D.V. Boas-Filho col. (#639); 5 females, same host species, BRAZIL, São Paulo State, Campinas, Rodovia SP-340, km125.5, 2 June 2011, D.V. Boas-Filho col. (#977).

Depository. Holotype, 9 male and 15 female paratypes—DZUNESP-RC, 3 male and 3 female paratypes—ZISP.

Description. MALE (holotype, range for 5 paratypes in parentheses). Gnathosoma almost rectangular, length including palps 49 (49–53), width at base 48 (46–56). Idiosoma length from anterior end to lobar apices 275 (275–290), greatest width at level of humeral shields 175 (175–190); length of hysterosoma 195 (195–215). Prodorsal shield: occupying anterior part of prodorsum, slightly extending posterior to level of scapular setae si ( Fig. 1 A), length along midline 55 (54–58), greatest width 74 (58–87). Setae vi filiform, subequal in length to chelicerae, their bases separated by 21 (21–25); setae si filiform, 15 (14–16) long; setae se separated by 71 (69–73). Setae c2 narrowly spiculiform, 32 (32–48) long, situated in anterior angles of humeral shields. Subhumeral setae c3 thin, with filiform apex, 26 (26–33) long. Hysteronotal shield: greatest length from anterior margins to bases of setae h3 185 (185–200), width at anterior margin 135 (135–150), anterior margin nearly straight, surface without ornamentation. Hysteronotal gland opening gl poorly distinct, situated equidistant from levels of cupules im and setae e2. Setae e1 situated posterior to hysteronotal gland openings gl. Supranal concavity present. Opisthosomal lobes scarcely expressed; terminal cleft small, shallowly concave, 8 (6–8) long, with small ledges on lateral margins. Setae e2 and f2 narrowly lanceolate, 34 (34–39) and 34 (34–42) long, respectively; setae ps2 62 (61–82) long; setae ps1 narrowly lanceolate in proximal part and filiform apex, 63 (45–68) long. Distances between dorsal setae: c2:d2 82 (78–80), d2: e2 60 (58–64), e2:h3 50 (47–54), d1:d2 35 (29–35), e1: e2 7 (5–11), h1:h3 31 (27–33), h2:h2 73 (69–79), h3:h3 48 (46–55), ps1:ps1 29 (29–34), ps2:ps2 94 (86–96).

Epimerites I fused into a Y, sternum about 1/3 of total length of epimerites. Genital apparatus 20 (18–21) in length, 14 (12–16) in width, anterior half extending beyond level of epimerites IIIa. Setae 4b situated slightly anterior to level of setae 3a. Setae g situated at level of genital apparatus apex, genital papillae at midlevel of this apparatus. Distances between ventral setae: 4b:3a 5 (5–7), 4b:g 10 (10–12), g:4a 37 (36–38), ps3: h3 50 (50–52). Adanal suckers 16 (14–16) in diameter, with radial striation, corolla without indentations.

Tarsi I, II with heavily sclerotized dorsal surface. Genua I, II with slightly inflated and heavily sclerotized ventral surface. Femora IV with small dorso-apical spine. Solenidion σ1 of genu I approximately 1.5 times longer than this segment. Setae mG of genua I, II subequal in length. Solenidion φ of tibia IV approximately 1.5 times longer than corresponding tarsus. Setae d, e of tarsi IV button-like, poorly sclerotized. Length of tarsi: I 19 (19–26), II 22 (19–27), III 32 (32–38), IV 34 (34–41). Length of tarsal solenidia: ω 1 I 11 (10–13), ω 1 II 16 (14–16).

FEMALE (range for 5 paratypes). Gnathosoma, length × width, 53–60 × 40–46. Idiosoma, length × width, 345–360 × 210–230, length of hysterosoma 235–275. Prodorsal shield shaped as in male, 59–65 × 70–81. Setae vi slightly shorter than chelicera, their bases separated by 23–27, setae si filiform, 17–22 long, setae se separated by 75–80. Setae c2 thick spiculiform, 35–42 long, situated in anterior angles of humeral shields. Subhumeral setae c3 almost filiform, 25–33 long. Hysteronotal shield: length 235–245, width 155–170, posterior half with large Ushaped area having longitudinal striation. Supranal concavity present, circular. Hysteronotal gland openings gl anterior to setae e2. Setae h1 and e2 at same transverse level. Setae h1 spiculiform, 10–15 long, setae e1, e2, f2, ps1 ps2 filiform, 15–20 long. External copulatory tube terminal, about 5 long. Spermatheca and spermaducts as in Fig. 3 F. Distances between dorsal setae: c2:d2 85–100, d2: e2 85–95, e2:h3 44–56, d1: d 2 30–49, e1: e2 38–47, h1:h3 41–50, h1:h 1 31–35, h2:h2 40–56, h3:h3 32–35, ps1: ps 1 18–20.

Epimerites I as in male. Epigynum as slightly curved transverse sclerite, 7–11 long, 24–29 wide. Apodemes of egg-laying opening rudimentary. Setae g situated slightly posterior to levels of setae 3a. Distances between ventral setae: 4b:g 17–24, g:4a 47–53.

Legs I–III as in male. Solenidion φ of tibiae IV about 1/3 of this segment. Length of tarsi: I 25–29, II 26–29, III 43 –45, IV 55 –59. Length of tarsal solenidia: ω 1 I 10–14, ω 1 II 14–19.

Differential diagnosis. The new species, Aniacarus ani sp. n. is very close to A. mexicanus Gaud and Atyeo, 1990 and differs from it by the following features. In both sexes of A. ani , the prodorsal shield slightly extends beyond the level of scapular setae si ( Figs. 1 A, 2A); in males, the anterior end of the genital apparatus distinctly extends beyond the level of inner tips of epimerites IIIa, setae e2 are narrowly lanceolate, setae ps2 are twice as long as setae f2 ( Fig. 1 B); in females, the width of epigynum is less than the distance between setae 4b ( Fig 2 B). In both sexes of A. mexicanus , the prodorsal shield does not extend beyond the level of scapular setae; in males, the genital apparatus is very short and does not extend to the level of tips of epimerites IIIa, setae e2 are filiform, setae f2 and ps2 are subequal in length; in females, the epigynum is as wide as the distance between setae 4b.

Etymology. The specific epithet is taken from the specific name of the host and is a noun in apposition.

Figures

FIGURE 1. Aniacarus ani sp. n., male. A — dorsal view, B — ventral view.

FIGURE 2. Aniacarus ani sp. n., female. A — dorsal view, B—ventral view.

FIGURE 3. Aniacarus ani sp. n., details. A – D — legs I – IV of male, respectively, E—tarsus and tibia IV of female, F—spermatheca.