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

Information, insects and people from 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


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Xylobiops basilaris - Red-shouldered Bostrichid

Red-shouldered Bostrichid - Xylobiops basilaris Red-shouldered Bostrichid - Xylobiops basilaris Beetle - Xylobiops basilaris Redbud Beetle - Xylobiops basilaris Neat beetle, species? - Xylobiops basilaris Xylobiops basilaris ? - Xylobiops basilaris Bark Beetle - Xylobiops basilaris Bostrichid - Xylobiops basilaris
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 Bostrichinae
Tribe Xyloperthini
Genus Xylobiops
Species basilaris (Red-shouldered Bostrichid)
Explanation of Names
Xylobiops basilaris (Say 1823)
Size
4-7 mm
Identification
elytra with large dull reddish spots at base and with three conspicuous teeth on each side at posterior end(1)
Range
e. NA (QC-FL to ON-IA-TX)(2)(3)(BG data)
Habitat
Deciduous forests
Food
hosts: wide variety of hardwoods, favors hickories (Carya) and persimmon (Diospyros virginiana); larvae feed mostly in sapwood and to some extent in heartwood, adults often bore into healthy twigs for food and shelter (3)
Life Cycle
Adults bore into the sapwood across the grain just under the bark surface in sapwood. Tunnels may girdle limbs and trunks of small diameter. Eggs are deposited at intervals along the sides of tunnels. Larvae bore along the grain. They spend winter in galleries, mostly as mature larvae, but sometimes as pupae or adults. Adults commonly spend the fall, winter, and spring in galleries within twigs and branches. A generation can develop in 1 year under optimum conditions, but sometimes takes longer. (3)
Works Cited
1.A Manual of Common Beetles of Eastern North America
Dillon, Elizabeth S., and Dillon, Lawrence. 1961. Row, Peterson, and Company.
2.Checklist of beetles (Coleoptera) of Canada and Alaska. Second edition
Bousquet Y., Bouchard P., Davies A.E., Sikes D.S. 2013. ZooKeys 360: 1–402.
3.Guide to insect borers in North American broadleaf trees and shrubs
Solomon, J.D. 1995. USDA Forest Service Agriculture Handbook. 735 pp.