Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of 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


Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Subfamily Lyctinae - Powder-post Beetles

elongate big-eyed prognathous beetle - Trogoxylon parallelipipedum Trogoxylon aequale (Wollaston) - Trogoxylon aequale Trogoxylon punctatum another small brown beetle - Trogoxylon parallelipipedum Trogoxylon parallelipipedum OC beetle - Lyctus Lyctinae? Backyard #599 - Trogoxylon parallelipipedum
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 Bostrichidae (Horned Powder-post Beetles)
Subfamily Lyctinae (Powder-post Beetles)
Synonyms and other taxonomic changes
formerly treated as separate family [e.g., in (1)]
Explanation of Names
Lyctinae Billberg 1820
powder-post beetles refer to the propensity of the larvae to reduce sapwood into a powdery frass(1)
Numbers
2 tribes, with almost a dozen spp. in 3 genera in our area (+several regularly intercepted spp.)(2) and ~70 spp. in 12 genera worldwide(3)
Identification
Keys to New World spp. in(1)
Range
worldwide (easily spread with commerce), more diverse in the tropics(1)
Food
larva feeds mainly on the sapwood of hardwoods; species are polyphagous(1)
Remarks
"The destructiveness of lyctid beetles to wood and wood products is second only to that of termites."(1)
Works Cited
1.A revision of the New World species of powder-post beetles belonging to the family Lyctidae.
Gerberg, E.J. 1957. USDA Technical Bulletin 1157: 1–55.
2.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
3.World catalogue of Bostrichidae (Coleoptera)
Borowski J., Węgrzynowicz P. 2007. Mantis, Olsztyn, 247 pp.