Zookeys 22: 5-I 7 (2009) A peer-rev iewed open-access journal 1]
doi: 10.3897/zookeys.22.86 RESEARCH ARTICLE #$ZooKey

www.pens oftonline.n et/zoo keys Launched to accelerate biodiversity research

Survey of rove beetles (Coleoptera, Staphylinidae)
from Stanley Park, Vancouver, British Columbia,
Canada, with new records and description
of a new species. Part |

John A. McLean'*, Jan Klimaszewski?*, Agnes Li!’, Karine Savard?!

| Department of Forest Sciences, Faculty of Forestry, University of British Columbia, Vancouver, British Co-
lumbia, Canada 2. Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Quebec,
Quebec, Canada

t urn:lsid:zoobank. org:author:E7BE167E-6F60-4863-A41 1-66093602A245
t urn-lsid:zoobank. org:author:75880C 1 4-430B-45F6-8 B6D-840428F3FF37
§ urn-lsid:zoobank. org:author:6 B942232-5 COA-4336-8F 1A-3555E1LA1OB6F
| urn:lsid:zoobank. org:author:716D03A0-DF55-4A60-AA54-DF4COF4A8E7E

Corresponding author: Jan Klimaszewshki (jan.klimaszewski@nrcan-rncan.gc.ca)

Academic editor: Volker Assing | Received 23 January 2009 | Accepted 24 February 2009 | Published 28 September 2009
urn:lsid:zoobank.org:pub:EB1FB298-E8B5-49EF-AB5E-OF 1 1 5B4A3D42

Citation: McLean JA, Klimaszewski J, Li A, Savard K (2009) First survey of rove beetles (Coleoptera, Staphylinidae)
from Stanley Park, Vancouver, British Columbia, Canada, with new records and description of a new species. Part 1.
In: Majka CG, Klimaszewski J (Eds) Biodiversity, Biosystematics, and Ecology of Canadian Coleoptera II. ZooKeys 22
5-17. doi: 10.3897/zookeys.22.86

Abstract

The first survey of rove beetle species from Stanley Park, Vancouver, British Columbia, Canada is pre-
sented. Thirty-five species are reported from the following subfamilies: Aleocharinae (14), Micropeplinae
(1), Omaliinae (7), Oxytelinae (2), Paederinae (1), Proteininae (2), Pselaphinae (1), Staphylininae (3),
and Tachyporinae (4). All species are listed in Table 1. One new species, Oxypoda stanleyi Klimaszewski &
McLean, sp. n., is described and illustrated and three new adventive aleocharine species are recorded for
the first time from British Columbia. They are: Dalotia coriaria (Kraatz), Mocyta fungi (Gravenhorst), and
Oxypoda opaca (Gravenhorst). These exotic species were previously known from the Palaearctic region,
eastern Canada, and the United States.

Keywords

British Columbia, Canada, Coleoptera, new species, Staphylinidae, Stanley Park, survey, Vancouver

Copyright John A. McLean et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which
permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

6 John A. McLean, Jan Klimaszewski, Agnes Li, Karine Savard / ZooKeys 22: 5-17 (2009)

Introduction

As part of the Stanley Park, Vancouver, restoration plan it was proposed to survey
the forest insects that could be at special risk as a result of tree damage from the win-
ter storm in December 2006, and accumulation of the very large amount of coarse
woody debris (Map 1). There is concern that some exotic insects might also become
established in the areas with severe tree damage. The results of this survey are from
sampling conducted in the undamaged part of the Stanley Park forest. They consti-
tute the baseline data, which will be used for comparison with rove beetle samples
collected in the severely damaged forest of the park, and will be published in a sepa-
rate contribution as part 2.

As very little is known about the insect diversity in the Park, a sampling and
monitoring program was undertaken to determine what species of insect are present.
A series of pitfall traps were set out, in addition to other sampling methods, to survey
for ground and rove beetle populations. ‘The results of rove beetle collecting are pre-
sented in this contribution. The trapping yielded 35 species of Staphylinidae (Table
1), including one species new to science, Oxypoda stanleyi Klimaszewski & McLean,
sp. n., and three adventive aleocharine species, Dalotia coriaria (Kraatz), Mocyta fungi
(Gravenhorst) and Oxypoda opaca (Gravenhorst), recorded for the first time from
British Columbia.

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Map |. Map of Stanley Park, Vancouver, British Columbia, showing collecting locations for the 2007
insect survey.

First survey of rove beetles (Coleoptera, Staphylinidae) 7

Study locations

Two undamaged sites in Stanley Park, site A and site B [49°18’02”N, 123°07'04’W;
49°18°22"N, 123°09'11”W respectively], were designated for trapping insects (Map
1). Site A was located in an area adjacent to the Vancouver Aquarium and site B was
along the Rawlings Trail near the Hollow Tree Reserve. The Vancouver Aquarium
site consisted of a closed canopy second-growth forest, mainly Douglas-fir (Pseudot-
suga menziesii (Mirb.) Franco), with a bare forest floor with old needles and some ivy
around trap site 1. The Hollow Tree site consisted of a closed canopy second-growth
stand of mainly western hemlock (Tsuga heterophylla (Raf.) Sarg.) and a few Douglas-
fir and western cedar (Thuja plicata Donn ex D. Don) with a bare forest floor with
old needles. Traps were set out on April 20, 2007 and operated during the summer
months. At each site, four Lindgren multiple funnel traps, a flight-intercept trap,
and a pitfall trap near each of the hanging traps were set up. Polypropylene glycol
was used in all traps for preserving captured insects. The Lindgren traps were baited
with specific pheromones, ethanol lures, and alpha-pinene lures. The pitfall traps
were unbaited.

The following main references were consulted for the identification of rove bee-
tles: Campbell (1973), Hatch (1957), Newton et al. (2000), Smetana (1971, 1976),
Klimaszewski (2000), Klimaszewski and Winchester (2002), Klimaszewski et al.
(2001, 2004, 2006, 2007).

Material examined

More than 160 adult rove beetles were examined, 11 of which were dissected. The
genital structures were dehydrated in absolute alcohol and mounted in Canada
balsam on celluloid microslides and pinned with the specimens from which they
originated. The photographs of the entire body of Oxypoda stanleyi and the gen-
ital structures were taken using an image processing system (Nikon SMZ 1500
stereoscopic microscope; Nikon digital camera DXM 1200f; and Adobe Photoshop
software).

Terminology mainly follows that employed by Seevers (1978). The ventral part of
the median lobe of the aedeagus is considered to be the part of the bulbus containing
the foramen mediale, the entrance of the ductus ejaculatorius, and the adjacent venter
of the tubus; the opposite side is referred to as the dorsal part.

Conventions

Authorship of a new taxon. Authorship of a new taxon is attributed to Klimaszewski,
J. and McLean, J. alone.

8 John A. McLean, Jan Klimaszewski, Agnes Li, Karine Savard / ZooKeys 22: 5-17 (2009)

Repository abbreviations:

CNC Canadian National Collection of Insects, Arachnids, and Nematodes, Agri-
culture and Agri-Food Canada, Ottawa, Ontario, Canada

LFC Natural Resources Canada, Canadian Forest Service, Laurentian Forestry
Centre, Quebec City, Quebec, Canada

UBC University of British Columbia, Spencer Entomological Collection, Beaty
Biodiversity Museum, Vancouver, British Columbia, Canada

UNH University of New Hampshire, Department of Zoology, Durham, New
Hampshire, USA

Systematics

Tribe Oxypodini Thomson, 1859

Genus Oxypoda Mannerheim, 1830

For literature review and diagnosis, see Klimaszewski et al. 2006.

1. Oxypoda stanleyi Klimaszewski & McLean, sp. n.
urn:lsid:zoobank.org:act:A998F39F-A93C-40AF-9E03-BA1 1A6263F8C
Figs 1-9

HOLOTYPE (male): CANADA, British Columbia, Vancouver, Stanley Park, Hol-
low Tree, CWH, 49°18'22”N, 123°09'11’W, pitfall trap #5, 29.IV-10 V. 2007, J.A.
McLean, A. Li, J. Derhousoff; Staphylinidae A. Li I, 2008 (LFC). PARATYPES:
labelled as the holotype (LFC) 2 males, 1 female, funnel trap #4 (UBC) 1 female;
same labels as the holotype except: 10.V-23.V.2007, pitfall #5 (LFC) 1 male; 20.VI-
29.V1.2007, pitfall #5 (LFC) 1 male, (UBC) 2 males; 10.VH-31.VII.2007, pitfall
#5 (LFC) 1 female; Vancouver, Stanley Park, Vancouver Aquarium, 49°18'02’N,
123°07'04’W, pitfall trap #1, 20.IV-29.IV.2007, pitfall #1, J.A. McLean, A. Li, J.
Derhousoff (LFC) 1 male; same data except: 29.IV-10.V.2007, pitfall #1 (LFC) 1
male; 10.V-23.V.2007, pitfall #4 (LFC) 2 males, (UBC) 5 males, 1 female; 23.V-7.
VI.2007, pitfall #45 (LFC) 1 female, (UBC) 2 males; 19.VI-10.VII.2007, pitfall #4
(LFC) 1 male, (UBC) 2 females.

Etymology. This species is named for the type locality where the original speci-
mens were captured. Stanley Park was formally opened in 1888 by Lord Stanley, Earl
of Preston, the Governor General of Canada (Steele 1988).

Diagnosis. Oxypoda stanleyi may be distinguished from the remaining Nearctic
species of Oxypoda by the following features: body narrowly oval, rust-brown with
dark brown head and at least posterior third of abdomen, forebody with scarcely visible
microsculpture, length 1.6-1.9 mm, antennae strongly thickened and incrassate (Fig.

First survey of rove beetles (Coleoptera, Staphylinidae)

Figure |. Oxypoda stanleyi Klimaszewski & McLean, sp. n., dorsal habitus.

10 John A. McLean, Jan Klimaszewski, Agnes Li, Karine Savard / ZooKeys 22: 5-17 (2009)

1), median lobe of aedeagus and spermatheca of a characteristic shape (Figs. 2, 3, 7).
Known to occur in coastal British Columbia.

Description. Body small, reddish-brown with dark brown head and at least
posterior half of abdomen; length 1.6-1.9 mm, approximately narrowly oval, slight-
ly broadest at middle of elytra, abdomen subparallel basally and gradually nar-
rowed posterad (Fig. 1); forebody with scarcely visible microsculpture, sculpticells
of flattened hexagonal shape; integument moderately glossy; pubescence sparse on
head and abdomen and denser elsewhere (Fig. 1). Head (Fig. 1) broadest at poste-
rior eye level, narrower than pronotum, pubescence directed anterad centrally and
slightly obliquely laterad laterally, frontal suture and infraorbital carina strong; eyes
moderately sized, approximately as long as postocular area; antennae strongly swol-
len, articles 4-9 strongly transverse and incrassate (Fig. 1); maxillary palpus with
4 articles, last one needle-shaped; labial palpus with 3 articles; glossae separated,
V-shaped; pronotum moderately convex, strongly transverse and slightly narrower
than elytra at maximum width, ratio of maximum pronotal width/length 1.3, pu-
bescence directed straight posterad along midline of disc and obliquely posteri-
orly elsewhere (Fig. 1); elytra slightly broader at middle than pronotum and at
suture slightly shorter than pronotum, pubescence directed approximately straight
to slightly obliquely posterad (Fig. 1); abdomen subparallel basally and slightly ta-
pering apically; three basal tergites with strong basal impressions; metatarsus with
basal article elongate and at least as long as two following articles combined. Male.
Tergite 8 slightly transverse, truncate apically, antecostal suture slightly sinuate
medially (Fig. 5). Sternite 8 slightly elongate, rounded apically, antecostal suture
slightly sinuate medially (Fig. 6). Median lobe of aedeagus with moderately sized
bulbus and subparallel tubus abruptly tapering apically in dorsal view (Fig. 3); ven-
ter of tubus arcuate basally and straight subapically ending sharply in lateral view
(Fig. 2); crista apicalis large (Fig. 2); internal sac with complex structures (Figs. 2,
3); paramere with narrow and elongate apical lobe, subapical and basal setae mod-
erately long (Fig. 4). Female. Tergite 8 similar to that of male (Fig. 8). Sternite 8
approximately as long as wide, truncate apically, antecostal suture straight medially
(Fig. 9). Spermatheca with small spherical capsule with invagination facing up and
long and narrow sinuate stem (Fig. 7).

Distribution. Oxypoda stanleyi is known only from Stanley Parkm in Vancouver,
British Columbia.

Collection and habitat data. Adults were collected from April through July using
pitfall traps and one specimen was captured in a funnel trap. The majority of speci-
mens were captured in May. The thick antennae indicate that this species may be afhli-
ated with ants, but this needs to be confirmed by field observations.

Comments. Oxypoda stanleyi is distinct from other Nearctic species of Oxypoda by
the short macrosetae on the apical tergites and sternites 8 (Figs. 5, 6, 8, 9), and by its
swollen antennae. Due to these characteristics it should be assigned to a species group
of its own. Externally, except for the swollen antennae, it resembles the species from
the /nimica species group described by Klimaszewski et al. (2006). It keys to couplet 2

First survey of rove beetles (Coleoptera, Staphylinidae) 11

Figures 2-9. Genital structures and terminalia of Oxypoda stanleyi (2-6 male): 2 median lobe of ae-
deagus in lateral, and dorsal view 3, 4 paramere 5 tergite 8 6 sternite 8 (7-9 female): 7 spermatheca 8
tergite 8 9 sternite 8.

12 John A. McLean, Jan Klimaszewski, Agnes Li, Karine Savard / ZooKeys 22: 5-17 (2009)

in Klimaszewski et al. (2006), which should be modified as follows to accommodate
this species:

Key to Oxypoda species occurring in Canada and Alaska

2 Body length 1.6-1.9 mm, antennae strongly swollen, articles 9 and 10 more
than twice as broad as long (Fig. 1), known to occur in coastal British Colum-
Bld aie ces ens baer teatsatacanatedt Bevoucs susnowastouslonsotcacesthtcates te ade taelc Spe deves O. stanleyi sp. n.
— Body length 2.2-3.2 mm, antennae moderately swollen, articles 9 and 10
usually less than twice as broad as long, known from western and northern

AINA CT A Set ntsclot bh hace deal deaths Oa foal net feat clear aemene cee tedaten dchviatids ioabine abcinalt atten ts 3

2. Oxypoda opaca (Gravenhorst)
(For illustrations and details, see Hoebeke 1989 and Klimaszewski et al. 2006).

CANADA. British Columbia: Vancouver, Stanley Park, Vancouver Aquarium, CWH
(49°18'02”N, 123°07'04"W), Funnel trap 1, 29.IV-10.V.2007, J.A. McLean, A. Li, J.
Derhousoff (UBC) 1 male.

Oxypoda opaca is a widespread Palaearctic species previously recorded in North
America in the United States from North and South Carolina, New York, and Ver-
mont (Hoebeke 1989). It was first recorded in Canada from Ontario and Nova Scotia
(Klimaszewski et al. 2006). This species is here newly recorded from British Columbia.

Tribe Athetini Casey, 1910
(For literature review and diagnosis, see Klimaszewski and Winchester 2002).

3. Dalotia coriaria (Kraatz)
(For diagnosis, illustrations and literature reviews, see Klimaszewski et al. 2007, Gouix
and Klimaszewski 2007).

CANADA. British Columbia: Vancouver, Stanley Park, Hollow Tree, CWH
(49°18°22"N, 123°09'11’W), Funnel trap 2, 10.VII-31.VII.2007, J.A. McLean, A.
Li, J. Derhousoff (UBC) 1 male.

Dalotia coriaria is a cosmopolitan species that is adventive in many parts of the
world including Europe, east Africa, Madagascar, New Zealand, Galapagos Islands
(Benick and Lohse 1974; Pace 1999; Sivasubramaniam et al. 1997; Klimaszewski and
Peck 1998), and North America (Klimaszewski et al. 2007). In Canada it has previ-
ously been recorded from Ontario and Alberta (Klimaszewski et al. 2007, Gouix and
Klimaszewski 2007), and in the United States from California, Florida, Louisiana,

First survey of rove beetles (Coleoptera, Staphylinidae) 13

Massachusetts, New Jersey and New York (Moore and Legner 1975; Muona 1984;
Frank 1980; Gusarov 2003). This species is here newly recorded from British Colum-
bia. The isolated and disjunctive distribution of D. coriaria in Canada represents prob-
ably three independent introduction events.

4. Mocyta fungi (Gravenhorst)

CANADA. British Columbia: Vancouver, Stanley Park, Vancouver Aquarium, CWH
(49°18'02’N, 123°07'04’W), Pitfall trap 4, 31.VII-21.VIIH.2007, J.-A. McLean, A. Li,
J. Derhousoff (UBC) 1 female; Vancouver Aquarium, Pitfall trap 2, 29.IV-10.V.2007,
J.A. McLean, A. Li, J. Derhousoff (UBC) 1 female.

Mocyta fungi is a cosmopolitan species, which most likely arrived in North
America from Europe where it is represented by both sexes or by females only. In
most other locations including Canada, it is represented only by females. Smetana
(2004) recorded it from Europe, North Africa, Asia and North America. Gusarov
(2001-2003) reported it from New Brunswick and Majka and Klimaszewski (2008)
reported it from Nova Scotia and Prince Edward Island. Most specimens from these
locations were collected from agricultural fields with a few from coastal habitats
(Majka et al. 2008). Gouix and Klimaszewski (2007) recorded it from Labrador,
Newfoundland, New Brunswick, Quebec, and Ontario, Klimaszewski et al. (2008)
provided new records from Yukon and Alaska, and Majka and Klimaszewski (2008)
provided new records from the interior of British Columbia. Mocyta fungi is here
newly recorded from coastal British Columbia.

Tribe Homalotini Heer
(For literature review and diagnosis, see Klimaszewski et al. 2004).

Subtribe Bolitocharina Thomson

Leptusa gatineauensis Klimaszewski and Pelletier
(For details and illustrations, see Klimaszewski et al. 2004).

CANADA. British Columbia: Vancouver, Stanley Park, Hollow Tree, CWH
(49°18°22"N, 123°09'11"W), Funnel trap 1, 29.IV-10.V.2007, J.A. McLean, A.
Li, J. Derhousoff (UBC) 1 female; Vancouver Aquarium, CWH (49°18'02’N,
123°07'04"W), Funnel trap 1, 10.V-23.V.2007, J.A. McLean, A. Li, J. Derhousoff
(UBC) 1 female.

Leptusa gatineauensis was described by Klimaszewski et al. (2004) on specimens
from Nova Scotia and Ontario. It was then reported from Alberta by Majka and Kli-
maszewski (2008).

14 John A. McLean, Jan Klimaszewski, Agnes Li, Karine Savard / ZooKeys 22: 5-17 (2009)

Table 1. List of rove beetles captured in Stanley Park, Vancouver, BC, Canada. Subfamilies and species
are listed alphabetically. New distributions are in bold. Adventive species are marked with an asterisk (*).

Canadian provinces and territories and American states are abbreviated. Site A is located in the area adja-

cent to the Vancouver Aquarium and site B along the Rawlings Trail near the Hollow Tree.

Subfamilies and species

ALEOCHARINAE

Number
of
specimens
captured

Distribution in | Collecting | Collecting
sites in
Stanley

Depository

Amischa sp. 1

DES,

Amischa sp. 2
Aleochara fumata
(Gravenhorst)*

Atheta (Dimetrota)
hampshirensis Bernhauer

LRE, VBE
UBC

VII, VIL UBC

Atheta (Atheta) ringi

Klimaszewski

VI-VII UBC

Atheta (Alaobia) ventricosa
Bernhauer

Dalotia coriaria (Kraatz)*

Ty, VI, VIL, LEG, UBC

AB, ON, BC UBC

Leptusa gatineauensis
Klimaszewski

Mocyta fungi

(Gravenhorst)*

Oxypoda opaca

(Gravenhorst)*

Oxypoda stanleyi
Klimaszewski & McLean
sp. n.

Placusa tacomae Casey

Placusa vaga Casey
Stictalia californica (Casey)

ON, QC, NS, UBC
BC
ON, QC, NB,

NEL, NS;

UBC

BC
YOR INT.BC. AB. |: 6 V, VI, VII 5 UBC
ON, QC, NS

UBC

MICROPEPLINAE | | |
Micropeplus punctatus LFCSUBG
LeConte

OMALIINAE

Acrulia tumidula (Maklin) UBC
(Mannerheim)

Amphichroum maculatum
Horn

Deinopteroloma subcostatum

(Maklin)

BC B VI 1 UBC
AK, BC A,B V, VI, VII, 12 UBC
x

First survey of rove beetles (Coleoptera, Staphylinidae) 15

Subfamilies and species | Distribution in | Collecting | Collecting | Number | Depository
sites in i of
Stanley specimens

ca

Eusphalerum pothos AK, BC, AB, UBC

Mannerheim ON, QC, NB,
NS, NF

Hapalaraea megarthroides BC, AB VITI-X 1 UBC
(Fauvel)

Phloeonomus laesicollis

(Maklin) ON, QC, NS,
NE
OXYTELINAE
Oxytelus laqueatus AK, BC, YT, AB, | A, B VII, VUI 8 LFC, UBC
(Marsham)* SK, MB, ON,
QC, NB, NS
Syntomium grahami Hatch | AK, BC, QC, A VI-VII 1 UBC
NB, NF
PAEDAERINAE
Lathrobium sp. BG VI-VII 1 UBC
PROTEININAE
Megarthrus pictus A VITI-X 1 UBC
Motschulsky
Proteinus limbatus Maklin B VIII-X 2 UBC
PSELAPHINAE
Oropus striatus (LeConte) IV, V, VI, UBC,
VII, VITI-X UNH
STAPHYLININAE
Dinothenarus pleuralis BC, AB A PES ABE:
(LeConte)
Gabrius virilis (Horn) BC A UBC
Quedius crescenti Hatch BC A,B CNC,
LFC, UBC
TACHYPORINAE
Mycetoporus sp. BC B
Tachinus crotchi Horn ee LFC, UBC
Tachinus nigricornis AK, BC, AB a a UBC
Mannerheim
Tachinus semirufus Horn [AK,BC. ——« {ABE OdLV LV | 20 LFC, UBC

Acknowledgements

We thank Pamela Cheers, English Editor (LFC), for editing the first draft of this man-
uscript. Taxonomic assistance was provided by A. Smetana, Agriculture and Agri-Food
Canada, Ottawa, who identified Quedius crescenti and by D. Chandler, University of
New Hampshire, USA, who identified Oropus striatus.

16 John A. McLean, Jan Klimaszewski, Agnes Li, Karine Savard / ZooKeys 22: 5-17 (2009)

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Gnypeta Thomson from Canada, Alaska and Greenland (Coleoptera, Staphylinidae,

Aleocharinae): systematics, bionomics and distribution. ZooKeys 2: 11-84.

The following changes should be made: p. 44, Figs 99-107, change Gnypeta brincki
to Gnypeta caerula, and p. 57, Figs 139-147, change Gnypeta brincki to Gnypeta

carbonaria.