Atrichophyllodes delalandi, Hernandes & Valim & Mironov, 2007

Hernandes, Fábio A., Valim, Michel P. & Mironov, Sergey V., 2007, Two new genera and five new species of the feather mite subfamily Proctophyllodinae (Astigmata: Proctophyllodidae) from suboscine birds in Brazil, Journal of Natural History (J. Nat. Hist.) 41 (41 - 44), pp. 2653-2681 : 2662-2666

Atrichophyllodes delalandi gen. n., sp. n.

( Figures 15–23 )

Type material

Male holotype, seven male and eight female paratypes from the Southern Antpipit, Corythopis delalandi (Lesson, 1831) ( Passeriformes , Tyrannidae ), Guajuvira Farm, Fênix, Paraná State, Brazil (23 ° 539S, 51 ° 579W), 27 March 2003, coll. A. Bispo. Holotype and paratypes are deposited at DZSJRP, female and male paratypes are deposited at CAIOC and ZISP.

Description

Male holotype ( Figures 15–20 ) (range for seven paratypes indicated in parentheses). Length of idiosoma 253 (242–253), width 121 (121–138). Prodorsal shield: 78 (76–82) in length and 87 (84–90) in width, without lacunae or pale sclerotized areas. Posterior margin of prodorsal shield with two shallow concavities. Scapular setae se 103 in length (87–98) and separated by 54 (41–57); si separated by 38 (38–54). Setae c1 on hysteronotal shield; setae c2 and cp on humeral shield; setae c3 lanceolate, 16 in length and 3 in width (15–17×3). Distance between prodorsal and hysteronotal shields 16 (14–18). Hysteronotal shield: 150 (141–152) in length and 79 (82–84) in width; anterior margin almost straight, surface without lacunae and pale sclerotized areas. Opisthosomal lobes poorly developed, as a pair of convexities between setae h3; supranal concavity well expressed, long; terminal lamellae short semicircular with radial striation, 14 in length (11–15). Setae h3 separated by 54 (50– 56). Length of setae: h3 68 (60–73), h2 139 (122–141), ps2 16 (16–22), ps3 11 (8). Distance between dorsal setae: si–c1 46 (45–48), c1–c2 33 (30–34), c1–d1 27 (26–30), d1– e1 60 (57–64); e1–h1 24 (24–29); e2–h1 18 (16–20), h1–f2 16 (15–18).

Epimerites I free, with slightly divergent posterior tips; epimerites II and III with narrow surface fields; rudimentary sclerites rEpIIa present. Bases of trochanters III almost completely flanked by sclerotized band extending from epimerites IIIa. Aedeagus extending to level of setae g, 27 in length (24–29); genital arch 38 in width (38–41) and 19 (16–22) in length. Genital acetabula situated on small ovate plates. Distance between ventral setae: 3a–4a 18 (18–19), 4a–g 38 (34–38), g–ps3 16 (16–19), ps3–ps3 8 (7–11). Adanal shields with truncate anterolateral extensions, inner angles close to each other anterior to anal opening. Setae ps3 off adanal shields ( Figure 16 ). Anal suckers 11 (11) in diameter, and distance between discs 22 (18–22). Tarsus IV 27 (24–27) in length, with paraxial cone-like extension bearing setae r; modified seta d on distal half of the segment ( Figure 20 ).

Female ( Figures 21–23 ) (measurements of eight paratypes). Length of idiosoma 380–396, width 143–160. Prodorsal shield: form as in male, 91–101 in length and 106–112 in width. Setae se 117–131 in length and separated by 63–75; pair si separated by 50–57. Setae c1 on hysteronotal shield; setae c2 and cp on humeral shields; setae c3 lanceolate, 16–19 in length and 3–5 in width. Distance between prodorsal and hysteronotal shields 8–22. Anterior hysteronotal shield: 188–196 in length and 98–106 in width, anterior margin straight, posterior margin with short median extension, surface without lacunae, but with two pairs of elongated pale sclerotized areas on anterior half ( Figure 22 ). Lobar region: 92–103 in length and 95–103 in width, lateral margins strongly convex; lobar shield split into three fragments: a pair of large sclerites covering opisthosomal lobes and a small oval sclerite situated between their anterior ends. Terminal cleft as a narrow inverted V, 65–73 in length. Supranal concavity absent. Setae h2 lanceolate in basal half and apical half filiform, 90–109 in length, 4–6 in width; setae h3 63–68 in length and separated by 31–44. Setae h1 inserted on striated tegument between the anterior hysteronotal and lobar shields. Setae h1 and f 2 in trapezoidal arrangement. Distance between dorsal setae: si–c1 50–60, c1–c2 33– 50, c1–d1 42–49, d1–e1 84–94, e1–h1 46–53, h1–f2 34–38, f2–h2 16–24.

Epimerites I free, posterior ends slightly divergent. Trochanters III almost completely flanked by sclerotized band extending from bases of epimerites IIIa. Epimerites IVa with large posterior extension. Epigynium horseshoe-shaped, 41–49 in length, 53–58 in width, tips extending to level of setae g. Setae ps2 and ps3 setiform, setae ps2 at mid-level of anal opening. Distance between ventral setae: 1a–3a 45–49, 3a–g 27–30, 4a–ps3 72–92, g–4a 56–69, ps2–ps3 16–19, ps2–ps2 38–46, ps3–ps3 18–22. Copulatory opening terminal. Spermatheca and spermaducts as in Figure 21 . Legs I and II as in the male; legs III and IV subequal, legs IV extending by ambulacral disc to the level of setae h2 ( Figures 22, 23 ).

Etymology

The specific epithet was directly taken from the specific name of the type host and is a noun in the genitive case.

Figures

Figures 15, 16. Atrichophyllodes delalandi gen. n., sp. n., male: dorsal (15) and ventral (16) views. ad, adanal shield; ap, acetabular plate.

Figures 17–21. Atrichophyllodes delalandi gen. n., sp. n. (17–20) Male legs I–IV, dorsal views. (21) Female spermatheca. pd, primary duct; sd, secondary ducts.

Figures 22, 23. Atrichophyllodes delalandi gen.n., sp.n.,female:dorsal(22)and ventral(23)views.co,copulatoryopening.