New species of palaearctic Euphthiracaridae (Acari, Oribatida)
Author
Niedbała, Wojcieh
text
Zootaxa
2006
2006-04-19
1175
43
54
journal article
27056
10.5281/zenodo.2645867
f4ca459b-ff7e-4517-86fa-75402b6d2d7d
1175-5326
2645867
5B0620B3-6B5D-4ACC-86D6-CD333E0A26AE
Euphthiracarus sikhotealinicus
sp. nov.
(
Figs 2
. A–C)
Description
Measurements of
holotype
: prodorsum: length 333, width 237, height 136, sensillus 111, setae:
in
131,
le
and
ro
85.8,
ex
55.5; notogaster: length 692, width 414, height 454, setae:
c
1
85.8,
h
1
116,
ps
1
101; genitoaggenital region 268 x 70.7; anoadanal region 313 x 60.6.
Colour light brown. Surface of body covered with deep, round foveoles smaller than are distances between them.
Prodorsum with two pairs of lateral carinae; dorsal strongly marked but with irregular line, ventral carinae weak. Sensilli rigid, without head, pointed distally and covered sparsely with small spines. Interlamellar and lamellar setae also rigid, sparsely covered with small spines in distal half, rostral setae slender, rough. Long exobothridial setae. Distance between lamellar and rostral setae shorter than between interlamellar and lamellar setae. The same distance between lamellar and rostral setae.
Notogaster with relatively short (
c
1
<c
1
d
1
) setae, with sparse small spines in distal half. Setae
c
1
and
c
2
far from anterior margin, setae
c
3
shorter and not as far from border. Opening of opisthosomal gland and arrangement of lyrifissures and vestigial setae typical of genus.
FIGURE 2.
A–I. A–C.
Euphthiracarus sikhotealinicus
sp. nov.
(holotype): A, prodorsum, dorsal view, B, prodorsum, lateral view, C, opisthosoma, lateral view. D–F.
Euphthiracarus subcedrus
sp. nov.
(holotype): D, prodorsum, dorsal view, E, prodorsum, lateral view, F, opisthosoma, lateral view. G–I.
Euphthiracarus suputincus
sp. nov.
(holotype): G, prodorsum, dorsal view, H, prodorsum, lateral view, I, opisthosoma, lateral view.
Ventral region. Nine pairs of genital setae with formula 6:3; two pairs of rather thick aggenital setae similar in length. Anal setae
an
1
and
an
2
attenuate and flagellate, longer than rough
an
3
and adanal setae.
Chaetome of legs (without tarsi): I: 135(2)5(1), II: 143(1)5(1), III: 222(1)3(1), IV: 211(1)2(1). Tarsi heterotridactylous.
Types
Holotype
:
Russia
,
Far East
,
Sikhote Alin’
,
Manteifia Mts.
, litter in birch bushes,
10 IX 1971
, leg.
N.S. Sagdeeva
; one
paratype
:
Russia
, Far East, the
SikhoteAlin’ reserve
, Szanguj, under cedar,
20 IX 1972
, leg.
N.S. Sagdieva
; three
paratypes
:
Russia
, Far East, the
SikhoteAlin’ reserve
, “Ternyj moch
”
at the seaside,
IX 1971
, leg.
N.S. Sagdeeva.
Etymology
The specific name
sikhotealinicus
refers to the SichoteAlinsky reserve.
Comparison
The new species is distinguishable by the presence of deep foveoles on the surface of body and distally pointed rigid sensilli. The similar Japanese species
E. (E.) foveolatus
Aoki, 1980
has larger foveoles on the surface of body, larger than the distance between them as well only seven pairs of genital setae.