''Episernus'' is a genus of
beetle
Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 describ ...
[
"Genus Episernus - BugGuide.Net", BugGuide.net, web:
]
BG-412
ranging in
Holarctic
The Holarctic realm is a biogeographic realm that comprises the majority of habitats found throughout the continents in the Northern Hemisphere. It corresponds to the floristic Boreal Kingdom. It includes both the Nearctic zoogeographical region ...
, of western distribution in North America, including the
Palearctic
The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa.
The realm consists of several bioregions: the Euro-Sibe ...
and the
Nearctic
The Nearctic realm is one of the eight biogeographic realms constituting the Earth's land surface.
The Nearctic realm covers most of North America, including Greenland, Central Florida, and the highlands of Mexico. The parts of North America t ...
. ''Episernus'' is similar to ''
Ernobius
''Ernobius'' is a genus of beetles in the family Ptinidae. There are about 90 species. Most occur in North America, Europe, and North Africa.Arango, R. A. (2009)A new species of Nearctic ''Ernobius'' Thomson (Coleoptera: Ptinidae: Ernobiinae) from ...
'', but the side margin of the
pronotum
The prothorax is the foremost of the three segments in the thorax of an insect, and bears the first pair of legs. Its principal sclerites (exoskeletal plates) are the pronotum (dorsal), the prosternum (ventral), and the propleuron (lateral) on ea ...
in the anterior part is effaced, and the antennae are 10-segmented.
[ They consume ]conifers
Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class, Pinopsida. All extan ...
. For males, the body is more slender. In females, the antennae are shorter.[
]
Selected species
*
*
*
*
*
*
*
*
*
*
*
*
*
References
External links
''Episernus'' at Fauna Europaea
{{Taxonbar, from=Q4038155
Ptinidae
Bostrichiformia genera