First record of the genus Alisalia Casey from Canada, description of two new species, and a key to all Nearctic species of the genus (Coleoptera, Staphylinidae, Aleocharinae)
Author
Klimaszewski, Jan
Natural Resources Canada, Québec, Canada
Author
Webster, Reginald
Natural Resources Canada, Canadian Forest Service - Atlantic Forestry Centre, Charters Settlement, NB, Canada
Author
Savard, Karine
Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Quebec ,, Canada
Author
Couture, Jérôme
Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Quebec ,, Canada
text
ZooKeys
2009
2009-10-23
25
25
1
18
journal article
10.3897/zookeys.25.280
552d48b3-0f41-47c3-a9f6-5ce761af8f8a
1313–2970
576553
7E9EBFFE-358E-4DA4-AD26-101F38A426E7
3.
Alisalia elongata
Klimaszewski & Webster
,
sp. n.
urn:lsid:zoobank.org:act:
6BF0ADCC-3600-4FA9-A087-0CB08017CA2B
Figs 4, 19–22, Map 3
HOLOTYPE
(male):
CANADA
,
New Brunswick
,
Queens Co.
,
Bayard
, at
Nerepis River
,
45.4426°N
,
66.3280°W
,
30.V.2008
,
R.P. Webster
, coll., river margin, un- der small rocks in gravel (
LFC
)
1 male
.
PARATYPE
: labelled as the
holotype
(
RWC
)
1 male
.
Etymology
.
The name of this species is the Latin adjective “elongata” meaning elongate, in reference to the elongate body shape of this species.
Description
.
Alisalia elongata
may be distinguished from the other two
Alisalia
species recorded from
Canada
by the approximately uniformly coloured body (Fig. 4), the larger size (length 2.0 mm; maximum width 0.2 mm); strongly transverse pronotum and elytra (Fig. 4), and the characteristic shape of the median lobe of aedeagus in lateral view with an elongate subapical part (Fig. 19). It has fewer transverse antennal articles than for
A. testacea
and
A. minuta
. See the key for the differences between this and the other Nearctic species.
Figures Ι9
–
22.
Alisalia elongata
Klimaszewski & Webster
,
sp. n.
:
Ι9
median lobe of aedeagus in lateral view
20
male
tergite 8
2Ι
male sternite 8
22
paramere.
Map 3.
Collection localities in
New Brunswick
,
Canada
of
Alisalia elongata
Body length 2.0 mm, narrow but distinctly broader at elytra, and with abdomen slightly tapering posteriad; approximately uniformly dark reddish-brown, but head, elytra and posterior part of abdomen appearing slightly darker than the remainder of the body, legs and bases of antennae yellowish (Fig. 4); punctation on forebody fine and dense; microsculpture inconspicuous; pubescence of head directed obliquely lateroanterad, on pronotum laterad from midline of disc, on elytra obliquely or straight posteriad, and on abdomen approximately straight posteriad (Fig. 4); antennae moderately broad as illustrated (Fig. 4); pronotum distinctly narrower than elytra, 2 times as wide as long; elytra slightly transverse; abdomen with sharply delimited horizontal basal depressions. MALE: tergite 8 truncate apically (Fig. 20); sternite 8 broadly rounded apically (Fig. 21). Median lobe of aedeagus with elongate and sinuate tubus, subapical part long and approximately straight, and medio-basal part strongly convex, crista apicalis of bulbus broad (Fig. 19), flagellum slightly projecting externally, straight in shape (Fig. 19). Paramere as illustrated (Fig. 22). FE- MALE. Unknown.
Bionomics
Macrohabitat
:
river margin.
Microhabitat:
under small rocks in gravel.
Collecting period:
May.
Collecting method:
aspirating from under rocks and gravel.
Distribution
(Map 3).
CANADA
:
New Brunswick
.