Oobius Trjapitzin 1963

Hosts. Coleoptera: Buprestidae, Cerambycidae; Diptera: Asilidae

buprestidis Gordh & Trjapitzin 1981: 7 (Avetianella) [New state record](EMEC, RLZC, UCF) Type. USNM

Distribution. N (Contra Costa, El Dorado, Lassen, Los Angeles, Tuolumne) Host/habitat. Buprestus aurulentus

Remarks. This species was previously known from only one site in Oregon (Gordh & Trjapitsin 1981).

dahlsteni (Trjapitzin 1971): 507 ( Avetianella)

Type. CAS

Distribution. C (El Dorado, Madera, Siskiyou)

Host/habitat. The host is unknown, but specimens were collected in bark beetle traps on Pinus lambertina .

longoi (Siscaro 1992): 206 ( Avetianella)

Type. IAEC

Distribution. E (Riverside, San Diego)

Host/habitat. Coptocercus aberrans, Epithora dorsalis, Phoracantha semipunctata

Remarks. Imported from Australia in a biocontrol program directed against P. semipunctata . This species was released from 1993–1995 in San Diego, Riverside, Orange, Los Angeles, San Bernardino, Santa Barbara, Fresno & Santa Clara counties; it established immediately at several sites, and became an effective natural enemy of the beetle (Hanks et al. 1996).

nearctica (Trjapitzin 1977): 160 ( Szelenyiola)

Type. EMEC

Distribution. C (El Dorado)

Host/habitat. Unknown

Remarks. According to the original description, the holotype was to be deposited at EMEC, but instead it was placed at the USNM. In 2010 the specimen was indeed placed in the EMEC.

spp.

Remarks. Gordh (1979) reported two undetermined species from California (one under the genus Avetianella). Specimens that may represent six undescribed species were collected in Alpine, Contra Costa, Imperial, Marin, Nevada, Riverside, San Bernardino, Santa Clara, Shasta, Solano, Tuolumne and Ventura counties (EMEC, LACM, RLZC, UCFC, UCDC, UCRC).