Annotated Checklist of California Encyrtidae (Hymenoptera) Author Zuparko, Robert L. text Zootaxa 2015 4017 1 1 126 journal article 39938 10.11646/zootaxa.4017.1.1 086efdb4-44cf-4c0b-a796-1eb81f2cdd24 1175-5326 245475 BBFC3D93-6A7E-4862-84EF-021ADE2F4B3A Prionomitus Mayr 1876 Hosts. Hemiptera : Psyllidae , Triozidae mitratus ( Dalman 1820: 352 ) ( Encyrtus ) Type . NHRS Distribution. W (Alameda, Butte, Contra Costa, El Dorado, Fresno, Inyo, Kern, Lassen, Los Angeles, Marin, Modoc, Mono, Monterey, Napa, Nevada, Placer, Plumas, Riverside, San Bernardino, San Diego, Santa Barbara, Sierra, Solano, Sonoma, Stanislaus, Tuolumne, Ventura, Yolo , Sequoia National Park) Host/habitat. Cacopsylla americana , C . bidens , C . crataegi , C . mali , C . sp. nr. media , C . melanoneura , C . peregrina , C . pyri , C . pyricola , C . ribesiae , Ceanothia essigi , C . insolita , Euglyptoneura fuscipennis , E . minuta , E . robusta , Livilla retamae , Pexopsylla cercocarpi , Psylla pyrisuga , Trioza beameri ; NEW : Arytaina sp. (EMEC), Psylla alni (UCRC), Psylla floccosa , P . sp. (EMEC), Remarks. This is a Holarctic species, reported from several psyllid species in the western United States ( Jensen 1957 ). Nevertheless, this species was imported from Switzerland into California in the 1960s in a biocontrol program against Cacopsylla pyricola ( Clausen 1978b ) . tiliaris ( Dalman 1820: 171 ) ( Encyrtus ) [ New state record ] (CAS, EMEC, LACM, RLZC, SBMN, UCDC, UCRC) Type . NHRS Distribution. W (Alameda, Contra Costa, El Dorado, Fresno, Glenn, Humboldt, Kern, Los Angeles, Marin, Monterey, Napa, Nevada, Placer, Plumas, Riverside, Sacramento, San Bernardino, San Luis Obispo, San Mateo, Santa Barbara, Santa Clara, Sierra, Solano, Sonoma, Stanislaus, Ventura) Host/habitat. Cacopsylla mali , C . melanoneura , C . peregrina , C . pyri , C . ulmi ; NEW : Cacopsylla tenuata (RLZC), Psylla sp. (EMEC) Remarks. This species has previously been reported only from the Palearctic Region. Peck (1963) noted it questionably occurred in the Nearctic Region, but this record appears to trace to Howard’s report of its presence in St. Vincent ( Riley et al. 1894 ), which apparently was based on a misidentification of Psyllaephagus rotundiformis (Howard) ( Noyes 1980 ) . This species has been present in the state since at least 1930, when two specimens were collected in Alameda County (UCRC).