title: New records of nematomorph parasites (Nematomorpha: Gordiida) of ground beetles (Coleoptera: Carabidae) and camel crickets (Orthoptera: Rhaphidophoridae) in Washington State.
abstract: From 1998 to 2003, beetles and crickets infected with hairworms were collected from 4 localities within the Hanford Nuclear Site and the Hanford Reach National Monument, located in a shrub-steppe region of Washington State along the Columbia River. Infected hosts comprised 6 species of carabid beetles within 5 genera and 2 camel crickets within 1 genus; all are newly documented insect-nematomorph associations. A large proportion of the infected hosts (48%) were collected from a single site during a single collecting period. Of the 38 infected hosts, 32 contained a single worm, 4 hosts contained 2 worms, and 2 hosts contained 3 worms. Five of the hosts with multiple infections contained at least 1 male and 1 female worm. Camel crickets were infected with Neochordodes occidentalis while carabids were infected with an undescribed species of Gordionus . As the majority of hairworms are collected in the post-parasitic adult phase, host data and hairworm-arthropod associations remain poorly documented and our work adds new data to this area of nematomorph biology.
authors.affiliation: Washington State Department of Agriculture, P.O. Box 42560, Olympia, Washington 98504, USA. clooney@agr.wa.gov
authors.forename: Chris
authors.initials: C
authors.lastname: Looney
authors.forename: Ben
authors.initials: B
authors.lastname: Hanelt
authors.forename: Richard S
authors.initials: RS
authors.lastname: Zack
mesh_terms: D000818:Animals; D019306:Artemisia; D001517:Coleoptera / Q000469:parasitology*; D017753:Ecosystem; D005260:Female; D005618:Fresh Water; D006135:Gryllidae / Q000469:parasitology*; D006376:Helminths / Q000145:classification* / Q000502:physiology; D008297:Male; D012822:Silicon Dioxide; D014861:Washington
chemical_list: D012822:Silicon Dioxide