Nicrophorus interruptus

Nicrophorus interruptus is a species of burying beetle or sexton beetle belonging to the family Silphidae subfamily Nicrophorinae.[1]

For the species misidentified by Gaspard Auguste Brullé in 1832 and again by Gistel in 1857, declared a new species under the name Nicrophorus basalis, but later corrected, see Nicrophorus vestigator.

Nicrophorus interruptus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Family: Silphidae
Genus: Nicrophorus
Species:
N. interruptus
Binomial name
Nicrophorus interruptus
Stephens, 1830
Synonyms

Subspecies

Subspecies include:[2]

  • Nicrophorus interruptus var. algiricus Pasquet, 1916
  • Nicrophorus interruptus var. brunnipes Gradl, 1882
  • Nicrophorus interruptus var. centrimaculatus Reitter, 1895
  • Nicrophorus interruptus var. nigricans Pasquet, 1916
  • Nicrophorus interruptus var. pasqueti Pic, 1917
  • Nicrophorus interruptus var. trimaculatus Gradl, 188
  • Nicrophorus interruptus var. trinotatus Reitter, 1911

Distribution

Nicrophorus interruptus is the rarest but widespread among the large red and black carrion beetles.[3] They are present in most of Europe, in the eastern Palearctic realm, in the Near East and in North Africa.[4]

Description
Lateral view

The adults grow up to 26 millimetres (1.0 in) long.[5] They are mostly black with two orange-red markings on the elytra and a yellow pubescence on protruding abdominal segments.[5] They are also characterized by the absence of hairs on the thorax and straight tibias on the hind legs.[5]

The front and posterior orange-red markings on the elytra are separated from one another at the suture. They have large club-like antennae equipped with black and reddish tips[5] containing chemoreceptors, capable of detecting a dead animal from a long way away.[5]

Biology
Nicrophorus interruptus, male. Mounted specimen

These beetles are scavengers, breeding and living off in rotten carcases.[5] In fact they bury the carcasses of small vertebrates such as birds and mice as a food source for their larvae.

In Nicrophorus interruptus both the male and female parents take care of the brood, quite rare behaviour among insects. The prospective parents begin to dig a hole below the carcass, forming the crypt, where the carcass will remain until the flesh has been completely consumed. Although the larvae are able to feed themselves, both parents also feed them by regurgitated liquid food.[6]

The adult beetles continue to protect the larvae, which take several days to mature.. The final-stage larvae migrate into the soil and pupate, transforming from small white larvae to fully formed adult beetles.[6]

Bibliography

References
  1. Catalogue of life
  2. Biolib
  3. Michael Darby The beetles of the Wylye Down National Nature Reserve Wiltshire Archaeological and Natural History Society. v.102(2009) Page 8
  4. Fauna europaea
  5. A Nature Observer's Scrapbook
  6. Erna Pukowski Ecological Investigation of Necrophorus F. Zeitschrift fur Morphologie und Oekologie der Tiere 27(3): 518-586. 1933
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