Proctophyllodes flexuosa, Wang & Wang & Su, 2014

Wang, Zi-Ying, Wang, Jin-Jun & Su, Xiao-Hui, 2014, Four new feather mite species of the genus Proctophyllodes Robin (Astigmata: Proctophyllodidae) from China, Zoological Systematics 39 (2), pp. 248-258 : 249-251

Proctophyllodes flexuosa sp. nov. ( Figs 1–9 )

Holotype male, from Eophona migratoria Hartert ( Passeriformes : Fringillidae ), Beibei (29°48′N, 106°23′E),

Chongqing, China, 22 August 2008, coll. Zi-Ying Wang. Paratypes 2 males and 6 females, same data as holotype .

Male. Idiosoma length (not include lobar) 276 (271, 283), width 150 (105, 176). Prodorsal shield: greatest length 84 (72, 84), greatest width 86 (79, 86); Distances between scapular setae (se-se) 57 (57, 58); lateral margins entire. Setae ve absent. Scapular shields well developed. Setae c 2 in tip of humeral shield. Subhumeral setae c3 lanceolate, 19 (18, 19) in length, 4.2 (4.1, 5.7) width. Hysteronotal shield length 177 (171, 177), width 105 (92, 105) at anterior margin, anterior

© Zoological Systematics, 39(2): 248–258 margin straight. Interval between prodorsal shields and hysteronotal shields 14.5 (14.5, 31.0). Supranal concavity opened from the posterior margin, anterior end extending beyond level of setae e2, and to midlevel between e1 and e2. Terminal lamellae ovate, with pennate venation, length of lamellae 71 (67, 71), maximal width 36.6 (33.7, 35.8), not overlapping. EpimeritesⅠ fused into a narrow U with weak connection, without lateral extensions. Paragenital apodemes absent. Genital discs separate; genital arch in small size, reflexed to opisthosoma; aedeagus reflexing almost at level of setae 3a, terminal beyond lamellae, full-length of aedeagus 280 (278, 280); genital sheath without distal bifurcation. Opisthogastric setae arranged in a trapezoid. Opisthogastric shield adjoining, bearing setae g, ps3, Opisthogastric shield with deep cleft at the level of setae g. Anal suckers cylindrical, 19.4 (15.5, 19.4) in length, 8.7 (7.8, 9.3) in width, with reniform accessory glands. Distances between hysteronotal setae: c1-c1 68 (64–68), c1-d1 14.9 (14.9, 27.8), d1-d2 21.2 (21.2, 35.1), e1- e1 27.8 (27.8, 40.8), h1-h1 50.8 (46.4, 51.7), d2-e1 70.4 (58.4, 70.4), c2-d2 39.2 (30.8, 40.1), d2-e2 97.0 (71, 90), e1-h1 30.9 (32.2, 40.7), e2-h2 37 (30, 37), g-g 12.6 (12.4, 15.7), ps3-ps3 25.2 (15.2, 30.3), g-ps3 12.5 (11.4, 12.5). Tarsus IV 34 (30, 32) long, seta d at near midlevel of this segment.Genual solenidion σ IIIsituated at midlevel of segment. Length of genual solenidia: σ1 I 27 (29, 32), σ III 11 (13, 14).

Female. Length of idiosoma 333–429, width 143–198. Prodorsal shield shaped as in males, length 80–102, width 96-108, setae ve absent. Distances between scapular setae (se-se) 41–78. The arrangement of c1 and c2 as in males. Subhumeral setae c3 lanceolate, 18–24 in length, 6.3–6.9 in width. Hysterosoma shield large and roughly rectangular, with the lobar region, anterior margin shallowly concaved, greatest length 210–230, width at anterior margin 93–112. Interval between prodorsal and hysteronotal shields 29.2–38.8. Setae h1 on anterior margin of lobar shield. Without supranal concavity. Opisthosomal lobes slightly attenuated apically, terminal cleft trapezoid shaped, parallel-sided, 36–39 in length, 33–44 in width. EpimeritesⅠfused into a narrow U, without lateral extensions. Distance between dorsal setae: c1-c1 58–71, c1-d1 34–48, d1-d2 32–49, e1- e2 55–62, h1-h1 26–31, d2- e1 55–73, c1-d2 71–88, d2-e2 105–123, e2-h2 24–54. Genual solenidion σ III situated at posterior segment. Length of genual solenidia: σ1 I 33–40, σ III 12–15.

© Zoological Systematics, 39(2): 248–258

Diagnosis. The new species, Proctophyllodes flexuosa sp. nov., belongs to the glandarinus species group, which have the aedeagus extending to or beyond the lamellar origins. P. flexuosa sp. nov. significantly differs from all other species of this group by the arched male genital, which bends towards opisthosoma and the folded aedeagus.

As for other features, the new species is close to P. glandarinus (Koch, 1841) from Garrulus glandarius (Linnaeus, 1758) (Corvidae) . In the new species, however, the opisthogastric shield of the male is deeply concaved at the level of setae g, and the internal margins of the ovoid lamellae are not overlapping; in females, the lateral margins of propodosomal shield are entire. In males of P. glandarinus , the opisthogastric shield is shallowly concaved at the level of setae g, and the internal margins of the ovoid lamellae are overlapping; in females, the lateral margins of propodosomal shield are incised behind external scapular setae.

Etymology. The specific name, flexuosa , derives from flexuosus (flexural, Lat.), referring to the extraordinarily flexural aedeagus in male.

Figures

Figs 1–3. Proctophyllodes flexuosa sp. nov., male. 1. Dorsal view. 2. Ventral view. 3. Anal sucker. Scale bars: 1–2 = 100μm, 3 = 10μm.

Figs 4–5. Proctophyllodes flexuosa sp. nov., female. 4. Dorsal view. 5. Ventral view. Scale bar = 100 μm.

Figs 6–9. Proctophyllodes flexuosa sp. nov., male. 6. Leg I. 7. Leg II. 8. Leg III. 9. Leg IV. Scale bars = 50μm.