New species and records of ptyctimous mites (Acari, Oribatida) from the Philippines
Author
Niedbała, Wojciech
Author
Ermilov, Sergey G.
text
Zootaxa
2017
4231
1
119
128
journal article
37076
10.11646/zootaxa.4231.1.9
b7ff176e-315c-45b8-8e5f-9281c6dd5d86
1175-5326
311822
892F109E-668B-49DE-8436-9E8139350733
Plonaphacarus leonilae
Niedbała
sp. nov.
(
Fig. 2
, A–F)
Description.
Measurements
of
holotype
. Species of medium size. Prodorsum: length 215, width 147, height 81; setae:
ss
33,
in
121,
le
38,
ro
58,
ex
13; notogaster: length 374, width 268, height 247; setae:
c
1 126,
c
1/
c
1–
d
1=1.3,
c
2 96,
c
3 and
cp
109,
d
2 81,
h
1 and
ps
1 132,
h
2 76,
h
3 81,
ps
2 119,
ps
3 and
ps
4 63; genito-aggenital plate 89 × 68; anoadanal plate 129 × 66.
Integument
. Colour light brown. Integumental surface of prodorsum and ventral plates punctate. Surface of notogaster covered with deep, separated foveoles.
Prodorsum
with distinct sigillar fields, laterals longer than median; weak traces of lateral carinae visible, exceeding the sinus; margin of rostrum covered with ornamentation of shallow alveoles. Sensilli rather long, with narrow pedicel and dilated head covered with small spines. Interlamellar setae long erect, rigid, attenuate, covered with small spines in distal half, lamellar and rostral setae spiniform, rough but rostral setae considerably longer. Relation of lengths:
in>ro
>
le>ss
>
ex
.
Notogaster
with 15 pairs of rigid, rough, attenuate setae, different in length, the longest are
h
1 and
ps
1, the shortest are
ps
3 and
ps
4, setae
c
1 longer than distance between
c
1–
d
1. Setae
c
1 and
c
2 situated near anterior margin, setae
c
3 far from margin. Vestigial setae
f
1 situated slightly anteriorly of
h
1 setae. Two pairs of lyrifissures
ia
and
im
present.
Ventral region
. Seta
h
of subcapitular mentum vestigial. Formula of genital setae: 6(4+2): 3. Ano-adanal plates with rough setae
ad
1 and
ad
2 the longest, anal setae fine and the shortest.
Legs
setation complete; setae
d
of femora I remote from distal end of article.
Material examined.
Holotype
:
Philippines
,
Samar
Island
,
Western
Samar
Province
: 5584—
Sitio Napatuo
,
Barangay Osmeña
,
Dolores Municipality
,
21.X.2003
(
W.Sm. Gruèzo
), from sample of secondary forest litter.
Etymology.
The specific name is dedicated to our friend and colleague, acarologist Dr. Leonila Corpuz-Raros (Crop Protection Cluster, College of Agriculture and Museum of Natural History, University of the
Philippines
Los Baños, Los Baños,
Philippines
).
Comparison.
The new species is easy distinguishable from congeners by the presence of foveolate margin of rostrum, the deep foveoles distributed on the surface of notogaster, long rostral setae and heterotrichy of notogastral setae. The most similar oriental species are
Plonaphacarus insignitus
Niedbała, 1989
from
Vietnam
and
P. loebli
(
Mahunka, 1985
)
from
India
. However,
P. insignitus
has a median prodorsal crista, posterior furrows and laterals sigillar fields that are longer than the median ones, a different shape of sensilli, shorter lamellar and rostral setae on the prodorsum, setae
h
of subcapitular mentum well developed and setae
d
of femora I located at distal end of article;
P. loebli
has also laterals sigillar fields that are longer than the median ones, shorter rostral, lamellar and notogastral setae, longer anal setae, foveoles on the surface of prodorsum, long setae
h
of subcapitulum and setae
ad
2 situated near paraxial border of plate.