Ooencyrtus californicus Girault, 1917

Triapitsyn, Serguei V., Rugman-Jones, Paul F. & Perring, Thomas M., 2021, Re-collection and identity of Ooencyrtus californicus (Hymenoptera: Encyrtidae) and its new synonym, Ooencyrtus lucidus, Zootaxa 4966 (1), pp. 97-100 : 98-100

Ooencyrtus californicus Girault, 1917

( Figs 1–3 )

Ooencyrtus californicus Girault 1917: 22 . Type locality: Sacramento, Sacramento County, California, USA. Lectotype female [USNM], designated by Triapitsyn et al. 2020: 68–70, examined.

Ooencyrtus lucidus Triapitsyn & Ganjisaffar in Triapitsyn et al. 2020: 63–69. Type locality: Riverside (from laboratory colony at the University of California, Riverside , of campus Agricultural Operations origin), Riverside County, California, USA. Holotype female [UCRC], examined. Syn. n.

Ooencyrtus californicus Girault : Noyes 2010: 401–402 (diagnosis, hosts, distribution), 726, 780–781 (illustrations); Triapitsyn et al. 2020: 65 (diagnosis), 68–71 (lectotype designation, illustrations of the original syntypes, discussion, distribution).

Ooencyrtus lucidus Triapitsyn & Ganjisaffar : Ganjisaffar & Perring 2020: 2–10 (life history traits, host association).

Material examined. USA: Arizona, Cochise County, Portal, American Museum of Natural History Southwestern Research Station : 31.88175°N 109.20905°W, 1670 m, 27.vii.2019, F . Gómez Marco, M. S . Hoddle, D. A . Yanega, canopy fogging of Juniperus deppeana tree [3 ♀, UCRC, including molecular voucher PR20-561 ( UCRC _ ENT 00528707 )]; 31.88154°N 109.20997°W, 1674 m, 29.vii.2019, F . Gómez Marco, M. S . Hoddle, D. A . Yanega, canopy fogging of Juniperus deppeana tree [1 ♀, UCRC]; 31.88030°N 109.20866°W, 1670 m, 2.viii.2019, F . Gómez Marco, D. A . Yanega, canopy fogging of Quercus arizonica tree [2 ♀, UCRC]; 31.89199°N 109.20943°W, 1704 m, 5.viii.2019, F . Gómez Marco, S. V . Triapitsyn, D. A . Yanega, canopy fogging of Quercus arizonica tree [2 ♀, UCRC] . California: Solano County, near Winters, University of California Davis Wolfskill Terra Firma Farms, 30.vi.2017, J . D. Hernández, from Bagrada hilaris foliar sentinel eggs on card [1 ♀, USNM]. Tuolumne County, roadside of Hwy. 49/120 near Don Pedro Reservoir , 37°50’42’’N 120°22’58’’W, 276–283 m, 13.x.2020, S. V . Triapitsyn, sweeping on Pinus sabiniana trees [3 ♀, UCRC, including molecular vouchers PR20-465 ( UCRC _ ENT 00541250 ) and PR20-560 ( UCRC _ ENT 00541267 )]. Yolo County, Davis, University of California Davis Armstrong Farms, 38.52182°N 121.75937°W, 14 m, 5.ix.2017, I . Grettenberger, from Bagrada hilaris foliar sentinel eggs [1 ♀, USNM, molecular voucher USNMENT918558_214413927] .

Updated diagnosis. FEMALE. As described and illustrated for O. lucidus in Triapitsyn et al. (2020) except as follows: antenna with scape minus radicle 5.7–8.8× as long as wide; first funicular segment 1.5–2.0× as long as wide and 0.5–0.6× length of pedicel.

MALE. As described and illustrated for O. lucidus in Triapitsyn et al. (2020).

Distribution. Nearctic region: USA: Arizona (new record), California ( Girault 1917; Triapitsyn et al. 2020 [as O. lucidus ]), Texas ( Noyes 2010; Triapitsyn et al. 2020 [as O. lucidus ]), and Washington ( Johansen 1957; Peck 1963; Noyes 2010); Neotropical region: Costa Rica ( Noyes 2010).

Hosts. Confirmed and otherwise more or less trustworthy records of O. californicus are from eggs of Hemiptera : Anasa tristis (De Geer) (Coreidae) ( Peck 1963; Noyes 2010), Bagrada hilaris (Burmeister) ( Triapitsyn et al. 2020 [for O. lucidus ]), Chinavia hilaris (Say) ( Triapitsyn et al. 2020 [for O. lucidus ]), Chlorochroa sayi (Stål) ( Noyes 2010; Triapitsyn et al. 2020 [for O. lucidus ]), and Nezara viridula (L.) ( Ehler 2002; Noyes 2010) ( Pentatomidae ), as well as from unidentified bug eggs ( Girault 1917).

Biology. Life history traits of O. californicus (as O. lucidus ) were reported by Ganjisaffar & Perring (2020).

Remarks. The ITS2 sequences of specimens PR20-465 and PR20-560 of O. californicus from Tuolumne County in California, collected on Pinus sabiniana (GenBank accessions MW804270 and MW804271 , respectively), were 100% identical to that of the specimen PR20-561 from Arizona (GenBank accession MW804272 ) and also to those of the O. lucidus paratypes (UCRC ENT 311756, 311757, 311769, and 311770) which are molecular vouchers from the study by Triapitsyn et al. (2020) (GenBank accessions MN947512 –515). Together with a maximum divergence of 0.8% in the COI sequences among specimens PR20-465, PR20-560, PR20-561 (GenBank accessions MW804625 –627) and the paratypes of O. lucidus (GenBank accessions MN935769 –772), this is a very strong indication of conspecificity. Specimen USN- MENT918558_214413927 from Davis, California, also was genetically identical to O. lucidus (S.A. Andreason, personal communication).

Figures

FIGURES 1–3. Ooencyrtus californicus, females (from Pinus sabiniana at roadside of Hwy. 49/120 near Don Pedro Reservoir, 37°50′42′′N 120°22′58′′W, Tuolumne County, California, USA): 1, habitus in lateral view; 2, 3, antennae.