Taxonomy of the genus Megalinus Mulsant & Rey (Coleoptera: Staphylinidae, Xantholinini) and seven new species from China
Author
ZHOU, YU-LINGZI
Author
BORDONI, ARNALDO
Author
ZHOU, HONG-ZHANG
text
Zootaxa
2013
2013-10-25
3727
1
1
66
http://dx.doi.org/10.11646/zootaxa.3727.1.1
journal article
10.11646/zootaxa.3727.1.1
11755334
10099790
EBFEDD52-94FA-4AC9-93BB-BE6101BB1B31
Genus
Megalinus
Mulsant & Rey, 1877
Mulsant & Rey, 1877: 261
(subgenus of
Xantholinus
; species included:
glabratus
);
Bernhauer & Schubert, 1914: 300
(subgenus of
Xantholinus
);
Cameron, 1932: 22
(subgenus of
Xantholinus
);
Blackwelder, 1943: 473
(subgenus of
Xantholinus
;
type
species:
glabratus
);
Tottenham, 1949a: 369
, 417 (
type
species:
glabratus
Gravenhorst
; subgenus of
Xantholinus
; checklist of British species);
Blackwelder, 1952: 234
(
type
species:
glabratus
);
Coiffait, 1956: 58
, 69 (subgenus of
Xantholinus
; characters in key; key to species);
Smetana, 1958: 99
(synonym of
Xantholinus
);
Moore, 1963: 94
(characters);
Lohse, 1964: 163
(subgenus of
Xantholinus
; characters; key to central European species);
Coiffait, 1972: 209
(characters;
type
species:
glabratus
; valid genus; key to species of western Palaearctic region; references);
Bordoni, 1972: 163
(subgenus of
Xantholinus
; characters);
Bordoni, 1974: 89
(subgenus of
Xantholinus
; distributional notes); Moore & Legner, 1975: 83 (catalog; North America north of
Mexico
);
Moore & Legner, 1979: 65
(characters; notes);
Bordoni, 1982: 200
(characters; habitus; key to species of
Italy
);
Shibata, 1973: 55
(checklist of species of
Japan
);
Herman, 2001a: 3697
(catalog);
Smetana, 2004: 691
(catalog);
Assing, 2007: 43
(two new synonyms; comments); Bordoni, 2007: 71 (catalog).
Lemiganus
Bordoni, 1985: 86
(species included:
elianae
;
type
species:
Xantholinus elianae
Jarrige
, fixed by original designation and monotypy);
Smetana, 2004: 689
(catalog);
Bordoni, 2012b: 170
(synonym of
Megalinus
).
Metacyclinus
Reitter, 1908: 115
(species included:
glabratus
,
relucens
,
glaber
,
scutellaris
,
baicalensis
,
laevissimus
,
sublaevis
;
type
species:
Staphylinus glabratus
Gravenhorst
, fixed by subsequent designation by
Blackwelder, 1943: 473
);
Reitter, 1909: 137
(subgenus of
Xantholinus
; key to species);
Bernhauer & Schubert, 1914: 300
(subgenus of
Xantholinus
);
Cameron, 1932: 22
(subgenus of
Xantholinus
);
Scheerpeltz, 1933: 1307
(subgenus of
Xantholinus
);
Blackwelder, 1943: 473
(synonym of
Megalinus
;
type
species:
glabratus
);
Tottenham, 1949b: 41
(
type
species:
relucens
);
Tottenham, 1949a: 369
, 416 (
type
species:
relucens
Gravenhorst; subgenus of
Xantholinus
; checklist of British species);
Smetana, 1958: 99
(synonym of
Xantholinus
);
Coiffait, 1972: 209
(synonym of
Nudobius
);
Bordoni, 1982: 200
(synonym of
Megalinus
);
Herman, 2001a: 3697
(catalog);
Smetana, 2004: 691
(catalog; synonym of
Megalinus
).
Leptophius
Coiffait, 1983: 345
(replacement name for
Leptophallus
Coiffait
,
type
species:
Xantholinus flavocinctus
Hochhuth
, fixed by objective synonymy with
Leptophallus
);
Bordoni, 1985: 83
(valid genus;
type
species
flavocinctus
);
Herman, 2001a: 3687
(catalog);
Smetana, 2004: 690
(catalog); Bordoni, 2007: 69 (catalog);
Assing, 2007: 43
(synonym of
Megalinus
).
Leptophallus
Coiffait, 1956: 57
, 59 (nec. Lueche, 1909; subgenus of
Xantholinus
; species included:
relucens
,
elianae
;
type
species:
Xantholinus flavocinctus
Hochhuth
);
Coiffait, 1962: 394
(subgenus of
Xantholinus
; characters);
Lohse, 1964: 163
(subgenus of
Xantholinus
; characters; key to central European species);
Coiffait, 1972: 219
, 222 (subgenus of
Xantholinus
; characters;
type
species:
flavocinctus
; key to species of western Palaearctic region);
Bordoni, 1972: 160
, 164 (subgenus
Xantholinus
; characters; notes);
Bordoni, 1982: 240
, 248 (subgenus of
Xantholinus
;
flavocinctus
cited as
type
species);
Coiffait, 1983: 345
(replaced by
Leptophius
);
Bordoni, 1985: 83
(synonym of
Leptophius
;
flavocinctus
cited as
type
species);
Janák, 1993: 47
(synonym of
Leptophius
);
Herman, 2001b: 10
(
type
species; discussion; fixed by application of article 70.3.2);
Herman, 2001a: 3687
(catalog);
Smetana, 2004: 689
(catalog; synonym of
Leptophius
);
Assing, 2007: 43
(synonym of
Megalinus
).
Lepidophallus
Coiffait, 1956: 58
, 59 (subgenus of
Xantholinus
; species included:
hesperius
,
pseudohesperius
;
type
species:
Xantholinus hesperius
Erichson
, fixed by original designation);
Coiffait, 1962: 389
, 392 (characters; valid genus; key to North African species);
Coiffait, 1972: 171
(characters;
type
species:
hesperius
; key to species of western Palaearctic region);
Bordoni, 1982: 232
(characters; habitus; key to species of
Italy
);
Coiffait, 1982a: 26
(valid genus; notes);
Herman, 2001a: 3659
(catalog);
Bordoni, 2002: 631
(revision; key to species; characters);
Smetana, 2004: 689
(catalog);
Bordoni, 2007b: 70
(catalog);
Bordoni, 2008: 55
(synonym of
Megalinus
).
Type
species:
Staphylinus glabratus
Gravenhorst, 1802: 178
, fixed by monotypy.
Diagnosis
:
Megalinus
can be distinguished from all other genera within the tribe
Xantholinini
by the following characters: a) body subcylindrical, usually medium to large in size (
7–10 mm
), few ca.
6 mm
; b) head subquadrate or subrectangular, with round, deep and sparse punctures, some bearing microsculpture; c) frontal furrows and anteocular furrows normally quite long and deep; d) antennomere II and III elongate, subequal in length or II longer; e) labrum bilobed, with medial longitudinal furrow; f) last segment of maxillary and labial palpi elongate and longest; g) gular sutures not fused together, separated by the shallowly excavated gular plate; h) neck slightly wider than 1/3 of head width; i) pronotum normally with paired admedian and lateral rows of punctures, some bearing numerous rows of punctures; j) antesternal plate with a longitudinal medium furrow; k) superior line of hypomeron bending toward prosternum before anterior angle of pronotum, but not joining inferior line; l) each elytron bearing several rows of punctures; m) protarsi not dilated, only protibiae with subapical ctenidia; n) median lobe of aedeagus large sized, anterior portion short, departed from basal bulb, inner sac of varied shape and composition; o) female genital segments composing of transverse sternite, and a pair of subtriangular sclerites.