Two new species of scale mites (Acari: Pterygosomatidae) parasitizing Agama agama (Sauria: Agamidae) from Kenya
Author
Fajfer, Monika
text
Zootaxa
2013
2013-12-04
3745
2
257
262
journal article
4776
10.11646/zootaxa.3745.2.5
3643aa8b-8e5a-429e-b9d1-5075f3398e57
1175-5326
5271214
37286260-96AB-442A-B623-530BBC2C5B0C
Pterygosoma fragilis
sp.
nov.
(
Figs. 3–5
)
Description.
FEMALE (
holotype
,
Figs. 3–5
).
Gnatosoma
displaced to ventral side of idiosoma. Cheliceral base 60 (
55–60 in
2 paratypes
) long, cheliceral shaft 125 (125) long. Fixed cheliceral digit 15 long, with spinous process. Movable cheliceral digit with basal spur. Palpal femur and genu with smooth setae, 55 and 60 long, respectively. Palpal tibia with 3 smooth setae and short claw; palpal tarsi with 4 smooth setae (
Fig. 5A
). Subcapitulum without setae
n
. Free lateral part of peritremal branch about 40 long. Hypostome 165 long, with several minute denticles at apex.
Idiosoma
430 long (415–450) and 1005 wide (1020–1065). Dorsum (
Fig. 3
) with 3 groups of serrated setae: 57–65 pairs of antero-lateral setae, 25–45 long; 1 pair of longer postero-lateral setae, 120–145 long, and 2 pairs of dorso-median setae
dm1–dm2
40 and 35 long, respectively. Peripheral series represented by 6–7 pairs of slightly apically expanded setae, 265–335 long; 3 pairs located medially, 3–4 pairs laterally. Eyes absent. Venter (
Fig. 4
) with 3 pairs of ventro-median setae:
vm1
filiform,
vm2–vm3
serrated. Genital slit situated dorsally. Genital series represented by 1 pair of spin-like setae
g1
45 long and 1 pair of minute setae
g2
, 15 long (in
paratypes
setae
g2
absent). Pseudoanal setal series represented by 4 pairs of paddle-shaped setae, 110–140 long, with minute spicules on apical margin.
Legs.
Coxal setation:
1a
,
1b
,
2b
,
3a
,
3b
arranged in formula 2–1–2–0, all setae filiform; setae of trochanters I–IV (1–1–1–1), femora I–IV (3–1–1–1), genua I–IV (2–0–0–1), tibiae I–IV(5–3–3–3). All setae on each prodomer filiform, except for slightly serrated setae
l’FII–FIV.
Setation of tarsi: I 13 setae (
ft
,
tc’
,
tc”
,
p’
,
p”
,
a’
,
a”
,
it’
,
it”
,
u’
,
u”
,
vs’
,
vs”
) and solenidion
ω1
; II 8 setae (
tc’
,
p’
,
p”
,
it’
,
it”
,
u’
,
u”
,
vs’
) and
ω1
; III and IV with 8 setae each (
tc’
,
p’
,
p”
,
it’
,
it”
,
u’
,
u”
,
vs’
). Setae
tc’
,
tc”
,
a’
,
a”
of leg I represented by euphatidia,
p’
and
p”
fanlike. Setae
tc’
of legs II–IV, setae
it’
,
it”
,
u’
,
u”
of legs I–IV and setae
vs’
of legs I–II smooth, setae
vs’
of legs III– IV slightly serrated.
Type material.
Female
holotype
and
1 female
paratype
from
Agama agama
(Linnaeus)
(
ZMUC
R3669
) [lateral surface],
KENYA
:
Garissa County
,
Bura
Tana
,
20–24 October 1947
, coll.
Ahlefeldt
and
Jacobsen
;
1 female
paratype
from same host (
ZMUC
–3667) [ventral surface] and location. Mites were removed by
M. Fajfer
.
Type deposition.
Holotype
in
ZMUC
,
1 female
paratype
in
AMU
,
1 female
paratype
in
ZISP
.
Etymology.
The specific epithet “fragilis” refers to the Latin word “
fragilis
” which means “frail, delicate”.
Differential diagnosis.
P. fragilis
sp. nov.
is similar to
P. garissi
sp. nov.
In females of both species, the setation pattern of the idiosoma is very similar, the anterior mid-dorsal setae are serrated, setae
dG
are longer than
dF
, four pairs of paddle-shaped setae
ps
are present, setation of tarsi-coxae I–IV is the same. This new species differs from
P. garrisi
by the following features. In females of
P. fragilis
the hypostom has several minute denticles at the apex, the fixed cheliceral digit has a spinous tip, subcapitular setae
n
are absent, the cheliceral shaft is 2.1 times longer than the base, 8–9 pairs of the peripheral setae are present, the genital series is represented by 1–2 pairs of setae
g
. In females of
P. garissi
the hypostom is smooth, the fixed cheliceral digit has several tines, subcapitualar setae
n
are present, the cheliceral shaft is 1.7 times longer than the base, 6–7 pairs of the peripheral setae and three pairs of genital setae
g
are present.