''Platycerus marginalis'' is a species of

stag beetle Stag beetles are a family of about 1,200 species of beetles in the family Lucanidae, currently classified in four subfamilies.Smith, A.B.T. (2006). A review of the family-group names for the superfamily Scarabaeoidea (Coleoptera) with corrections ...

, from the Lucinidae family and

Lucaninae The Lucaninae comprise the largest subfamily of the stag beetles (Lucanidae). Characteristics include partial to complete division of the eyes by a canthus, geniculate antennae, and distinctly separated coxae. The body is typically elongate ...

subfamily. It was discovered by Thomas Casey Jr. in 1897.

Geographical distribution

It can be found in

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

References

Beetles of North America Beetles described in 1897 Lucanidae Taxa named by Thomas Lincoln Casey Jr. {{Lucanidae-stub