A cybertaxonomic revision of the new dung beetle tribe Parachoriini (Coleoptera: Scarabaeidae: Scarabaeinae) and its phylogenetic assessment using molecular and morphological data
Author
Tarasov, Sergei
text
Zootaxa
2017
2017-10-04
4329
2
101
149
journal article
31902
10.11646/zootaxa.4329.2.1
7e33ec7d-211b-4042-8d07-344364ee805d
1175-5326
1001915
8226E27D-E3A9-481A-B51B-558643Bbb03A
Parachorius fukiensis
(
Balthasar, 1960
)
new combination
(
Figs. 8
,
25C
)
Cassolus fukiensis
Balthasar, 1960
: 90
Cassolus fukiensis
;
Balthasar 1963
: 261
Type
locality
.
Kuatun
,
Fújiàn Province
,
China
.
Distribution.
The species is known from southeast
China
(
Fújiàn Province
),
Laos
, and
Vietnam
. The locality in
Fújiàn province
is the northernmost one among all the species in the genus
Parachorius
. Given the large extent of occurrence, this species is probably widespread in Indochina and southern
China
.
Taxonomic notes.
The known localities of this species are quite distantly located from each other, which is uncommon for the members of
Parachorius
. Therefore, this distributional pattern may suggest that
P. fukiensis
represents a complex of similar species and requires additional material and a more detailed study to resolve the issue.
Diagnosis.
This species is most similar to
P. bolavensis
. It differs from
P. bolavensis
in aedeagal parameres emarginate superiorly (
i.e.
, dorsally in lateral view,
Fig. 8A–C
), rounded aedeagal apex, and metafemoral posterior margin not rimmed.
Parachorius fukiensis
can be separated from the rest of
Parachorius
species by the shape of aedeagus.
Description.
Body.
Body black, length
3.5–4.6 mm
. Elytra uniformly colored, mostly dark.
Head.
Clypeus with two teeth, outer margin of each tooth distinctly notched basally.
Pronotum.
Pronotum rounded laterally. Frontal angles rounded. Disc covered with punctures separated by 1–2 puncture diameter(s). Pronotum in anterior-posterior direction notably shorter than elytra.
Elytra.
Elytra covered with sparse punctures.
Wings.
Wings normally developed.
Legs.
Profemur with anterior margin produced in angle medially or with almost straight or sinuate anterior margin. Protibia with apical spur approximately reaching middle of protarsomere 3. First tooth normal, notably modified in males, approximately twice as wide as second tooth; first and second teeth distinctly separated from each other; first tooth distinctly separated from denticles located between first and second teeth. Metafemoral posterior margin not serrate, simple, or dilated in apical third of metafemur and produced in angle. Metatibia slightly sinuate, inner margin not denticulate, produced in small angle apically.
Metasternum.
Transverse basal ridge of metasternum reduced and extremely short.
Aedeagus.
Parameres symmetrical, emarginate superiorly (
i.e.
, dorsally in lateral view,
Fig. 8A–C
), apex rounded.
Material
examined.
Holotype
:
China
:
male
, "
Kuatun
(
2300m
)
27.40n
.
Br.
117.40ö.
L. Klapperich
29.4.1938
(
Fukien
) /
Cassolus fukiensis
n.sp.
Balth
.
Holotypus
/
Holotpus
Parachorius fukiensis Balthasar S. Tarasov
det. 2011",
27°40'N
,
117°40'E
(
NMPC
)
.
Laos
:
1 male
,
Xieng Khouang
Province, Phonsavan,
Plain of Jars
N3,
19°17.33'N
,
103°9.17'E
,
1100 m
, disturb montane forest, on
3–16/viii/2008
(
S. Tarasov
) (CST)
.
Vietnam
:
1 male
, Gialai Contum, Buonluoi,
14°20'N
,
108°36'E
,
12/vi/1982
(
L. Medvedev
) (
ZIN
)
.
2 males
, SW
Donghoi
,
17°28'N
,
106°35'E
,
300 m
,
27/iii/1963
(
O. Kabakov
) (
ZIN
)
.