First record of the family Cunaxidae (Acari: Trombidiformes) from Syria with description of a new species
Author
Barbar, Z.
text
Acarologia
2015
2015-12-18
55
4
459
465
http://dx.doi.org/10.1051/acarologia/20152185
journal article
10.1051/acarologia/20152185
2107-7207
5402877
Cunaxa celineae
n. sp.
Female (n=1) (
Figures 1-3
)
Gnathosoma — (
Figure 1
). Palps consist of five segments (
Figure 1a
). Surfaces of trochanter, basifemur, telofemur, and in particular genu covered by denticles. Palpal chaetotaxy from trochanter to tibiotarsus: 0-1-1-3-5. Dorsolateral setae on the basi- and telofemora simple. Stout spine-like setae on the genua and tibiotarsi present. Apophysis of telofemur cone-like with slightly pointed apex and closer to the central part of the segment (
Figure 1a
). Proximal segment of chelicerae papillate, second segment has some denticles proximodorsolaterally and followed distally by some "furrow-like" lines in different lengths (
Figure 1b
). Chelicera terminating in a claw-like digit and with one simple seta (
Figure 1b
). The ventral surface of the hypognathum bears four pairs of simple hypognathal setae (
hg1-4
) and two pairs of adoral setae. Hypognathum with few random papillae and short transverse lines at its base (
Figure 1c
).
FIGURE 2:
Cunaxa celineae
sp. nov.
, female idiosoma. Dorsum (
a
); venter (
b
).
FIGURE 3:
Cunaxa celineae
sp. nov.
, female. Basifemur, telofemur, genu, tibia and tarsus of: leg I (
a
), leg II (
b
); leg III (
c
) and leg IV (
d
).
Idiosomal dorsum — (
Figure 2a
). Propodosomal plate with two pairs of sensillae (
vi
,
sce
) and one pair of simple setae (
sci
). Setae
ve
absent. Propodosomal plate generally smooth except for the presence of an oval area of thin broken striae around setae
sci
. Length of
sce
about 1.4 times longer than
vi
. Six pairs of hysterosomal setae (
c1
,
c2
,
d1
,
e1
,
f1
,
h1
) situated on small platelets. Setae
f1
and
h1
longer than other setae. A transverse regular striae pattern occurs between setae
c1
and
d1
, widely spaced between setae
d1-e1
,
e1-f1
and
f1-h1
. Thin striae in form of broken lines in the central regions between setae
e1-f1
and between setae
f1-h1
. Cupule
im
present posteriolateral to
e1
. Setae
h2
occur ventrally.
Idiosomal venter — (
Figure 2b
). Idiosomal venter with one pair of propodogastral, four pairs of hysterogastral, four pairs of subequal in length genital setae (
g1-4
) and a pair of anal setae. Genital valves with longitudinal striae. Cupule
ih
present.
Legs — (
Figure 3
). Leg chaetotaxy: coxae I-IV, 3-1-3-2
sts
; trochanters I-IV, 1-1-2-1
sts
; basifemora I-IV, 4-4-3-0
sts
; telofemora I-IV, 4
sts
-4
sts
-1
asl
, 3
sts
-1
asl
, 3
sts
; genua I-IV, {1
asl
, 1
asl
},{1
asl
, 1
sts
}, 1
asl
, 4
sts
-2
asl
, 5
sts
-1
asl
, 5
sts
-1
asl
, 5
sts
; tibiae I-IV, {1
asl
, 1
sts
}, 1
asl
, 4
sts
-1
asl
, 5
sts
-1
bsl
, 5
sts
-1
T
, 1
bbsl
, 4
sts
; tarsi I-IV, 3
asl
,{1
asl
, 1
fam
, 1
sts
}, 1
dtsl
, 2
tsl
, 18
sts
-1
bsl
, 1
dtsl
, 1
tsl
, 21
sts
-1
tsl
, 21
sts
-18
sts
. Surfaces of trochanters and basifemora I-IV with transverse broken striae. Remaining leg segments with papillae which on dorsal side are larger and fewer than on ventral side.
Measurements — Length of idiosoma 540; width 365. Length of hypognathum 168; width 100. Length of palps 225. Chelicerae 153. Legs: I 342; II 330; III 370; IV 380. Length of setae:
hg1
15;
hg2
20;
hg3
20;
hg4
30;
vi
195;
sce
265;
sci
22;
c1
20;
c2
17;
d1
20;
e1
16
;
f1
38;
h1
38;
h2
12;
g1-4
12. Distance between setae
sci -sci
46.
Male and immature — unknown.
Differential diagnosis — This new species closely resembles
C. anomala
Khaustov and Kuznetzov (1998)
by the absence of setae
ve
, but differs from the latter species by possessing the following combination of characters: (1) the presence of a very short bulbous solenidion
bbsl
anterior to the trichobothrium on tibiae IV (absence of this seta in
C. anomala
); (2) proximal segment of chelicerae papillate, second segment has some denticles proximally and dorsolaterally and followed distally by some "furrow-like" lines in different lengths (only the proximal segment is papillate in
C. anomala
) (3) hypognathum with short transverse lines at its base (smooth in
C. anomala
) (4) the presence of an oval area of thin broken striae around setae
sci
(absence of this area on dorsal propodosomal in
C. anomala
) and (5) idiosomal length of
C. celineae
is 540 µm and about 1.5 times longer than that in
C. anomala
(363 µm).
Etymology — The name of the species refers to the first name of author’s daughter, Celine Barbar, to whom this species is dedicated.
Type material —
Female
holotype
,
Syria
,
Latakia Governorate
,
Al-Bahlouliyah
,
on
M. sylvestris
,
01 July 2012
. (
Coll. Barbar, Z.
)
.