Proctophyllodes parkesiae Mironov sp., 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 : 98-101

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Proctophyllodes parkesiae Mironov sp.


Proctophyllodes parkesiae Mironov sp. n.

( Figs. 58 View FIGURE 58 –60)

Type material. Male holotype ( ZISP 6251 View Materials ), 6 male and 8 female paratypes from Parkesia motacilla (Vieillot, 1809) ( Parulidae ), COSTA RICA, Rincón de la Vieja National Park , Cordillera de Guanacaste Mts., 10°46’N, 85°18’N, 16 August 2009, collectors I. Literak, O. Sychra and M. Capek.

Depositories. Holotype, 4 male, 8 female paratypes (ZISP 6252–6258)—ZISP; 1 male and 1 female paratype—UMMZ (BMOC-15-1028-011), 1 male and 1 female paratype—IMUCR.

Diagnosis. MALE (holotype, range for 6 paratypes in parentheses). Idiosoma, length × width, 200 (195–215) × 115 (115–125), length of hysterosoma 130 (130–135). Prodorsal shield: setae vi absent, antero-lateral extensions acute, lateral margins entire, posterior margin almost straight, posterior angles rounded, length 67 (62–68), width 67 (63–69), surface without ornamentation ( Fig. 58 View FIGURE 58 A). Scapular setae se separated by 45 (43–46). Scapular shields narrow. Humeral shields well developed, not fused with epimerites III, encompassing bases of setae cp. Setae c2 on antero-medial angle of humeral shields. Subhumeral setae c3 lanceolate, 14 (12–15) × 2.5 (2.5–3). Hysteronotal shield: anterior margin concave, anterior angles acute, length 130 (130–135), width at anterior margin 72 (67–73), surface without ornamentation. Supranal concavity opened terminally, anterior end slightly extending beyond level of setae h1, length 27 (25–30). Posterior margin of opisthosoma between setae h2 slightly concave. Terminal lamellae ovate, not overlapping, with pennate venation, length 32 (27–33), maximal width 20 (20–25), distance between bases 6 (6–7). Distances between hysteronotal setae: c2:d2 50 (50–54), d2: e2 52 (52–55), e2:h3 25 (25– 30), d1:d2 22 (20–25), e1: e2 15 (15–20), h1:h2 15 (15–22), h2:h2 45 (45–50), h3:h3 30 (30–35), ps2:ps2 52 (52– 60).

Epimerites I fused into a narrow U, without lateral extensions. Setae 4b situated slightly posterior to inner tips of epimerites IIIa. Epimerites IVa well developed, not extending to level of setae 4a. Genital arch of moderate size, 18 (17–19) long, 26 (25–28) wide, its base situated at midlevel of trochanters IV. Genital organ (aedeagus wrapped by genital sheath) stylet-shaped, slightly curved, directed backward immediately from genital arch apex, almost extending to level of setae g, 25 (25–27) in length; genital sheath thin, tapering apically, and almost extending to apex of aedeagus ( Figs. 58 View FIGURE 58 B, 60A, B). Setae 4a slightly anterior to level of genital arch apex. Paragenital and pregenital apodemes absent, genital papillae not connected. Opisthogastric shield represented by a pair of longitudinal plates with strongly uneven margins; anterior ends joined to genital arch with small lateral extensions; posterior ends narrowed and flanking anal field antero-laterally; length of sclerites 37 (30–38), distance between outer margins 32 (30–32). Accessory sclerites and postanal sclerites absent. Setae g and ps3 slightly thickened basally, their bases arranged in a rectangle and both situated on opisthogastric shield; distances between these setae: g:g 15 (12–15), g:ps3 12 (12–14), ps3:ps3 18(18–20). Distance from genital arch apex to setae ps1 75 (75– 78). Adanal suckers short cylindrical, 12 (12–14) long, 10 (10–11) wide (in apical part), corolla with 15–16 small and rounded denticles.

Femora I, II with narrow ventral crest. Solenidion σ 1 I longer than genu I and situated close to base of this segment. Solenidion σ III situated in basal half of genu III (Fig. 60C, D). Tarsus IV 22 (22–25) long; button-like seta d situated in basal third of this segment and about 1.5 times wider than button-like seta e (Fig. 60E). Length of solenidia: σ 1 I 27 (27–33), σ III 13 (12–16), φ IV 30 (30–37).

FEMALE (range for 8 paratypes). Idiosoma, length × width, 310–335 × 125–135, length of hysterosoma 205– 220. Prodorsal shield: shape and surface as in males, posterior margin straight or slightly concave, length 77–87, width 87–100. Scapular setae se separated by 62–72. Scapular shields narrow. Humeral shields not fused with epimerites III, touching bases of setae cp. Setae c2 on antero-medial angles of humeral shields or off these shields. Subhumeral setae c3 narrowly lanceolate, 20–22 × 4.5–5. Lobar region of opisthosoma distinctly separated from remaining part of hysterosoma; hysteronotal shield split dorsally into anterior and lobar parts by narrow transverse furrow, but remains connected ventro-laterally by narrow sclerotized bands. Anterior hysteronotal shield roughly rectangular, with anterior margin concave, with posterior margin straight, surface without ornamentation, greatest length 155–170, width at anterior margin 82–88 ( Fig. 59 View FIGURE 59 A). Lobar shield entire, 52–55 long, 72–77 wide, anterior margin concave. Opisthosomal lobes slightly longer than wide at base (1.2–1.3); terminal cleft almost rectangular, 28–33 in length, 15–17 in width. Setae h1 on soft tegument between anterior hysteronotal and lobar shields. Setae ps1 on lateral margins of terminal cleft, closer to level of setae h3 than h2. Setae h2 strongly thickened in basal part, subequal in length to terminal appendages, 70–80 long; setae h3 55–62 long, about 1/2 the length of terminal appendages. Distance between dorsal setae: c2:d2 75–80, d2:e2 77–90, e2:h2 35–40, h2:h 3 27–30, d1:d2 35–37, e1: e 2 30–42, h1:h 2 16–18, h2:ps 1 17–20, h1:h 1 15–20, h2:h2 65–68.

Epimerites I shaped as in males. Epimerites IVa small. Epigynum almost semicircular, with tips not extending to level of genital papillae, with lateral extensions short and poorly sclerotized, length 32–35, greatest width 60–64 ( Fig. 59 View FIGURE 59 B). Bases of genital papillae not connected. Genital setae g anterior to level of setae 3a. Translobar apodemes connected each other anterior to terminal cleft. Setae ps2 situated approximately at midlevel of anal opening; distance between setae: ps2:ps2 32–33, ps2:ps 3 12–15, ps3:ps 3 17–18. Flaps of anal opening not protruding into terminal cleft. Copulatory opening situated at anterior margin of fused translobar apodemes and covered with posterior ends of anal flaps. Head of spermatheca small cone-like, with two small bead-like enlargements, primary spermaduct without enlargements, secondary spermaducts short, 2–3 long (Fig. 60F).

Legs I, II as in males. Solenidion σ III situated in basal half of genu III. Legs IV with ambulacral disc extending to level of setae h3. Length of solenidia: σ 1 I 32–35, σ III 20–22, φ III 40 –42, φ IV 32 –35.

Differential diagnosis. The new species, Proctophyllodes parkesiae sp. n., belongs to the quadratus species group in having setae g and ps3 arranged in a rectangle in males. Within this group, P. parkesiae is most similar to P. trisetosus Atyeo and Braasch, 1966 , described from Sturnella magna (Linnaeus) ( Icteridae ) in the USA ( Atyeo & Braasch 1966) in having the pieces of the opisthogastric shield completely separated and the aedeagus extending to the level of setae g in males. The new species differs from P. trisetosus by the following features: in males of P. parkesiae , the terminal lamellae are shorter and wider (27–33 × 20–25 µm), the corolla of the anal discs with 15– 16 denticles, the anterolateral extensions of the opisthogastric shields are short, poorly distinct; in females, macrosetae h2 are subequal in length to the terminal appendages, setae h3 are slightly longer than 1/2 the length of the terminal appendages, and the terminal cleft is rectangular and longer than wide. In males of P. trisetosus , the terminal lamellae are larger (c. 43 × 28 µm), the corolla of anal discs has 18 denticles, the anterolateral extensions of the opisthogastric shields are long; in females, macrosetae h2 are nearly 1.5 times longer than the terminal appendages, setae h3 are about 1/4 the length of the terminal appendages, and the terminal cleft is trapezoidal and wider than long.

Etymology. The specific epithet is derived from the generic name of the host and is a noun in the genitive case.


Zoological Institute, Russian Academy of Sciences