New feather mites of the subfamily Pterodectinae (Acari: Astigmata: Proctophyllodidae) from passerines (Aves: Passeriformes) in Mato Grosso do Sul, Brazil
Author
Mironov, Sergey V.
Zoological Institute, Russian Academy of Sciences, Universitetskaya Quay 1, 199034 Saint Petersburg, Russia. E-mail: astigmata @ zin. ru Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Palackeho 1 - 3, 612 42 Brno, Czech Republic. E-mail: literaki @ vfu. cz Institute of Vertebrate Biology ASCR, v. v. i., Kvetna 8, 603 65 Brno, Czech Republic. E-mail: capek @ ivb. cz Corresponding author
Author
Literak, Ivan
Author
Čapek, Miroslav
text
Zootaxa
2008
2008-12-01
1947
1
38
journal article
11755334
Pterodectes tangarae
Mironov
sp. n.
(
Figs. 4–6
)
Type material.
Male
holotype
(
ZISP 4377
),
7 male
and
3 female
paratypes
ex
Tangara cayana
(Linnaeus, 1766) (Thraupidae)
,
Brazil
,
Mato Grosso do Sul
, Nova Andradina, 22° 15’ S, 53° 21’ W, 17 July, 2006,
I. Literak
and M. Č apek.
Holotype
,
3 male
and
1 female
paratypes
(
ZISP 4377 - 4381
) –
ZISP
, remaining
paratypes
– PaU.
Male
(
holotype
, measurements for
7 paratypes
in parenthesis). Idiosoma, length × width, 360 (360–375), 160 (150–165), length of hysterosoma 230–240. Prodorsal shield: 115 (115–120) × 118 (115–120), lateral margins entire, posterior margin slightly convex, antero-lateral extensions rounded, posterior 2/3 of surface with sparse, little pit-like lacunae; scapular setae
se
separated by 64 (55–65) (
Fig. 4A
). Setae
ve
present. Humeral shields narrow, situated laterally, separated from epimerites III. Setae
cp
situated on soft tegument, mesal from ventral margin of humeral shields. Setae
c2
situated on soft tegument, slightly anterior to humeral shields. Subhumeral setae
c3
lanceolate, 26 (25–28) × 7 (7–8). Hysteronotal shield: greatest length 236 (235– 245), width in anterior part 110 (105–115), anterior margin slightly concave, middle part of shield with sparse little pit-like lacunae. Distance between prodorsal and hysteronotal shields along midline 17 (13–20). Opisthosomal lobes approximately as long as wide at base; posterior ends of lobes roughly rounded, with short and blunt extensions bearing bases of setae
h2
and
h3
and usually forming two teeth on lobar apices. Terminal cleft as an inverted U with widely divergent branches, 51 (44–51) in length. Supranal concavity present. Setae
f2
situated anterior to bases of
ps2
. Setae
h1
situated at level of supranal concavity. Setae
h3
narrowly lanceolate, 42 (40–45) × 3.5 (3–4); setae
ps2
93 (85–95) long; setae
ps1
minute, filiform, 7 (6–7) long, situated on margins of terminal cleft, approximately at level of setae
ps2
. Distance between dorsal setae:
se:c2
70 (70–75),
c2:d2
90 ((85–95),
d2:e2
84 (80–90),
e2:h3
50 (45–55),
d1:d2
44 (40–45),
e1:
e2
26 (25– 35),
h1:ps2
24 (20–25),
h2:h2
66 (60–70),
h3:h3
50 (45–52),
ps2:ps2
78 (70–80).
Epimerites I fused into a V, fused part with short and acute lateral extensions (
Fig. 4 B
). Coxal fields I, II without extensive sclerotized areas; inner margin of epimerites II with short acute extension. Rudimentary sclerites rEpIIa absent. Coxal fields II, III open. Epimerites IVa absent. Genital arch of moderate size, 20 (18– 22) × 40 (40–42); basal sclerite of genital apparatus with concave posterior margin; aedeagus straight, sword- shaped, 82 (80–85) long, extending to anterior end of anal opening. Genital papillae at level of genital arch apex. Genital and adanal shields absent. Anal suckers 15 (14–15) in diameter, corolla smooth. Opisthoventral shields wide, occupy postero-lateral half of lobes; inner margins of these shields with tooth-like extension at level of setae
f2
and with setae
ps3
at midlevel of anal suckers. Distance between ventral setae:
3b:3a
10 (5– 11),
3a:4a
40 (35–42),
4a:g
38 (35–40),
g:ps3
60 (55–60),
ps3:ps3
65 (60–66),
ps3:h3
33 (30–38).
FIGURE 4.
Pterodectes tangarae
sp. n.
, male. A—dorsal view, B—ventral view.
Femora I, II with narrow ventral crests, other segments of legs I, II without processes. Solenidion σ
1
of genu I short, stick-like, 11 (10–12) long, situated at midlevel of segment; genual setae
cG
I, II,
mG
I, II seti- form (
Figs 5 A, B
). Solenidion σ
1
of genu III in distal part of segment. Setae
d
of tarsi II, III shorter than corresponding setae
f
. Tarsus IV 24 (22–25) long, with small apical claw-like process; seta
d
minute, stick-like, situated slightly closer to apex than base of segment; seta
e
button-like, situated at base of apical claw; solenidion ϕ of tibia IV extending to midlevel of ambulacral disc (
Fig. 4 D
).
FIGURE 5.
Pterodectes tangarae
sp. n.
, details. A—leg I of male, B—leg II of male, C—leg III of male, D—tarsus and tibia IV of male, E—femoragenu III of female, F—femoragenu IV of female, G—spermatheca and spermaducts.
Female
(
2 paratypes
). Idiosoma, length × width, 515–530 × 180–195, length of hysterosoma 355–370. Prodorsal shield: general form as in male, 130–135 × 135–145, setae
se
separated by 75–80 (
Fig. 6 A
). Setae
ve
present. Humeral shields narrow, separated from epimerites III. Setae
cp
situated on soft tegument near ventral margin of humeral shields. Setae
c2
situated near to anterior ends of humeral shields. Setae
c3
lanceolate, 28–32 × 7–9. Distance between prodorsal and hysteronotal shields 15–20. Anterior and lobar pieces of hysteronotal shield separated dorsally by narrow transverse band of soft tegument, but remain connected ventro-laterally (
Fig. 6 B
). Anterior hysteronotal shield: slightly enlarged in anterior part, anterior margin almost straight, greatest length 275–280, width at anterior margin 130–145, anterior half of shield with little pit-like lacunae, posterior half with circular lacunae about
5 in
diameter. Length of lobar region 95–105, greatest width 95–102, anterior part with circular lacunae. Lobar shield split into two halves by narrow median furrow. Terminal cleft as a narrow inverted V, 65–75 long, distance between lobar apices 22–30. Setae
h1
on lobar shield, distant from anterior margins; setae
h1
and
f
2
in trapezoid arrangement. Setae
h2
spindle-like, 45–55 × 7–9. Setae
ps1
near to inner margins of opisthosomal lobes. Setae
h3
20–28 long, about 1/6 of terminal appendages. Distance between dorsal setae:
se:c2
84–95,
c2:d2
110–115,
d2:e2
125–130,
e2:h2
60–70,
h2:h3
40–50,
d1:d2
35–50,
e1:
e2
30–45,
h1:h2
35–40,
h1:h1
25–30,
h2:h2
75–80,
h3:h3
40–50.
FIGURE 6.
Pterodectes tangarae
sp. n.
, female. A—dorsal view, B—ventral view.
Epimerites I fused into a V, fused par with acute posterior end and without lateral extension. Lateral parts of coxal fields I, II without extensive sclerotized areas (
Fig. 6 B
). Epimerites IVa absent. Translobar apodemes of opisthosomal lobes present, not fused to each other anterior to terminal cleft. Epigynum with short lateral extensions, greatest width 70–75. Pseudanal setae setiform, distance between setae:
ps2:ps2
50–58,
ps3:ps3
20–30,
ps2:ps3
20–28. Head of spermatheca as in
Fig. 5 G
; primary spermaduct with long but poorly expressed enlargement (about 30 long) in proximal part; secondary spermaducts slightly longer than enlargement of primary spermaduct, 30–35 long; copulatory opening ventral, slightly posterior to anus.
Legs I, II as in male. Solenidion σ
1
of genu I thin stick-like, 13–17 long; genual setae
cG
I, II
mG
I, II setiform. Setae
d
of tarsi II–IV shorter than corresponding setae
f
. Genu IV dorsally inflated, with wide longitudinal dorsal crest, genu III with low longitudinal dorsal crest (
Figs. 6 E, F
).
Differential diagnosis.
Like
P. paroariae
sp. n.
,
P. tangarae
sp. n.
is most similar to
P. atyeoi
by having extensive ventral sclerotization of opisthosomal lobes and narrowly lanceolate setae
h
3
in males (
Fig. 4 B
) and differs from the latter species by the characters as follows. In males of
P. tangarae
, little pit-like lacunae occupy the central part of hysteronotal shield, the anterior margin of the hysteronotal shield is slightly concave, and epimerites IVa are absent; in females, the humeral shields are present, the anterior hysteronotal and lobar shields are connected ventro-laterally (
Fig. 6 B
). In males of
P. ateyoi
, little pit-like lacunae of hysteronotal shield are generally present in its posterior third, the anterior margin of hysteronotal shield is straight, epimerites IVa are large and their inner ends touch the tips of genital arch; in females, the humeral shields are absent, anterior and lobar hysteronotal shields are completely separated.
Etymology.
The specific epithet derives from the generic name of the host and is a noun in the genitive case.