Taxonomy of the genus Indoquedius Blackwelder (Coleoptera: Staphylinidae: Staphylininae) of China with description of four new species
Author
Zhao, Zony-Yi
Author
Zhou, Hong-Zhang
text
Zootaxa
2010
2619
27
38
journal article
10.5281/zenodo.198060
ed312cce-318a-473e-9e60-a9b097373666
1175-5326
198060
Genus
Indoquedius
Blackwelder, 1952
Cameron
, 1932
: 281, 300 (subgenus of
Quedius
);
Blackwelder, 1952
: 199 (designation of the
type
species);
Smetana, 1988
: 300;
Smetana, 1995
: 112;
Smetana, 2004
: 656;
Herman, 2001a
: 9;
Herman, 2001b
: 3079;
Hayashi, 2009
: 147.
Type
species
:
Quedius oculatus
Fauvel
, fixed by original designation in
Blackwelder (1952)
.
The genus
Indoquedius
can be easily recognized by the following characters:
Head:
dorsal surface of head (and pronotum) very smooth and glossy, lacking microsculpture, two or three setiferous punctures between anterior and posterior frontal setiferous punctures along medial side of eye; labial palpomere II bearing numerous long setae on medial side forming a setal brush (
Fig. 1A
), last maxillary and labial palpomeres sparsely setose; antennomeres I–III only bearing sparse large setae, lacking dense pubescence, all antennomeres obviously longer than wide (
Fig. 1B
).
Thorax:
pronotum usually with two, rarely three, setiferous punctures in each dorsal row, one setiferous puncture and sometimes another less obvious and smaller puncture in each sublateral row; prothorax with additional posterior ventral plate, which divided into two pieces by median longitudinal suture (
Fig. 1C
), or entire with anterior median longitudinal ridge (
Fig. 1
D).
Legs:
protarsomeres I–IV strongly dilated, with ventral surface covered with dense adhesive setae.
The genus
Indoquedius
is distributed in the Oriental and the Eastern Palaearctic regions (
Fig. 2
). In
China
, six species (numbers 2, 8, 13, 19, 20 and 21) are present in the southwestern area of the country near the Himalayan region, and four (numbers 3, 5, 8 and 17) in the Island of
Taiwan
(of them three species are endemic). No species of this genus are known from a large territory of North-Eastern and Southern
China
. Only one species (number 22), described here, occurs in South-Eastern
China
.