Anisophyllodes cuneiformis Mironov, 2017

Mironov, Sergey V., Literak, Ivan, Sychra, Oldrich & Capek, Miroslav, 2017, Feather mites of the subfamily Proctophyllodinae (Acari: Proctophyllodidae) from passerines (Aves: Passeriformes) in Costa Rica, Zootaxa 4297 (1), pp. 1-105 : 67-71

Anisophyllodes cuneiformis Mironov sp. n.

( Figs. 37–39 )

Type material. Male holotype ( ZISP 6400 ), 9 male and 9 female paratypes from Sittasomus griseicapillus (Vieillot, 1818) (Furnariidae) , COSTA RICA, Tapantí National Park , Sector Tapantí, Cordillera de Talamaca Mts., 09°46′N, 83°47′W, 2 August 2009, collectors I. Literak, O. Sychra and M. Capek.

Depository. Holotype, 7 male and 7 female paratypes (ZISP 6401–6414)—ZISP; 1 male, 1 female paratypes—UMMZ (BMOC-15-1028-003), 1 male, 1 female paratypes—IMUCR.

Description. MALE (holotype, range for 9 paratypes in parentheses). Idiosoma, length × width, 325 (320– 340) × 170 (170–180), length of hysterosoma 205 (200–220). Prodorsal shield: antero-lateral extensions short and acute, lateral margins without incisions, posterior angles obliquely cut, posterior margin almost straight, setae ve rudimentary, surface with numerous cuneiform lacunae, length along midline 92 (90–95), width at posterior margin 115 (110–120). Scapular setae se separated by 72 (70–75). Setae c 2 in antero-mesal angles of humeral shields. Setae cp on humeral shield. Setae c3 lanceolate, 23 (22–25) × 6 (5–6.5). Distance between prodorsal and hysteronotal shields along midline 40 (40–45). Hysteronotal shield: 200 (200–215) in length, 110 (110–120) in width; anterior margin slightly concave; anterior angles acute, surface with numerous cuneiform lacunae in anterior part and with ovate lacuna in posterior part (Fig. Fig. 37 A). Setae c1 on anterior margin of hysteronotal shield. Opisthosoma noticeably attenuate from level of trochanters IV to lobar apices; opisthosomal lobes small roughly triangular, their postero-lateral margins with narrow and rounded terminal lamellae, about 3 in greatest length and 24 (22–25) in width. Terminal cleft between lobes slit-shaped, anterior end of the cleft extending to level of setae h3, length from anterior end to posterior margin of lobes 20 (20–24). Supranal concavity distinct, represented by narrow longitudinal groove opened posteriorly. Setae h2 situated on small lateral extensions of opisthosomal lobes, setae h3 on outer margins of opisthosoma, at level of opisthosomal lobe bases. Setae ps1 minute filiform, situated on lateral margins of terminal cleft noticeably posterior to level of setae h3. Distance between dorsal setae: c2:d2 72 (70–75), d2:e2 82 (80–88), e2:h3 37 (35–40), h2:h2 40 (40–44), h3:h3 30 (30–32), ps2:ps2 52 (50–55), h1:h3 15 (15–18), h3:ps1 10 (10–12), d1:d2 20 (20–25), e1: e2 25 (25–30).

Epimerites I free, well separated, with posterior tips slightly divergent, without surface fields; epimerites II with narrow sclerotized fields ( Fig. 37 B). Epimerites IVa rudimentary, rudimentary sclerite rEpIIa present. Genital arch inverted, 12 (12–14) in length and 28 (27–33) in width; basal sclerite bow-shaped, similar in size and form to genital arch. Aedeagus dagger-like, 23 (20–24) in length, reaching midlevel between setae g and ps3 ( Fig. 39 A, B). Distance from margin of genital apparatus to lobar apices 95 (90–105). Genital papillae on small transverse plates at level of anterior margin of basal sclerite. Pregenital apodemes represented by a pair of longitudinal sclerites, their anterior ends fused with inner tips of epimerites IIIa, posterior ends of these apodemes extending to bases of setae 4a; setae 4b situated on anterior parts of these apodemes. Distance between ventral setae: 3a:4b 17 (13–18), 4b:4a 30 (30–32), 4a:g 40 (40–45), g:g 18 (17–20), g:ps3 20 (19–20), ps3:ps3 18 (17–19), ps3:h3 43 (42–44). Adanal suckers 10 (10–12) in diameter, corolla with 6–7 denticles on posterior margin. Adanal shields of complicated uneven form (roughly V- or L-shaped), situated antero-lateral to adanal suckers, with inner branches touching or encompassing bases of setae ps3. Cupules ih present, surrounded by sclerotized areas ( Fig. 37 A).

Femora I, II with ventral crest, other segments of legs I, II without processes. Solenidion σ 1 I 1.5 times longer than genu I and situated at midlevel of this segment ( Fig. 39 C, D). Solenidion σ of genu III situated at midlevel of segment. Legs IV slightly thicker than legs III, with tarsus IV extending beyond level of terminal lamellae. Tarsus IV 27 (27–28) long, with rounded apex and apicoventral claw-like process near base of l seta r; modified setae d, e button-like, seta d situated in distal half of this segment ( Fig. 39 F). Setae d, f of tarsi II, III subequal in length. Length of solenidia: σ 1 I 37 (37–38), σ III 30 (30–32), φ IV 35 (35–38).

FEMALE (range for 9 paratypes). Idiosoma, length × width, 400–410 × 180–190, length of hysterosoma 260– 270. Prodorsal shield: anterolateral extensions acute, lateral margins entire, posterior margin with blunt-angular median extensions and with a pair of shallow concavities, surface with numerous dash-like and narrowly ovate lacunae, 105–108 in length and 130–135 in width. Setae ve rudimentary. Setae se separated by 85–87. Setae c2 on antero-mesal angles of humeral shields. Setae c3 lanceolate, 22–24 × 5–5.5. Setae cp on humeral shields. Distance between prodorsal and hysteronotal shields along median line 30–35. Hysteronotal shield completely split into anterior and lobar parts. Anterior hysteronotal shield: 190–200 in length and 115–120 in width; anterior margin slightly concave, anterior angles acute, posterior margin with a pair of very short blunt-angular extensions, surface with numerous small narrowly-ovate lacunae ( Fig. 38 A). Setae c1 on anterior margin of hysteronotal shield. Lobar region: anterior margin concave, sinuous, greatest length 73–75, greatest width 112–115. Terminal cleft parallelsided, shaped as an inverted U, 48–52 in length and 22–25 in width. Supranal concavity indistinct. Setae h1 inserted on striated tegument between the anterior hysteronotal and lobar shields. Setae h2 strongly thickened basally, with filiform apical part, 105–110 in length, 6.5–7.7 in width; setae h3 47–52 in length. Setae h1 and f 2 in trapezoidal arrangement.

Distance between dorsal setae: c2:d2 85–88, d2:e2 105–110, e2:h2 42–48, h2:h 3 30–32, h1:h2 36–38, d1:d 2 20–22, e1: e2 45–48, h1:h1 35–38, h2:h2 96–100, h2:ps 1 16–18.

Epimerites I as in male; epimerites I–II with narrow sclerotized fields. Epimerites IVa present, with long anterior and posterior extensions ( Fig. 38 B). Epigynum semicircular, thick, with small lateral extensions, 47–50 in length, 70–73 in width, tips extending to level of anterior pair of genital papillae. Genital papillae of each side on small ovate sclerite. Setae ps2 at midlevel of anal opening. Translobar apodemes fused to each other anterior to terminal cleft. Copulatory opening ventral, situated immediately posterior to flaps of anal opening, head of spermatheca short, proximal part of primary spermaduct with ampuliform enlargement, secondary spermaducts 40–45 long ( Fig. 39 G). Distance between pseudanal setae: ps2:ps2 50–52, ps3:ps 3 20–21, ps2:ps 3 10–13.

Legs I, II as male. Solenidion σ of genu III situated in basal part this segment. Legs IV with ambulacral disc extending to level of setae h2. Solenidion φ of tibia IV slightly shorter than corresponding tarsus. Setae d of tarsi II–IV subequal in length to corresponding setae f. Length of solenidia: σ 1 I 35–37, σ III 24–25, φ III 47 –50, φ IV 25– 28.

Differential diagnosis. Among the four previously known species, Anisophyllodes cuneiformis sp. n. is most similar to A. pipromorphae in having the apicoventral extension of tarsus IV with a single point in males, and the entire surface of the dorsal shields with lacunae in both sexes. Anisophyllodes cuneiformis differs from A. pipromorphae by the following features. In males of A. cuneiformis sp. n., the prodorsal and hysteronotal shields are ornamented with numerous cuneiform and polygonal lacunae, the terminal lamellae are situated obliquely, setae ps1 are situated posterior to the level of setae h3, the genital arch is inverted and its branches are directed anterolaterally; in females, the posterior margin of the hysteronotal shield does not have a median extension and the prodorsal shield bears small ovate and dash-like lacunae. In males of A. pipromorphae , the prodorsal and hysteronotal shields have numerous circular and ovate lacunae (up to 8 µm in diameter), the terminal lamellae are situated on the truncate posterior margins of the opisthosomal lobes, setae ps1 are situated at the level of setae h3 or slightly anterior to this, the genital arch is normally orientated, with branches directed posterolaterally; in females, the posterior margin of the anterior hysteronotal shield has a rounded medial extension and the prodorsal shield has numerous ovate lacunae ( Fig. 41 A).

Etymology. The specific epithet refers to the triangular form of the lacunae on the dorsal shields in males resembling cuneiform writing.

Figures

FIGURE 37. Anisophyllodes cuneiformis Mironov sp. n., male. A—dorsal view, B—ventral view.

FIGURE 38. Anisophyllodes cuneiformis Mironov sp. n., female. A—dorsal view, B—ventral view.

FIGURE 39. Anisophyllodes cuneiformis Mironov sp. n., details. A—opisthosoma of male, ventral view, B—genital apparatus of male, dorsal view, C, D—legs I and II of male, dorsal view, E—tibia and tarsus IV of male, dorsal view, F—tibia and tarsus IV of male, ventral view, G—spermatheca and spermaducts.

FIGURE 41. Anisophyllodes pipromorphae Atyeo, 1967, female. A—dorsal view, B—ventral view.