Seven new species of Phyllocoptes Nalepa from Tibet Autonomous Region, China (Acari: Eriophyidae: Phyllocoptinae)
Author
Song, Zi-Wei
Author
Xue, Xiao-Feng
Author
Hong, Xiao-Yue
text
Zootaxa
2009
2313
35
60
journal article
10.5281/zenodo.191930
f9f426fe-5be4-4cb5-85b8-e401637c6fc5
1175-5326
191930
Phyllocoptes graminis
sp. nov.
(
Figs 11
&
12
)
Description.
FEMALE: (n = 19) Body fusiform, 232 (225–235), 68 (62–70) wide, 70 (65–70) thick; light yellow. Gnathosoma 23 (23–25), projecting obliquely down, pedipalp coxal seta (
ep
) 5 (4–5), dorsal pedipalp genual seta (
d
) 8 (7–8), cheliceral stylets 20 (20–22).
Prodorsal shield
triangular, 47 (45–47), 60 (56–60) wide; prodorsal shield with round and broad frontal lobe; shield design with median line absent, admedian and submedian lines complete and sinuous, short dashes present all over the shield. Scapular tubercles ahead of shield rear margin, 22 (19–22) apart, scapular setae (
sc
) 6 (5–6) projecting centrad.
Coxal plates
with short lines and granules; anterolateral setae on coxisternum
I
(
1b
) 10 (9–10), 15 (13–15) apart, proximal setae on coxisternum
I
(
1a
) 18 (18–20), 7 (7–8) apart, proximal setae on coxisternum
II
(
2a
) 40 (38–40), 25 (25–26) apart. Prosternal apodeme absent.
Legs
with usual series of setae. Leg
I
42
(40–42), femur 11 (10–11), basiventral femoral seta (
bv
) 12 (10–12); genu 5 (5–6), antaxial genual seta (
l
ʺ) 25 (23–25); tibia 7 (7–8), paraxial tibial seta (
l
ʹ) 6 (5–6), located 1/3 from dorsal base; tarsus 7 (6–7); seta
ft
ʹ 15 (15–17), seta
ft
ʺ 17 (17– 20), paraxial unguinal tarsal seta (
u
ʹ) 4 (3–4); tarsal empodium 7 (7–8), simple, 7-rayed, tarsal solenidion rodlike. Leg
II
38
(36–38), femur 10 (10–11), basiventral femoral seta (
bv
) 10 (9–10); genu 5 (4–5), antaxial genual seta (
l
ʺ) 12 (11–12); tibia 5 (5–6); tarsus 7 (6–7); seta
ft
ʹ 5 (5–6), seta
ft
ʺ 16 (15–18), paraxial unguinal tarsal seta (
u
ʹ) 4 (3–4); tarsal empodium 7 (7–8), simple, 7-rayed, tarsal solenidion rod-like.
Opisthosoma
dorsally with 78 (70–80) annuli, smooth; ventrally with 82 (80–85) annuli, with round microtubercles. Setae
c2
33 (30–35) on ventral annulus 12 (12–14); setae
d
50 (45–52) on ventral annulus 27 (27–30), 32 (31–32) apart; setae
e
30 (30–35) on ventral annulus 52 (52–54), 13 (13–14) apart; setae
f
30 (30–32) on 7th ventral annulus from rear, 25 (22–25) apart. Setae
h1
4 (3–4), setae
h2
55 (55–60).
Female genital coverflap
14 (13– 14), 20 (19–20) wide, with 8–10 longitudinal ridges, setae
3a
25 (22–25), 16 (16–17) apart.
MALE: Unknown.
Type
material.
Holotype
, female (slide marked NJAUAcariEri936
holotype
), from
Berberis graminea
Ahrendt (Berberidaceae)
, Bayi Town, Nyingchi (Linzhi) Prefecture, Tibet Autonomous Region, P. R.
China
,
15 August
, 2007, coll. Zi-Wei Song, Xiao-Feng Xue & Zhen Wang.
Paratypes
,
18 females
(slides marked NJAUAcariEri936) with the same data as
holotype
.
Relation to host.
Vagrant on leaf undersurface. No damage to the host was observed.
Etymology.
The specific designation
graminis
is from the host species name “
graminea
”.
Differential diagnosis.
This species is similar to
P. granulatus
(
Nalepa, 1897
)
, but can be differentiated by the prodorsal shield design without median line, short lines present all over the shield (prodorsal shield design with incomplete median line, granules all over the shield in
P. granulatus
); coxal plates with short lines and granules, prosternal apodeme absent (coxal plates smooth, prosternal apodeme present in
P. granulatus
); empodium 7-rayed (empodium 5-rayed in
P. granulatus
).