New taxa of the subfamily Picobiinae (Cheyletoidea: Syringophilidae) parasitizing antbirds and gnateaters (Passeriformes: Thamnophilidae, Conopophagidae) in Guyana
Author
Glowska, Eliza
Author
Schmidt, Brian K.
text
Zootaxa
2014
3861
2
193
200
journal article
42522
10.11646/zootaxa.3861.2.7
2860a7cd-a217-47be-8094-25d6573fe0d8
1175-5326
227931
EBC2031A-D465-4C96-A2BC-12A413EEDF96
Rafapicobia thamnophili
sp. nov.
(
Figs. 6–10
)
PHYSOGASTRIC FEMALE. Total body length 535 (
555–565 in
two
paratypes
).
Gnathosoma
.
Hypostomal apex tapering, sharp-ended (
Fig. 8
). Infracapitulum punctate. Borders between chambers both in medial and lateral branches of peritremes invisible (
Fig. 9
). Stylophore 130 (120–125) long, apunctate.
Idiosoma
.
Propodonotal shield divided into three sclerites, 2 narrow lateral, bearing bases of setae
si
and
se
, punctate along outer edge and unpaired central shield bearing bases of setae
vi
,
ve
and
c1
, punctate on whole surface. Lateral sclerites fused with central part unilaterally or bilaterally in some specimens. Setae
vi
bases situated anterior to
ve
. Length ratio of
vi
:
ve
:
si
1:2–3:2.6-3. Bases of setae
se
and
c1
situated at same transverse level. Two hysteronotal shields restricted to small punctate areas bearing bases of setae
d1
. Setae
d1
bases situated closer to
e2
than
d2
. Length ratio of setae
d2
:
d1
:
e2
0.9
–1.5:1:1–1.5. Pygidial shield strongly sclerotized, densely punctate, bearing bases of setae
f1
and
f2
. Length ratio of setae
f1
:
f2
1:3–5,
h1
:
h2
1:3.9–4.5,
f1
:
h1
1:2–3.5,
f2
:
h2
1:2.7–4.3. Agenital plates punctate, bearing bases of setae
ag1
. Length ratio of setae
ag2
:
g
1:1–2. Two pairs of subequal in length pseudanal setae present. Length ratio setae
ag1
:
ag2
:
ag3
10:1:10. Most of dorsal setae knobbed.
Legs.
All coxal fields strongly sclerotized, apunctate. Apodemes I with small thorn-like protuberances. Setae
3c
1.6–2.8 times longer than
3b
. Antaxial and paraxial members of claws pairs III–IV subequal in size and shape. Setae
tc’
and
tc’’
of legs III–IV subequal in length.
Lengths of setae:
vi
35 (35–40),
ve
95 (75–80),
si
100 (95–110),
c2
155 (125–135),
se
150 (120–140),
c1
185 (170–195),
d2
130 (130–145),
d1
145 (105–135),
e2
150 (130–165),
f1
20 (20–35),
f2
95 (70–85),
h1
70 (65),
h2
275 (295–300),
ag1
155 (140–145),
ag2
15 (15–20),
ag3
150 (150–155),
g
20 (15–30),
ps1
and
ps2
10,
l’RIII
20 (20–25),
l’RIV
20 (10–20),
3b
20 (30–40),
3c
55 (65–75),
4b
35–45,
4c
80 (70).
FIGURES 6–10.
Rafapicobia thamnophili
sp. nov.
,
6—dorsal view, 7—ventral view, 8—hypostomal apex, 9—peritremes, 10—propodonotal setae
ve
. Scale bars: 6, 7 = 100 µm; 8–10 = 50 µm.
MALE. Unknown.
Etymology.
The specific epithet
thamnophili
derives from the generic name of the
type
host.
Type
material.
Female
holotype
(physogastric form) and
4 female
paratypes
(2 physogastric and 2 nonphysogastric forms) from quills of body feathers of
Thamnophilus insignis
Salvin et Godman
(
USNM
639376) (
Passeriformes
:
Thamnophilidae
),
GUYANA
: Cuyuni- Mazaruni, Paruima, ca.
19 km
N, at Mt. Holitipu,
25 February 2007
, coll. B.K. Schmidt.
Non-type material.
From
Thamnophilidae
in
GUYANA
:
4 females
(non-physogastric forms) from
Myrmoborus leucophrys
(Tschudi)
(
USNM
637174), Upper Takutu–Upper
Essequibo
, Lower Rewa River,
23 August 2006
, coll. C.M. Milensky;
2 females
(1 physogastric and 1 non-physogastric) from
Myrmeciza ferruginea
(St. Müller)
(
USNM
637194), Upper Takutu - Upper
Essequibo
, Upper Rewa River,
9 August 2006
, coll. B.K. Schmidt;
12 females
(10 physogastric and 2 non-physogastric) from
Myrmotherula longipennis
Pelzeln
(
USNM
), Upper Takutu–Upper
Essequibo
, Lower Rewa River,
19 August 2006
, coll. C.M. Milensky; 6 (5 physogastric and 1 non-physogastric) females from
Hypocnemis cantator
(Boddaert)
, Upper Takutu–Upper
Essequibo
, Lower Rewa River,
23 August 2006
, coll. C.M. Milensky.
Material deposition.
Holotype
female and
2 female
paratypes
are deposited in
USNM
,
2 female
paratypes
in AMU. Additional material,
2 females
from
Myrmoborus leucophrys
,
1 female
from
Myrmeciza ferruginea
,
6 females
from
Myrmotherula longipennis
and
3 females
from
Hypocnemis cantator
are deposited in
USNM
,
2 females
from
Myrmoborus leucophrys
,
1 female
from
Myrmeciza ferruginea
,
6 females
from
Myrmotherula longipennis
and
3 females
from
Hypocnemis cantator
are deposited in AMU.
Differential diagnosis.
This new species is most similar morphologically to
Rafapicobia dendrocolaptesi
Skoracki and Solarczyk, 2012
described from
Dendrocolaptes platyrostris
Spix
from
Paraguay
and
D. picumnus
Lichtenstein
from
Argentina
(
Skoracki and Solarczyk 2012
). In females of both species, the hysteronotal shields are present and restricted to small punctate areas bearing bases of setae
d1
, setae
ag2
are short (
10–15 and
15–20
in
R. dendrocolaptesi
and
R. thamnophili
sp. nov.
, respectively), most of dorsal setae are beaded, all shields are punctate and antaxial and paraxial members of claws pairs III–IV are subequal. Females of
R. thamnophili
sp. nov.
differ from
R. dendrocolaptesi
by the propodonotal shield generally divided into three parts, two narrow lateral sclerites bearing bases of setae
si
and
se
, punctate along the outer edge and the central shield bearing bases of setae
vi
,
ve
and
c1
(in some specimens lateral sclerites are fused with the central part unilaterally or bilaterally) and lengths of setae
ve
75–95,
d2
130–145 and
h1
65–70. In females of
R. dendrocolaptesi
the propodonotal shield is entire and lengths of setae are
ve
45–60,
d2
165–190 and
h1
10.