Beetle - Nicrophorus Investigator Taken at Langdale on July 13th 2008 using Nikon Coolpix with Nikon 300 mm zoom lens. Beetle - Nicrophorus Investigator. Species: Order: Family: A.K.A. Nicrophorus Investigator Coleoptera. Silphidae Banded Sexton Beetle Burying Beetle Habitat: Body Length: Feature: Flies/Found: Wide range throughout Britain. Up to 25 mm This group of beetles are often referred to as burying beetles because they lay their eggs in the soil close to the dead bodies of small mammals and birds which they bury by excavating the soil from around and beneath the corpse so that it slowly sinks into the ground. May - September.