Euseius ovaloides (Blommers)

Kreiter, Serge, Bopp, Marie-Charlotte, Douin, Martial, Nguyen, Duc Tung & Wyckhuys, Kris, 2020, Phytoseiidae of Vietnam (Acari: Mesostigmata) with description of a new species, Acarologia 60 (1), pp. 75-110 : 96-97

Euseius ovaloides (Blommers)

Amblyseius (Amblyseius) ovaloides Blommers 1974: 147 .

Euseius ovaloides Moraes et al. 1986: 51 ; 2004b: 78; Chant & McMurtry 2005a: 215; 2007: 121.

Specimens examined: Muoi in P6 plot (aasl 66 m, lat. 21°54’55” N, long. 104°38’22” E), 1 ♀ + 1 ♂ (in too bad state for doing measurements) on Vernicia montana (Euphorbiaceae) , 20/VII/2017.

Remarks: All measurements obtained on the single female specimen collected during this study agree well with measurements obtained from female specimens collected in other countries.

Euseius ovaloides was described by Blommers (1974) from specimens collected on Citrus hystrix and Persea americana in Madagascar. Like all Euseius species, this species belongs to the type IV (polliniphagous generalist predators) of McMurtry and Croft (1997) and McMurtry et al. (2013). The species has been occasionally recorded from Madagascar ( Blommers, 1974), Papua-New Guinea ( Schicha and Gutierrez 1985), Seychelles ( Schicha, 1987), Reunion Island, ( Quilici et al., 1997, 2000), Guadeloupe, Martinique and Marie-Galante ( Moraes et al., 2000; Kreiter et al., 2006) on various plants, though its biology remains unknown. It is suspected to be a poor predator of tetranychid mites ( Gutierrez and Etienne, 1986) but can be considered as a potentially good predator of thrips and of whiteflies. This is one of the more common species on La Réunion Island.

This is the first mention of that species in Vietnam.

Measurements of the single female specimen collected during this study are provided in table 11 and compared with measurements obtained from specimens collected in other countries of Indian Ocean and the Caribbean.