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Subfamily Prioninae

Large black beetle protruding striped abdomen - Prionus laticollis Brown Prionid - Orthosoma brunneum - male Trichocnemis spiculatus? and unid. egg cluster - Trichocnemis - female Prionus imbricornis on its back.  - Prionus imbricornis Prioninae Tragosoma harrisii - female Ground Beetle with Purple Eye Reflections - Prionus laticollis Tragosoma harrisii
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)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Cerambycidae (Long-horned Beetles)
Subfamily Prioninae
Explanation of Names
Prioninae Latreille 1802
Numbers
37 spp. in 13 genera of 5 tribes in our area; >350 spp. in ~100 genera of 9 tribes in the New World(1); 20 tribes worldwide(2)
Size
our spp. 25-70 mm; world's largest beetles are members of this subfamily
Identification
Large, robust, usually brown to black; antennae long, prominent, sometimes flattened. Often sexually dimorphic; males having large, strong jaws (presumably used in intraspecific fights).(3)
Revisions/keys:(4)(5)
Range
by far more diverse in the tropics (in our area, in so. US) but a few spp. range far north(1)
Habitat
Larvae usually in rotting wood, often wood in contact with soil (roots/stumps)
Remarks
adults nocturnal, come to lights; tree-associated species often have gregarious larvae(3)
Works Cited
1.New World Cerambycidae Catalog
2.Family-group names in Coleoptera (Insecta)
Bouchard P. et al. 2011. ZooKeys 88: 1–972.
3.Field Guide to Northeastern Longhorned Beetles (Coleoptera: Cerambycidae)
Douglas Yanega. 1996. Illinois Natural History Survey.
4.Illustrated revision of the Cerambycidae of North America. Vol. I, Subfamilies Parandrinae, Spondylidinae, Aseminae, Prioninae
Chemsak A.J. 1996. Wolfsgarden Press, Burbank, ix+150pp., 10 pls.
5.The Cerambycidae of North America. Part II. Taxonomy and classification of the Parandrinae, Prioninae, Spondylinae, and Aseminae
Linsley E.G. 1962. University of California Publications in Entomology 19: 1-102, 1 pl.