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Information about the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


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Subfamily Dorcatominae

Another seed to ID tiny, narrow anobiid - Petalium Petalium Calymmaderus nitidus beetle - Calymmaderus punctulatus hairy puffball Puffball Beetle - Caenocara Dermestid? - Calymmaderus
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 Dorcatominae
Synonyms and other taxonomic changes
Mesocoelopodinae (Tricoryninae) is usually treated as a distinct subfamily, but evidence for that arrangement is rather weak
Explanation of Names
Dorcatominae C.G. Thomson 1859
Numbers
5 tribes, with 11 genera in our area and 45 genera total; the most species-rich subfamily in NA
Size
contains many small species; maximum size is ~4 mm
Identification
Body short, often +/- ball-like, or moderately elongate, rarely cylindrical (genus Petalium only). Antennae usually with three terminal segments enlarged and triangular, rarely rather parallel-sided, or branched. In two genera, the antennae are serrate, with the terminal segments unmodified (Mesocoelopus, Neosothes).

Antennae usually completely hidden in retraction, rarely last segments partly visible (genus Calymmaderus).
Legs retracted in grooves of the ventral surface, like in pill beetles (Byrrhidae).
Range
world-wide
Food
the group contains, besides wood-borers, many fungivores and species breeding in dry, non-woody plants