Contributions towards an understanding of the Atomariinae (Coleoptera, Cryptophagidae) of Atlantic Canada
Author
Majka, Christopher
Nova Scotia Museum, Halifax, NS, Canada
Author
Johnson, Colin
,, United Kingdom
Author
Langor, David
Natural Resources Canada, Edmonton, Canada
text
ZooKeys
2010
2010-02-02
35
35
37
63
journal article
10.3897/zookeys.35.318
d312e146-9347-4644-b2fe-8829d8221d21
1313–2970
576616
Atomaria apicalis
Erichson, 1846
NEWFOUNDLAND:
Portugal
Cove
:
Indian Meal Line
,
June 2, 1979
,
July 1, 1979
,
June 22, 1981
,
September 1, 1981
,
July 21, 1982
(14,
MUN
)
;
Gander
,
July-August
, 1998, D.
Russell
(2,
MUN
)
;
South Pond
near
South Brook
,
June 27, 1980
,
Brennan
&
Larson
, drift (2,
MUN
).
NEW BRUNSWICK:
Albert Co.
:
Mary’s Pt.
,
September 8, 2002
,
C.G. Majka
, old field, in compost (7,
CGMC
)
;
Westmorland Co.:
Figures 8–ΙΙ. 8
Dorsal habitus photograph of
Atomaria pusilla
(Paykull)
9
Dorsal habitus photograph of
Atomaria testacea
Stephens
Ι0
Dorsal habitus photograph of
Atomaria nigrirostris
Stephens
ΙΙ
Dorsal habitus photograph of
Atomaria wollastoni
Sharp.
Figure Ι2.
Adeagus illustrations of
Atomaria
species.
Ι2.Ι
Atomaria apicalis
Ι2.2
Atomaria ephippiata
Ι2.3
Atomaria fuscata
Ι2.4
Atomaria lederi
Ι2.5
Atomaria lewisi
Ι2.6
Atomaria pusilla
Ι2.7
Atomaria testacea
Ι2.8
Atomaria nigrirostris
Ι2.9
Atomaria wollastoni
.
Adapted from
Sjöberg (1947)
,
Lohse (1967)
,
Johnson (1970
,
1971
) with additional material. Note: no illustration of the adeagus of
A. distincta
was available.
Pointe-du-Chene
,
July 6, 1972
,
August 24, 1972
,
D.H. Murray
(5,
MMUE
)
;
NOVA SCOTIA
:
Halifax Co.
:
Halifax
,
September 7, 1972
,
D.H. Murray
(2,
MMUE
)
;
Halifax
,
July 1988
,
P.M. Hammond
(1,
BMNH
)
;
Lunenburg Co.
:
Bridgewater
,
June 30, 1965
,
B. Wright
, red oak,
window trap
(1,
NSMC
)
;
Queens Co.
:
Medway
River
,
July 13, 1993
,
J. & T. Cook
,
car net
(2,
JCC
)
.
Atomaria apicalis
is newly recorded in insular Newfoundland,
New Brunswick
,
Nova Scotia
, and Atlantic
Canada
(Fig. 16). We have examined the
holotype
of
Atomaria ovalis
Casey 1900
deposited in the Smithsonian Institution and have found it to be identical in all respects to
A. apicalis
Erichson. We
therefore designate
A. ovalis
syn. n.
as a junior synonym of
A. apicalis
.
|
NB
|
NS
|
PE
|
NF
|
LB
|
Origin
|
|
Atomaria (Anchicera)
Thomson
|
|
Atomaria apicalis
Erichson
|
1 |
1 |
1 |
Holarctic |
|
Atomaria distincta
Casey
|
1 |
1 |
Nearctic |
|
Atomaria ephippiata
Zimmerman
|
1 |
1 |
1 |
1 |
Nearctic |
|
Atomaria fuscata
Schönherr
|
1 |
1 |
1 |
1 |
1 |
Holarctic |
|
Atomaria lederi
Johnson
|
1 |
Holarctic? |
|
Atomaria lewisi
Reitter
|
1 |
1 |
Palaearctic? |
|
Atomaria pusilla
(Paykull)
|
1 |
1 |
Palaearctic |
|
Atomaria testacea
Stephens
|
1 |
1 |
Palaearctic? |
|
Atomaria
(s. str.)
Stephens
|
|
Atomaria nigrirostris
Stephens
|
1 |
1 |
1 |
Holarctic? |
|
Atomaria wollastoni
Sharp
|
1 |
1 |
1 |
Holarctic? |
| Total |
7 |
10 |
1 |
5 |
4 |
In North America this species has previously been reported from Connecticut, Indiana, Iowa, Maine, Manitoba, Massachusetts, New Hampshire, New York, Québec (
Blatchley 1910
;
Britton 1920
;
Leng 1920
;
Procter 1946
;
Bousquet 1991
;
Downie and Arnett 1996
;
Chandler 2001
). It is widely distributed in the Palaearctic region being found throughout Europe and North Africa, east across Siberia to the Russian Far East, across the Middle East, to Central Asia,
Mongolia
, and
Fujian
in
China
(
Johnson et al. 2007
).
Johnson (1993)
reported that it was, “a grassland species which has been recorded especially around farms, gardens and parks but often occurs in other habitats. It has been collected in man-made heaps of refuse, especially cut vegetation, grass, compost and dung heaps, flood debris, and more rarely on carrion and rotting fungi.”
Description
:
A variable species; head, pronotum, and elytra piceous to castaneous or (more rarely) black; elytra sometimes paler in apical 2/5. Legs, prosternum, and abdominal sterna reddish-testaceous. Pronotum weakly constricted from middle to base; from middle to apex even more strongly. Rarely, in males the basal half of the pronotum is parallel-sided, or very weakly constricted basally. Punctures of the pronotum and elytra very variable; on the base of the pronotum, interspaces between punctures ̴ 1.0 times the diameter of puctures. Punctation of elytra similar to that of pronotum, or finer and shallower, but always less dense. Distance between furrows of prosternal process approximately half the width of the prosternal process. Body strongly convex in cross-section (Fig. 2). Antennae: antennomere 1 swollen, slightly longer than 2; 3 as long as 2 but narrower; 4–8 short and bead-like; club distinct, antennomeres 9 and 10 slightly transverse (Fig. 1.1). Body: width/length ratio, 0.41; length, 1.3–1.6 mm.