New feather mites of the subfamily Pterodectinae (Acariformes: Proctophyllodidae) from passerines (Aves: Passeriformes) from Chile and Cuba
Author
Mironov, Sergey
Author
González-Acuña, Daniel
text
Zootaxa
2011
2011-10-12
3057
1
48
journal article
46194
10.11646/zootaxa.3057.1.1
2b25e707-3767-4eae-ba81-dc7adaf5babb
1175-5326
203166
Amerodectes caribaeus
sp. n.
(
Figs. 11
,
12
,
13
A–E)
Type material.
Holotype
male (
ZISP
4613
),
4 male
and
10 female
paratypes
from
the Cuban Pewee
Contopus
caribaeus
(Linnaeus)
(
Tyrannidae
)
,
CUBA
:
Habana
,
23°6'52"N
82°23'1"W
,
9 October 2007
, coll.
D.A. González-Acuña.
Type depository.
Holotype
,
3 males
and
9 female
paratypes—ZISP, remaining paratypes—DGA.
Description.
MALE (
holotype
, range for
4 paratypes
in parentheses). Idiosoma, length × width, 352 (350–370) × 137 (130–145), length of hysterosoma 227 (220–240). Prodorsal shield: 110 (106–113) × 108 (105–115), lateral margins entire, posterior margin straight, antero-lateral extensions acute, surface without pattern; scapular setae
se
separated by 57 (55–58) (
Fig. 11
A). Setae
ve
present. Humeral shields absent. Setae
c2
and
cp
situated on soft tegument. Subhumeral setae
c3
lanceolate, 20 (20–24) × 7 (6–7.5). Hysteronotal shield: greatest length 232 (230– 250), width in anterior part 102 (100–105), anterior margin straight, entire surface without pattern. Distance between prodorsal and hysteronotal shields 12 (10–15). Opisthosomal lobes approximately as long as wide at base; posterior margin of lobes roughly rounded, with poorly expressed extensions at bases of setae
h2
. Terminal cleft shaped as a wide inverted U, 31 (30–35) long. Supranal concavity present, semicircular. Setae
f2
absent. Setae
h1
situated at level of supranal concavity, close to lateral margins of opisthosoma. Setae
h3
narrowly lanceolate, short, 22 (20–22) × 3 (3–3.5); setae
ps2
73 (70–80) long; setae
ps1
minute, about 10 long, situated near margin of terminal cleft, anterior to level of setae
ps2
. Distance between bases of dorsal setae:
c2:d2
93 (90–95),
d2:e2
88 (85–95),
e2:h3
44 (44–51),
d1:d2
35 (25–35),
e1:e2
33 (30–35),
h1:ps2
29 (27–31),
h2:h2
63 (60–67),
h3:h3
45 (45–50),
ps2:ps2
80 (77–82).
Epimerites I fused into a narrow V, fused part with a pair of acute lateral extensions, inner margin of epimerites II with short and acute extensions (
Fig. 11
B). Coxal fields I, II without extensive sclerotized areas. Rudimentary sclerites rEpIIa absent. Coxal fields II, III open. Coxal fields IV without sclerotized areas. Epimerites IVa absent. Genital arch of moderate size, 27 (25–28) × 42 (40–44); basal sclerite of genital apparatus with rounded posterior margin; aedeagus sword-shaped, 89 (85–90) long, extending to posterior margin of anal suckers; genital papillae not connected by bases. Genital and adanal shields absent. Anal suckers 11 (11–12) in diameter, corolla smooth. Opisthoventral shields narrow, occupying only lateral parts of opisthosoma; setae
ps3
situated much postero-lateral to level of anal suckers, near bases of setae
ps2
. Distance between ventral setae:
3b:3a
15 (12–15),
3a:4a
42 (40– 46),
4a:g
55 (52–57),
g:ps3
50 (50–55),
ps3:ps3
70 (65–70),
ps3:h3
12 (11–14).
FIGURE 11
.
Amerodectes caribaeus
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 13 (12–13) long, situated at midlevel of segment; genual setae
cG
I, II and
mG
I, II filiform (
Figs. 13
A, B). Setae
d
of tarsi II, III approximately half as long as corresponding setae
f
. Tarsus IV 33 (31–33) long, without apical process; seta
d
situated at midlevel of segment; solenidion φ of tibia IV extending to midlevel of ambulacral disc (
Fig. 13
C).
FEMALE (
9 paratypes
). Idiosoma, length × width, 500–540 × 175–190, length of hysterosoma 345–390. Prodorsal shield: general form and surface as in male except for posterior margin with blunt median extension, 130– 135 × 128–148, setae
se
separated by 70–85 (
Fig. 12
A). Setae
ve
present, minute. Humeral shields absent. Setae
c2
and
cp
situated on soft tegument. Setae
c3
lanceolate, 23–25 × 7–7.5. Distance between prodorsal and hysteronotal shields 22–28. Anterior and lobar parts of hysteronotal shield separated dorsally by narrow transverse band of soft tegument, but remain connected ventro-laterally (
Fig. 12
B). Anterior hysteronotal shield slightly enlarged anteriorly, anterior margin slightly concave, posterior margin convex, greatest length 265–295, width at anterior margin 112–133, surface without pattern. Length of lobar region 88–98, greatest width 95–100. Terminal cleft narrow, parallel-sided, extending slightly beyond level of setae
h2
, 60–70 long, 4–6 wide at level of lobar apices. Supranal concavity poorly distinct. Setae
h1
on lobar shield, close to anterior margins; setae
f2
absent. Setae
h2
spindle-like, 62–68 × 8–9. Setae
ps1
equidistant from outer and inner margins of opisthosomal lobes. Setae
h3
28–32 long, about 1/3 of terminal appendages. Distance between dorsal setae:
c2:d2
112–120,
d2:e2
122–150,
e2:h2
50–55,
h2:h3
52–55,
d1:d2
40–55,
e1:e2
42–46,
h1:h2
18–20,
h1:h1
40–42,
h2:h2
78–86.
FIGURE 12
.
Amerodectes caribaeus
sp. n.
, female.
A
—dorsal view,
B
—ventral view.
FIGURE 13
.
Amerodectes
species, details.
A–E
—
Amerodectes caribaeus
sp. n.
,
F–J
—
Amerodectes plumbeus
sp. n
.
A, B
— legs I–II of male,
C
—tibia and tarsus IV of male,
D
—femur and genu IV of female,
E
—spermatheca and spermaducts,
F, G
— legs I, II of male,
H
—tibia and tarsus IV of male,
I
—femur and genu IV of female,
J
—spermatheca and spermaducts.
Epimerites I fused into a V; fused part without lateral extensions; inner margin of epimerites II with short and acute extension. Lateral parts of coxal fields II with large sclerotized areas. Epimerites IVa absent. Translobar apodemes of opisthosomal lobes present, wide, not fused anterior to terminal cleft. Epigynum with short lateral extensions, greatest width 70–75; apodemes of eoviporus separated from epimerites IIIa. Pseudanal setae
ps2, ps3
filiform, setae
ps2
situated posterior to anal opening, on anterior margin of translobar apodemes (
Fig. 12
B); distance between setae:
ps2:ps2
47–57,
ps3:ps3
25–29,
ps2:ps3
40–55. Primary spermaduct with scarcely noticeable enlargement in proximal part; secondary spermaducts 15–20 long, nearly twice as long as enlargement of primary spermaduct (
Fig. 13
E).
Femora I, II with ventral crest, other segments without processes. Solenidion σ
1
of genu I 12–14 long, situated at midlevel of segment. Genual setae
cG
I, II and
mG
I, II filiform. Setae
d
of tarsi II–IV shorter than corresponding setae
f
. Genu IV dorsally inflated, with longitudinal dorsal crest in proximal half (
Fig. 13
D), genu III without dorsal crest.
Differential diagnosis.
Males of
Amerodectes caribaeus
sp. n.
are most similar to those of the previous species,
A. contopus
,
by the general shape of dorsal and opisthoventral shields and by having short and lanceolate setae
h3
whose length does not exceed the distance between their bases. Both sexes of
Amerodectes caribaeus
are easily distinguished from
A. contopus
and from all other known
Amerodectes
species by the absence of idiosomal setae
f2
. Additionally,
A. caribaeus
differs from
A. contopus
by the following features: in both sexes distinct lacunae on the prodorsal and hysteronotal shields are absent; in males, setae
h1
are situated close to the lateral margins of opisthosoma, and setae
ps3
are situated far posterior to the level of the anal suckers, almost at bases of setae
ps2
(
Fig. 11
B); in females, the apodemes of oviporus are separated from epimerites IIIa, setae
h3
are as long as 1/3 of terminal appendages, the posterior margin of anterior hysteronotal shield is convex, and setae
ps1
are situated equidistantly from margins of opisthosomal lobes (
Figs. 12
A, B). In both sexes of
A. contopus
, small lacunae are present in at least some parts of dorsal shields; in males, setae
h1
are equidistant from the midline and corresponding lateral margins of the opisthosoma, and setae
ps3
are situated at the level of the anal suckers; in females, the apodemes of oviporus are fused with epimerites IIIa, setae
h3
are at most 1/8th the length of terminal appendages, the posterior margin of anterior hysteronotal shield is concave, and setae
ps1
are situated on inner margins of opisthosomal lobes.
Etymology.
The specific epithet is taken from the specific name of the
type
host and is a noun in apposition.