Genus of beetles
| Pediacus |
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| Pediacus major |
Scientific classification  |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Cucujidae |
| Genus: | Pediacus
Shuckard, 1839 |
Pediacus is the largest genus in the family Cucujidae of flat bark beetles. It contains 31 currently recognized species.[1][2] Pediacus adults are relatively small (2.7-7.0mm), flattened brownish beetles with no or very small temples, and short antennae with a distinct club. Male genitalia are inverted and possess a short flagellum.
The genus is Holarctic in distribution, but extends south as far as Guatemala in the Western Hemisphere, generally at high altitudes, and into Australia in the Eastern Hemisphere. Adults and larvae are found under dead bark; frequently that of conifers in North America. They are thought to be predaceous. Most of the world fauna of Pediacus has been revised recently and the genus is relatively well-known taxonomically. Included species are:
- Pediacus dermestoides Fabricius
- Pediacus andrewsi Thomas
- Pediacus ater Grouvelle
- Pediacus australis Marris & Slipinski
- Pediacus bhutanicus Sen Gupta
- Pediacus carinatus Marris & Slipinski
- Pediacus confertus Sharp
- Pediacus depressus Herbst in Jablonsky
- Pediacus dermestoides (Fabricius, 1792)
- Pediacus elongatus Sen Gupta
- Pediacus fujianensis Marris & Slipinski
- Pediacus fuscus Erichson
- Pediacus gracilis Thomas
- Pediacus hesperoglaber Thomas
- Pediacus japonicus Reitter
- Pediacus kurosawai Sasaji
- Pediacus leei Marris & Ślipiński
- Pediacus major Sharp
- Pediacus mexicanus Sharp
- Pediacus montivagus Champion
- Pediacus ommatodon Thomas
- Pediacus pendleburyi Marris & Ślipiński
- Pediacus rufipes Grouvelle
- Pediacus similis Sharp
- Pediacus sinensis Marris & Ślipiński
- Pediacus smirnovi Nikitsky & Belov
- Pediacus stephani Thomas
- Pediacus subglaber LeConte
- Pediacus tabellatus Wollaston
- Pediacus taiwanensis Marris & Ślipiński
- Pediacus thomasi Marris & Ślipiński
In addition to the extant species, a single fossil species, Pediacus periclitans Scudder, has been described from the Eocene deposits at Florissant, Colorado. Its assignment to Pediacus has been questioned.
References
- ^ John W. M. Marris and Adam Ślipiński. 2014. A revision of the Pediacus Shuckard 1839 (Coleoptera: Cucujidae) of Asia and Australasia. Zootaxa 3754(1): 32-58.
- ^ Michael C. Thomas. 2004. A revision of Pediacus Shuckard (Coleoptera: Cucujidae) for America north of Mexico, with notes on other species. Insecta Mundi 17: 157-177 (2003).
Extant Coleoptera families
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- Crowsoniellidae (Crowsoniella relicta)
- Cupedidae (reticulated beetles)
- Jurodidae (Sikhotealinia zhiltzovae)
- Micromalthidae
- Ommatidae
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| Extant families | - Amphizoidae (trout-stream beetles)
- Aspidytidae
- Carabidae (ground beetles)
- Cicindelidae (tiger beetles)
- Dytiscidae (predaceous diving beetles)
- Gyrinidae (whirligig beetles)
- Haliplidae (crawling water beetles)
- Hygrobiidae
- Meruidae (Meru phyllisae)
- Noteridae (burrowing water beetles)
- Trachypachidae (false ground beetles)
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| Bostrichiformia | | Bostrichoidea | - Bostrichidae (auger beetles)
- Dermestidae (skin beetles)
- Endecatomidae
- Jacobsoniidae (Jacobson's beetles)
- Nosodendridae (wounded-tree beetles)
- Ptiniidae (furniture beetles, death watch beetles, spider beetles)
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| Derodontoidea | - Derodontidae (tooth-necked fungus beetles)
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| Cucujiformia | | Chrysomeloidea | |
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| Cleroidea | |
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| Coccinelloidea | |
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| Cucujoidea | |
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Curculionoidea
(weevils) | - Anthribidae (fungus weevils)
- Attelabidae (leaf-rolling weevils)
- Belidae (primitive weevils)
- Brentidae (straight snout weevils, New York weevil)
- Caridae
- Curculionidae (true weevils, bark beetles, ambrosia beetles)
- Nemonychidae (pine flower weevils)
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| Lymexyloidea | - Lymexylidae (ship-timber beetles)
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| Tenebrionoidea | - Aderidae (ant-like leaf beetles)
- Anthicidae (ant-like flower beetles)
- Archeocrypticidae (cryptic fungus beetles)
- Boridae (conifer bark beetles)
- Chalcodryidae
- Ciidae (minute tree-fungus beetles)
- Melandryidae (false darkling beetles)
- Meloidae (blister beetles)
- Mordellidae (tumbling flower beetles)
- Mycetophagidae (hairy fungus beetles)
- Mycteridae (palm and flower beetles)
- Oedemeridae (false blister beetle)
- Perimylopidae, or Promecheilidae
- Prostomidae (jugular-horned beetles)
- Pterogeniidae
- Pyrochroidae (fire-coloured beetles)
- Pythidae (dead log bark beetles)
- Ripiphoridae (wedge-shaped beetles)
- Salpingidae (narrow-waisted bark beetles)
- Scraptiidae (false flower beetles)
- Stenotrachelidae (false longhorn beetles)
- Synchroidae (synchroa bark beetles)
- Tenebrionidae (darkling beetles)
- Tetratomidae (polypore fungus beetles)
- Trictenotomidae
- Ulodidae
- Zopheridae (ironclad beetles, cylindrical bark beetles)
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| Elateriformia | | Buprestoidea | - Buprestidae (jewel beetles, or metallic wood-boring beetles)
- Schizopodidae
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| Byrrhoidea | - Byrrhidae (pill beetles)
- Callirhipidae (cedar beetles)
- Chelonariidae (turtle beetles)
- Cneoglossidae
- Dryopidae (long-toed water beetles)
- Elmidae (riffle beetles)
- Eulichadidae (forest stream beetles)
- Heteroceridae (variegated mud-loving beetles)
- Limnichidae (minute mud beetles)
- Lutrochidae (travertine beetles)
- Psephenidae (water-penny beetles)
- Ptilodactylidae
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| Dascilloidea | - Dascillidae (soft bodied plant beetles)
- Rhipiceridae (cicada beetle, cicada parasite beetles)
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| Elateroidea | - Artematopodidae (soft-bodied plant beetles)
- Brachypsectridae (Texas beetles)
- Cantharidae (soldier beetles)
- Cerophytidae (rare click beetles)
- Elateridae (click beetles)
- Eucnemidae (false click beetles)
- Jurasaidae
- Lampyridae (fireflies)
- Lycidae (net-winged beetles)
- Omethidae (false fireflies, long-lipped beetles)
- Phengodidae (glowworm beetles)
- Rhagophthalmidae
- Sinopyrophoridae
- Throscidae (false metallic wood-boring beetles)
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| Rhinorhipoidea | - Rhinorhipidae (Rhinorhipus tamborinensis)
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| Scirtoidea | |
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| Scarabaeiformia | | Scarabaeoidea | - Belohinidae (Belohina inexpectata)
- Bolboceratidae
- Diphyllostomatidae (false stag beetles)
- Geotrupidae (dor beetles)
- Glaphyridae (bumble bee scarab beetles)
- Glaresidae (enigmatic scarab beetles)
- Hybosoridae (scavenger scarab beetles)
- Lucanidae (stag beetles)
- Ochodaeidae (sand-loving scarab beetles)
- Passalidae (betsy beetles)
- Pleocomidae (rain beetles)
- Scarabaeidae (scarabs)
- Trogidae (hide beetles)
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| Staphyliniformia | |
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Taxon identifiers |
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| Pediacus | |
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