Galendromus (Galendromus) occidentalis ( Nesbitt, 1951 )

Liao, Jhih-Rong, Ho, Chyi-Chen & Ko, Chiun-Cheng, 2021, Predatory mites (Acari: Mesostigmata: Phytoseiidae) intercepted from samples imported to Taiwan, with description of a new species, Zootaxa 4927 (3), pp. 301-330 : 310

Galendromus (Galendromus) occidentalis ( Nesbitt, 1951)

Typhlodromus occidentalis Nesbitt, 1951: 29 .

Material examined. USA: one female ( HAL 095F371) from Prunus persica (Rosaceae) , 25 Sept 2006; six females ( HAL 095F350) from M. pumila (Rosaceae) , 9 Nov 2006; one female ( HAL 095F455) from M. pumila (Rosaceae) , 15 Nov 2006; two females ( HAL 095F456) from M. pumila (Rosaceae) , 15 Nov 2006; four females ( HAL 095F458) from M. pumila (Rosaceae) , 15 Nov 2006; two females ( HAL 095F459) from M. pumila (Rosaceae) , 15 Nov 2006; two females ( TAL 095F457) from Prunus persica (Rosaceae) , 15 Nov 2006; four females ( HAL 095G068) from M. pumila (Rosaceae) , 30 Nov 2006; four females ( HAL 095G069) from M. pumila (Rosaceae) , 30 Nov 2006; three females ( HAL 095G070) from M. pumila (Rosaceae) , 1 Dec 2006; seven females ( HAL 095G079) from M. pumila (Rosaceae) , 7 Dec 2006; four females ( HAL 095G081) from M. pumila (Rosaceae) , 7 Dec 2006; seven females ( HAL 095G799) from M. pumila (Rosaceae) , 19 Dec 2006; nine females ( HAL 095G800) from M. pumila (Rosaceae) , 25 Dec 2006; three females ( QAR 101H022) from P. persica (Rosaceae) , 19 Sept 2011; one female ( HAL 101B056) from P. persica (Rosaceae) , 21 Sept 2011; one female ( QAR 101H024) from P. persica (Rosaceae) , 22 Sept 2011; one female ( QAR 101H025) from P. persica (Rosaceae) , 22 Sept 2011; one female ( QAR 101H026) from P. persica (Rosaceae) , 22 Sept 2011; three females ( HAL 101B059) from P. persica (Rosaceae) , 28 Sept 2011; one female ( QAR 102H034) from P. persica (Rosaceae) , 14 Aug 2013; one female ( QAR 102H046) from P. persica (Rosaceae) , 12 Sept 2013; one female ( QAR 102H047) from P. persica (Rosaceae) , 12 Sept 2013; one female ( QAR 102H053) from P. persica (Rosaceae) , 26 Sept 2013.

Previous records. Africa: South Africa ( Denmark 1982). Asia: China ( Wu et al. 1997), Israel ( Denmark 1982), Jordan ( Allawi 1991), South Korea ( Ryu & Lee 1992), Taiwan ( Chant & Yoshida-Shaul 1984). Europe: Austria (El- Borolossy 1989), Greece ( Ragusa Di Chiara et al. 1995), Netherlands ( Hoying & Croft 1977), Russia ( Denmark 1982). North America: Canada ( Nesbitt 1951), Mexico ( Denmark & Evans 2011), USA ( Cunliffe & Baker 1953). Oceania: Australia ( Whitney & James 1996), New Zealand ( Collyer 1964b). South America: Chile (Prado 1991), Venezuela ( Aponte & McMurtry 1993).

Remarks. The species is distributed worldwide ( Demite et al. 2020). Denmark (1982) reported species distribution in Taiwan without recording specimen information. Chant & Yoshida-Shaul (1984) reported the species to be distributed in Taiwan based on one female specimen collected in 1950. Lo et al. (1986) reported that the species was introduced to Taiwan but could not be kept in laboratory. All specimens were collected on peaches and apples from the United States. The species has favorable efficacy for use in orchards. EPPO (2020) listed this species as a commercially used biological control agent.