DNA barcodes reveal 63 overlooked species of Canadian beetles (Insecta, Coleoptera)
Author
Pentinsaari, Mikko
Author
Anderson, Robert
Author
Borowiec, Lech
Author
Bouchard, Patrice
Author
Brunke, Adam
Author
Douglas, Hume
Author
Smith, Andrew B. T.
Author
Hebert, Paul D. N.
text
ZooKeys
2019
894
53
150
http://dx.doi.org/10.3897/zookeys.894.37862
journal article
http://dx.doi.org/10.3897/zookeys.894.37862
1313-2970-894-53
D11503CA5A574067817904E0C8C162C8
BAF8B2CC491254A3AC7E08368A2697B5
Litargus connexus (Geoffroy, 1785)
Figure 37
Distribution.
Native to the Palaearctic region. Widespread in Europe, also recorded from North Africa, and across the region to the Russian Far East and Japan (
Nikitsky 2008
). Adventive in the Nearctic region (British Columbia, Canada).
Canadian records.
British Columbia: Burnaby, 20-Apr-2015 to 08-May-2015 (1 ex, CBG).
Diagnostic information
(based on
Vogt 1967a
). Body length 2.4-2.8 mm. Dorsal habitus elongate, sides of elytra almost parallel (
Fig. 37A
). Black, elytra with transverse, undulating yellow bands at the base and just beyond midlength, and a yellow sutural spot close to the elytral apex. Yellow markings variable, basal band frequently broken into separate spots. Antennomere 8 somewhat wider than long, terminal antennomere approximately as long as wide, structure of the antennal club as in
Fig. 37B
. Elytra with epipleura concave, descending towards the lateral edge.
Bionomic notes.
This species is found in deciduous and mixed forests in fungus-infested dead wood (
Koch 1989b
). The Canadian specimen was collected with a Malaise trap in a suburban residential area.
Comments.
The combination of the elongate and nearly parallel-sided body, color pattern of the elytra and structure of the antennae will distinguish
L. connexus
from all other
Litargus
species known from Canada.
Parsons (1975)
provides diagnoses and illustrations of the native North American species.
Figures 36, 37.
36
Orthoperus corticalis
(Redtenbacher)
36A
habitus, L. Borowiec
36B
male metaventrite
36C
aedeagus, ventral view
36D
aedeagus, lateral view
37
Litargus connexus
(Geoffroy)
37A
habitus, L. Borowiec
37B
antenna. Scale bars: 0.25 mm (
36A
), 0.2 mm (
36
B-D
), 0.5 mm (
37A
), 0.2 mm (
37B
).