Darkling beetle

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Darkling beetle
Temporal range: Late Jurassic–Recent
Alphitobius sp. (Tenebrioninae: Alphitobiini)
Scale bar (top right) is 2 mm
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Infraorder: Cucujiformia
Superfamily: Tenebrionoidea
Family: Tenebrionidae
Latreille, 1802
Subfamilies

See text

Synonyms

Alleculidae

Darkling beetle is the common name for members of the beetle family Tenebrionidae, comprising over 20,000 species in a cosmopolitan distribution.

Taxonomy

Tenebrio is the Latin generic name that Carl Linnaeus assigned to some flour beetles in his 10th edition of Systema Naturae 1758-59.[1] The name means "lover of darkness";[2] the English language term 'darkling' means "characterised by darkness or obscurity";[3] see also English 'tenebrous', figuratively "obscure, gloomy."[4]

Many Tenebrionidae species inhabit dark places; in

genera
such as Stenocara and Onymacris, they are active by day and inactive at night.

The family covers a varied range of forms, such that classification presents great difficulties. These eleven subfamilies were listed in the 2021 review by Bouchard, Bousquet, et al., updating a similar catalog from 2005.[5][6]

Ongoing phylogenetic studies are showing that some taxonomic changes are needed. For instance the tribal classification of tribe Pedinini has recently been altered.[7]

The misspelling "Terebrionidae" occurs frequently enough to be easily overlooked.[8][9] The error appears to have no particular significance, but to be the product of misreadings, mis-scans and mis-typings.

Tenebrionidae head

The oldest known member of the family is Jurallecula from the Late Jurassic Karabastau Formation of Kazakhstan, assigned to the subfamily Alleculinae.

Characteristics

The Tenebrionidae may be identified by a combination of features, including:

  • Their eleven-segmented antennae that may be filiform, moniliform or weakly clubbed
  • First abdominal
    coxae
  • Eyes notched by a frontal ridge
  • Four segments in the hind pair of tarsi and five in the fore and mid-legs (5-5-4), with simple claws

Biology and ecology

Tenebrionid beetles occupy

T. molitor, often rarely do so.[11][12][13]

A tenebrionid larva (Eleodes sp.)

The

mammals. Adults of many species have chemical defenses and are relatively protected against predators.[12]
Adults of most species, except grain pests, have slow metabolisms, and live long lives compared to other insects, ranging from approximately six months to two years.

Namib, and have evolved adaptions by which they collect droplets of fog that deposit on their elytra. As the droplets accumulate the water drains down the beetles' backs to their mouthparts, where they swallow it.[14]

Humans spread some species such that they have become cosmopolitan, such as

Tribolium castaneum
, the red flour beetle, which was spread through grain products.

Notable types

The

feeder insects for captive insectivores
or as laboratory subjects:

Further information: Luprops tristis

Gallery

References

  1. ^ Linnaeus, Carl (1759). "Caroli Linnæi ... Animalium specierum in classes, ordines, genera, species, methodica dispositio ." (in Latin). Leiden: Theodor Haak. p. 134.
  2. ISBN 0398009163
    .
  3. ISBN 0198612710
    .
  4. ISBN 978-0-19-861116-5
    .
  5. ^ Bouchard, Patrice; Bousquet, Yves; Aalbu, Rolf L.; Alonso-Zarazaga, Miguel A.; et al. (2021). "Review of genus-group names in the family Tenebrionidae (Insecta, Coleoptera)". ZooKeys (1050): 1–633.
    PMID 34385881
    .
  6. ^ Bouchard, Patrice; Lawrence, John F.; Davies, Anthony E.; Newton, Alfred F. (2005) "Synoptic Classification of the World Tenebrionidae (Insecta: Coleoptera) with a Review of Family-Group Names". Annales Zoologici (Warszawa), 55(4): 499–530.
  7. doi:10.1093/zoolinnean/zly033
    .
  8. ISBN 978-0412498008
    .
  9. ^ "Egyptian Beetle (Blaps polychresta) - by Graeme Ruck - JungleDragon". www.jungledragon.com. Retrieved 2023-02-02.
  10. ^ "Species Bolitotherus cornutus – Forked Fungus Beetle".
  11. YouTube
  12. ^ a b "Family Tenebrionidae - Darkling Beetles". bugguide.net. Retrieved 2023-02-02.
  13. ^ "Bolitotherus cornutus". Archived from the original on 2016-03-04. Retrieved 2015-08-14.
  14. ^ "Desert beetles inspire aircraft design that doesn't freeze". ZME Science. 2016-01-25. Retrieved 2016-01-27.
  15. ^ Alphitobius diaperinus, lesser mealworm. University of Florida IFAS

External links

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