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Genus Tricorynus

Anobiid - Tricorynus Tricorynus sp. - Tricorynus Tricorynus sp. - Tricorynus Anobiid (?) - Tricorynus Byrrhodes? - Tricorynus Ptinidae, frontal - Tricorynus Tricorynus Beetle - Tricorynus dichrous
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
Superfamily Bostrichoidea (Carpet, Powder-post and Death-watch Beetles)
Family Ptinidae (Death-watch and Spider Beetles)
Subfamily Mesocoelopodinae
Tribe Tricorynini
Genus Tricorynus
Synonyms and other taxonomic changes
Catorama Guérin-Méneville 1850, Hemiptychus LeConte 1865, Cathorama Gemminger & Harold 1869, Xylotheca Reitter 1897
Explanation of Names
Tricorynus Waterhouse 1849
name alludes to the 3-segmented antennal club
Numbers
84 spp. (and 5 sspp.) in our area(1), >30 more described spp. in the neotropics
Size
1.5-6 mm
Identification
Mesosternum between mesocoxae produced into a hump or hook (diagnostic); antennae 10-segmented; pubescence of the body fine and recumbent; prothoracic tibiae almost always striate.
for species identification, see(2); add'l sp. described in(3)
key to WI spp. in(1)
Species tend to be variable, and very hard to key out using existing literature. Further work is needed to resolve species limits.
Range
New World; many neotropical spp., mostly undescribed; a few spp. have been spread by commerce over (sub)tropical regions of the world, at least one naturalized in so. Africa
Food
Diverse: apparently mostly plant seeds, also galls, dead stems/twigs, fungi, and stored products (e.g. T. herbarius)(1)
Works Cited
1.Death-watch and spider beetles of Wisconsin—Coleoptera: Ptinidae
Arango, R.A. and D.K. Young. 2012. General Technical Report FPL-GTR-209. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory.
2.A revision of the genus Tricorynus of North America (Coleoptera: Anobiidae)
White R.E. 1965. Misc. publ. Ent. Soc. Am. 4: 283-368.
3.Three new species of Anobiidae from southwestern United States and northwestern Mexico (Coleoptera)
White R.E. 1981. Proc. Ent. Soc. Wash. 83: 472-278.