Liometopum luctuosum
Consequently , their importance as structural pests may be greatly under reported , especially in California , Oregon , and Washington , United States . 
<triplet> California <subj> United States <obj> located in the administrative territorial entity <triplet> Oregon <subj> United States <obj> located in the administrative territorial entity <triplet> Washington <subj> United States <obj> country <triplet> United States <subj> California <obj> contains administrative territorial entity <subj> Oregon <obj> contains administrative territorial entity <subj> Washington <obj> contains administrative territorial entity