Isodromus Howard 1887

Zuparko, Robert L., 2015, Annotated Checklist of California Encyrtidae (Hymenoptera), Zootaxa 4017 (1), pp. 1-126 : 32-33

Isodromus Howard 1887

Hosts. Neuroptera : Chrysopidae , Hemerobiidae

iceryae Howard 1887: 488

Type. USNM

Distribution. W (Alameda, Contra Costa, Los Angeles, Marin, Napa, Orange, Riverside, San Bernardino, San Diego, San Luis Obispo, Santa Clara, Sonoma, Ventura)

Host/habitat. Ceraeochrysa cubana , C . lateralis, C . sanchezi, C. valida , Chrysoperla ploribunda , C. rufilabris , Leucochrysa floridana , Sympherobius angustus , Sympherobius californicus ; NEW: Chrysopa nigricornis ( EMEC)

Remarks. Icerya purchasi and Saissetia oleae were erroneously reported as hosts by several authors—these reports are attributable to parasitized Chrysopa larvae, which pupated within the hollow shell of a dead scale ( Clancy 1946 a). Similarly, I consider the host report of Coccus hesperidum ( De Santis & Monetti 2008) to be in error. Clancy (1946 a) also questioned the validity of hemerobiid host records, but noted that I. iceryae would reproduce on Eremochrysa punctinervis in the lab. A series of specimens was reared from galls of Heteroecus dasydactyli (Ashmead) ( Hymenoptera : Cynipidae ) in San Bernardino County ( UCRC). Harrisina brillans ( Lepidoptera : Zygaenidae ) is noted as the host for one specimen ( UCRC), but this is undoubtedly erroneous.

niger Ashmead 1900: 379

Type. USNM

Distribution. W (Alameda, Los Angeles, Santa Clara, Solano, Ventura)

Host/habitat. Chrysopa nigricornis , C . oculata, C . pallens, C. sp., Chrysoperla carnea , Sympherobius angustus , Hemerobiidae sp.

Remarks. Clancy (1946 a) considered the only valid host records for this species were for the two closely related species, Chrysopa nigricorns (= C. majuscula ) and C. oculata . Host records for Chilocorus similis and Lymantria dispar (Linnaeus) are clearly erroneous, while records for “ Chrysopa ” may equally refer to Chrysoperla .

puncticeps ( Howard 1885: 14) ( Encyrtus )

Type. USNM

Distribution. W (Stanislaus, Yolo) Host/habitat. Chrysopa sp.

spp.

Remarks. A specimen determined as “sp. nr. axillaris ” ( Timberlake 1919 c), was recorded from Chrysopa nigricornis in Contra Costa County ( EMEC), and what appear to be undescribed species near atriventris ( Ashmead 1900) were collected on aphid-infested Pinus sabiniana in Calaveras County and Liriodendron tulipifera ( Magnoliaceae ) in Stanislaus County (both RLZC).