The stigmaeid mites (Acari: Stigmaeidae) of Kelkit Valley (Turkey)
Author
Dönel, Güldem
Author
Doğan, Salih
text
Zootaxa
2011
2942
1
56
journal article
46470
10.5281/zenodo.201260
0eb19db3-fa04-4020-a586-e7105a276df9
1175-5326
201260
Eustigmaeus varius
sp. nov.
Holotype
. Female
(Figure 8). Length of body 290 (275–308), width 188 (178–206).
Dorsum.
Dorsal shields covered with oval dimples. Propodosomal shield with four pairs of setae (
vi
,
ve
,
sce
,
sci
) and a pair of eyes. Hysterosomal shield with six pairs of setae (
c
1,
d
1,
d
2,
e
1,
e
2,
f
1). Suranal shield tucked under body, with two pairs of setae (
h
1,2). Fossettes on dorsal shields as illustrated. Dorsal body setae short, stick-shaped, with numerous spinules and hyaline sheath. Setae
e
1 and
f
1 cracked distally. Shapes of setae c1 and
d
1 varies, these setae not cracked distally in many specimens, but in
holotype
and only one
paratype
cracked distally. Dimensions of setae as follows:
vi
40
(37–40);
ve
30 (27–33);
sci
40 (37–43);
sce
38 (35–40);
c
1 43 (40–45);
c
2 38 (35–40);
d
1 32 (30–35);
d
2 38 (35–40);
e
1 38 (36–42);
e
2 40 (38–43);
f
1 45 (40–48);
h
1 40 (38–40);
h
2 25 (20–25). Distances between setae:
vi-vi
25 (20–25);
ve-ve
70 (65–73);
vi-ve
38 (35–40);
sci-sci
133 (130–135);
ve-sci
40 (35–42)
scesce
160 (156–165);
sci-sce
35 (30–40);
c
1
-c
1 73 (67–75);
c
1
-d
1 65 (60–70);
c
1
-d
2 65 (62–70);
d
1
-d
1 85 (83–88);
d
2
-d
2 172 (165–175);
d
1
-d
2 55 (50–56);
e
2
-e
2 150 (145–155);
d
1
-e
1 63 (62–65);
e
1
-e
1 73 (70–74);
e
1
-e
2 40 (35–42);
f
1
-f
1 68 (65–70);
e
1
-f
1 38 (36–38);
h
1
-h
1 36 (32–38);
h
2
-h
2 50 (45–52);
h
1
-h
2 20 (18–20).
Venter
. Humeral shields situated ventro-laterally between coxae II–III, similar pattern as dorsal shields, bearing setae
c
2. Humeral region without callosities. Coxisternal shields completely divided, bearing three pairs of setae (
1a
,
3a
,
4a
). Aggenital shield with two pairs of setae (
ag
1,2) and anogenital covers bearing three pairs of setae (
ps
1- 3). Dimensions of setae as follows:
ag
1 10 (8–10);
ag
2 13 (10–15);
ps
1 10 (8–10);
ps
2 13 (10–15);
ps
3 20 (18–23).
Legs
. Leg I 168 (160–172), leg II 100 (94–112), leg III 113 (110–124), leg IV 153 (150–168). Chaetotaxy of leg segments as follows: coxae 2–2–2–2, trochanters 1–1–2–1, femora 6–5–3–2, genua 4(κ)–4(κ)–1–1, tibiae 7(ϕ,ϕρ)–6(ϕρ)–6(ϕρ)–6(ϕρ), tarsi 14(ω)–10(ω)–8(ω)–7. Genua I and II with solenidion κ. All tarsi with solenidion ω.
Gnathosoma
.
Chelicera 113 (108–118), palp 100 (98–115). Subcapitulum with two pairs of adoral setae (
ro
1,2) distally and two pairs of subcapitular setae (
m
,
n
) proximally. Dimension of setae:
m
10 (8–15);
n
15 (10–18); distances between setae:
m-m
13 (10–20);
n-n
20 (18–25);
m-n
13 (10–15).
Deutonymph Female
(
Figure 9
). Length of body 275, width 160.
FIGURE 8.
Eustigmaeus varius
sp. nov.
female—A, dorsal view of idiosoma; B, ventral view of idiosoma; C, setae
c
1,
d
1,
e
1,
e
2,
f
1; D, leg I; E, leg II; F, leg III; G, leg IV.
Dorsum.
Dorsal shields covered with oval dimples as in female. Propodosomal shield with three pairs of setae. Eyes located between setae
ve
and
sci
. Setae
sce
located on auxiliary shields. Central shield with two pairs of setae (
c
1 and
d
1). Seta
e
1 placed on median zonal shield, entire. Setae
d
2 located on marginal shields and setae
e
2 located on lateral zonal shields. Intercalary shield divided, with setae
f
1. Suranal shield entire, with two pairs of setae (
h
1,2). Dorsal body setae as in female. Dimensions of setae as follows:
vi
33
;
ve
30;
sci
30;
sce
32;
c
1 35;
c
2 25;
d
1 28;
d
2 28;
e
1 33;
e
2 30;
f
1 35;
h
1 30;
h
2 18. Distances between setae:
vi-vi
15;
ve-ve
60;
vi-ve
20;
sci-sci
112;
ve-sci
30;
c
1
-c
1 55;
c
1
-d
1 50;
d
1
-d
1 62;
e
1
-e
1 53;
h
1
-h
1 25;
h
2
-h
2 48;
h
1
-h
2 15.
Venter
. Humeral shields placed on lateral of body, with setae
c
2. Coxisternal shields completely separated, bearing three pairs of setae (
1a
,
3a
and
4a
). Aggenital shield with one pair of setae (
ag
1) and anogenital covers bearing three pairs of setae (
ps
1-3).
Legs
. Leg I 140, leg
II 84
, leg III 100, leg IV 130. Chaetotaxy of leg segments as follows: coxae 2–2–2–2, trochanters 1–1–2–0, femora 6–5–3–2, genua 4(κ)–4(κ)–0–0, tibiae 7(ϕ,ϕρ)–6(ϕρ)–6(ϕρ)–6(ϕρ), tarsi 12(ω)–8(ω)– 7(ω)–6.
Gnathosoma
.
Chelicera 60, palp 80. The number of subcapitular setae as in female. Dimension of setae:
m
8;
n
10; distances between setae:
m-m
15;
n-n
18;
m-n
15.
FIGURE 9.
Eustigmaeus varius
sp. nov.
deutonymph female—A, dorsal view of idiosoma; B, ventral view of idiosoma; C, leg I; D, leg II; E, leg III; F, leg IV.
Male
and other immature stages.
Unknown.
Etymology.
The name of this new species,
varius
, refers to the variation in the shapes of dorsal body setae
c
1 and
d
1.
Type
materials.
Holotype
Ƥ, 2 ƤƤ
paratypes
and 1 deutonymph Ƥ
paratype
from decayed bark of
Pinus
sp.,
40°18'27'' N
,
37°35'01'' E
,
996 m
, Reşadiye,
11 V 2008
;
ZMAU
.
Remarks.
This new species is similar to
Eustigmaeus variolatus
Barilo,
1987
in the number of aggenital setae, absence of humeral callosities, shape of dorsal body setae and dorsal ornamentation. However, it can be distinguished from the latter by the dorsal body setae with hyaline sheaths, setae
e
1 and
f
1 cracked distally and setae
ve
the shortest of the dorsal body setae.