Chinese species of Pediobius Walker (Hymenoptera: Eulophidae)
Author
Cao, Huan-Xi
Author
Salle, John La
Author
Zhu, Chao-Dong
text
Zootaxa
2017
4240
1
1
71
journal article
36321
10.5281/zenodo.375759
724a3c39-a2cc-44ec-a04c-bca7f2b79ebc
1175-5326
375759
9A463357-EEE2-4A70-BCB2-573052DB48CC
33.
Pediobius polychrosis
Sheng & Wang, 1994
(
Fig. 30
)
Pediobius polychrosis
Sheng & Wang, 1994
: 103
; ♀. Holotype ♀, IZCAS, examined.
Diagnosis.
Legs except tarsi dark brown with slight dark green reflections. Collar of pronotum not margined anteriorly, but distinctly delimited from reticulate neck. In both female and male, gaster truncate ovate, with following gastral tergites usually concealed by large Gt1; Gt1 with longitudinal meshes medially (
Figs 30
a–c).
Material
examined.
Holotype
♀
,
CHINA
,
Jiangxi
, An-Fu,
2.X.1984
, coll.
Shui-Sheng Chen
(
IZCAS
),
ex.
Polychrosis
cunninghamiacola
Liu
&
Pai
.
Paratypes
4♀
, same data as the
holotype
.
Other
materials:
CHINA
,
Jiangsu
:
2♀
1♂
,
Nanjing
,
Nanjing Forest
Institute
,
VI.1982
, coll.
Qu-Xian Peng
,
ex.
Polychrosis
cunninghamiacola
Liu
&
Pai
; 1♀1♂, Xuzhou, 1978,
ex.
the pupae of
Polychrosis
cunninghamiacola
Liu & Pai.
Biology.
In China, the type specimens and the other examined specimens of
P. polychrosis
were all reared from
Polychrosis
cunninghamiacola
(
Lepidoptera
:
Tortricidae
).
Distribution in
China
.
Jiangxi
,
Jiangsu
.
Remarks.
Pediobius polychrosis
is similar to
P
.
mitsukurii
in stout body, reticulate mesoscutum and scutellum, truncated gaster, and large Gt1 with distinct longitudinal meshes. With careful observations, many differences will be found between them: in
P
.
polychrosis
, flagellum, femora and tibiae dark brown with dark green reflections, occiput sharply margined between eyes, lateral corners of pronotum not prominent, and two lateral foveae on dorsellum strongly reduced (
Figs 30
a–c); while for
P
.
mitsukurii
, flagellum, femora and tibiae pale, occiput more blunt and only margined behind each posterior ocellus (but male has occiput distinctly margined), lateral corners of pronotum strongly prominent, and two lateral foveae on dorsellum strikingly large (but reduced in male) (
Figs 29
a– c). Compared with
P
.
mitsukurii
,
P
.
polychrosis
is closer to
P. facialis
because they share similar short female antennae and reticulate sculpture on mesoscutum and scutellum, which their males appear more similar than females (
Figs 12
c, 30c).
Pediobius polychrosis
is easily distinguished from
P. facialis
by truncated gaster with Gt2-7 nearly concealed by Gt
1 in
both females and males (
Figs 30
a–c). Males of
P
.
polychrosis
has F3 transverse (
Fig.
30c) and males of
P
.
facialis
has F3 longer than broad (
Fig. 12
f). As discussed under
P
.
mitsukurii
, additional evidence is necessary to discuss their relationships further. See the key (couplet 24) and also remarks under
P
.
mitsukurii
.