Bostrichoidea

Latreille, 1802

Carpet, Powderpost, and Deathwatch Beetles

Family Guides

4

is a superfamily of beetles within the infraorder Bostrichiformia. It encompasses several including Bostrichidae (powder-post and horned beetles), Dermestidae (carpet beetles), Endecatomidae, and Ptinidae (death-watch and spider beetles). Members are predominantly associated with dry and exhibit diverse ecological roles ranging from wood-boring to scavenging on dried organic matter. The superfamily is united by modified cryptonephridism, male structure, and larval mandibular lacking a basal mola.

Damaeus by (c) Alexis Tinker-Tsavalas, some rights reserved (CC BY), uploaded by Alexis Tinker-Tsavalas. Used under a CC-BY license.Epidermoptidae by (c) Cricket Raspet, some rights reserved (CC BY), uploaded by Cricket Raspet. Used under a CC-BY license.Psoroptidae by (c) Oleksii Vasyliuk, some rights reserved (CC BY), uploaded by Oleksii Vasyliuk. Used under a CC-BY license.

Pronunciation

How to pronounce Bostrichoidea: //bɒs.trɪˈkɔɪ.diə//

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Habitat

generally inhabit dry environments. Many Bostrichidae are wood-borers, with some attacking monocotyledonous plants. Ptinidae larvae typically bore into wood, though some species develop in other dry plant or animal materials including stored foods, tobacco, and museum specimens. Dermestidae occupy diverse dry where dried organic matter accumulates.

Distribution

Members of have worldwide distribution. Documented occurrences include: Iran (31 across 4 ), Sri Lanka (Ptinidae including introduced pest species), Eastern United States (diverse bostrichid fauna associated with mites), and Brazil (Ptininae larvae observed under bark). The superfamily's constituent show varying geographic ranges with some species being pests of stored products.

Diet

Feeding habits vary by . Bostrichidae primarily consume wood, with some feeding on monocotyledonous plants; Rhyzopertha dominica feeds on stored grains and cereal products. Ptinidae larvae are predominantly wood-borers, though some species utilize other dry plant or animal materials including stored foods and tobacco. Dermestidae are typically scavengers on dried organic matter with high protein content; some species are or feed on pollen and nectar.

Host Associations

Ecological Role

Wood-boring members contribute to decomposition of dead wood and nutrient cycling in forest . Some serve as for specialized mite (Winterschmidtiidae). Pest species in stored product and museum contexts represent significant economic and cultural heritage impacts.

Human Relevance

Several are significant pests. Bostrichidae damage timber, wooden structures, and stored grain products. Ptinidae infest stored food products, tobacco, and museum collections including books, paper, and palm-leaf manuscripts. Dermestidae damage wool, fur, feathers, and museum specimens. The superfamily includes some of the most destructive pests of libraries, archives, and museums in tropical regions.

Similar Taxa

  • StaphylinoideaBoth superfamilies within Polyphaga include diverse lineages with some wood-associated ; distinguished by larval and structure
  • CucujoideaShares infraorder Bostrichiformia; distinguished by modified cryptonephridism and larval mandibular characters

More Details

Taxonomic composition

includes three widely recognized : Bostrichidae (with Bostrichinae, Dinoderinae, Dysidinae, Euderiinae, Lyctinae, Polycaoninae, and Psoinae), Dermestidae (subfamilies Attageninae, Dermestinae, Megatominae, Orphilinae, Thorictinae, and Trinodinae), Endecatomidae, and Ptinidae (formerly Anobiidae, with subfamilies Alvarenganiellinae, Anobiinae, Dorcatominae, Dryophilinae, Ernobiinae, Eucradinae, Mesocoelopodinae, Ptilininae, Ptininae, and Xyletininae).

Mite associations

Bostrichid beetles specialized deutonymphs of Winterschmidtiidae mites. Two new , Bostrichiella and Xylacarus, have been described from Xylobiops basilaris, Amphicerus bicaudatus, and A. cornutus in the Eastern United States, indicating complex phoretic or parasitic relationships between these beetles and astigmatid mites.

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