New species and synonymies in Xenopygus Bernhauer (Coleoptera: Staphylinidae: Staphylinini)
Author
Chatzimanolis, Stylianos
Author
Caron, Edilson
text
Zootaxa
2016
4200
1
131
142
journal article
37753
10.11646/zootaxa.4200.1.5
19137a58-09d1-4bfd-b42f-da50c723ce01
1175-5326
177837
2BBBAB3F-45A7-4C03-B161-EBCF480C0660
Xenopygus
Bernhauer
Xenopygus
Bernhauer, 1906: 196
[species included:
X. analis
(Erichson, 1840)
,
X. bicolor
(Laporte, 1835)
]; full taxonomic history in
Caron
et al.
2016
.
Leptodiastemus
Bernhauer, 1934
: 215
[described as subgenus of
Dysanellus
, species included:
Dysanellus
(
L.
)
excellens
Bernhauer, 1934
]; type species
Dysanellus
(
L.
)
excellens
Bernhauer, 1934
; fixed by monotypy.
New synonymy.
Type species:
Xenopygus analis
(Erichson, 1840)
;
Blackwelder 1943
: 451.
Diagnosis.
Xenopygus
can be distinguished from all other
Xanthopygina
based on the combination of the following characters: antennomeres 6–10 transverse (in contrast to several species of superficially similar
Oligotergus
that have antennomeres 6–10 subquadrate or longer than wide); labial palpomere 3 truncate and not securiform; head narrow (much wider in the related genus
Xanthopygus
); nuchal ridge developed (absent in some
Xanthopygina
genera); neck with punctures and micropunctures (punctation absent in most
Xanthopygina
genera); postcoxal process present (absent in
Oligotergus
); abdominal terga III–IV or III–V with arch-like carina (absent in some closely related
Xanthopygina
genera).