Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Boisea rubrolineata - Western Boxelder Bug

Wall Bug - Boisea rubrolineata Western Box Elder Bug - Mating Pair - Boisea rubrolineata - male - female Western Boxelder Bug - Boisea rubrolineata Heteroptera id request - Boisea rubrolineata Unk. ova to bug - Boisea rubrolineata Lygaeidae - Boisea rubrolineata Western Boxelder Life Cycle - Eggs Stage 3 Nymph - Boisea rubrolineata # 117 - Boisea rubrolineata
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Pentatomomorpha
Superfamily Coreoidea (Leatherbugs)
Family Rhopalidae (Scentless Plant Bugs)
Subfamily Serinethinae (Soapberry Bugs)
Genus Boisea
Species rubrolineata (Western Boxelder Bug)
Synonyms and other taxonomic changes
=Leptocoris rubrolineatus Barber 1956
Identical to B. trivittata, except the veins of the corium are prominent and red-colored(1)
w. NA to BC-ID-CO-NM-CA(1)
Particularly noticeable in fall (often invade homes in search of shelter to hibernate) and in spring (when they emerge)
hosts: Acer grandifolium (Bigleaf Maple), A. negundo (Boxelder), A. saccharinum (Silver Maple), Koelreuteria paniculata (Goldenrain Tree), and Sapindus saponaria (Western Soapberry)(1)
Flowers and young seeds are preferred, so female trees often support larger populations; may also feed on foliage, on sap seeping from wounds on branches/trunks, and on fallen seeds. They will sometimes feed on trees of the Rose Family (Malus, Pyrus, Prunus, etc.) and cause minor damage to commercial fruit (rarely). They are recorded to feed on plants as diverse as Grass, Alfalfa, and Potatoes. It is even common to see them gathered and sucking fluids from other substances such as discarded human food, smashed insects, etc.
Life Cycle
Western Boxelder Bugs overwinter perhaps in all stages, but mostly as mature nymphs and adults. There may be one to several broods per season, depending upon the length of the growing season.

Here is an example of all the stages found in one area on the same day:
Internet References