Species of the genus Euseius Wainstein (Acari: Phytoseiidae: Amblyseiinae) from Taiwan

Abstract

The six mite species of the genus Euseius Wainstein from Taiwan are reviewed, including E. ovalis (Evans), E. daluensis sp. nov., E. macaranga sp. nov., E. paraovalis sp. nov., and two species recorded for the first time in Taiwan, E. aizawai (Ehara & Bhandhufalck) and E. circellatus (Wu & Li). Measurements of these species and an identification key for adult females of the six Euseius species from Taiwan are provided.

Contribution to the knowledge of the genera Euseius Wainstein and Gynaseius Wainstein (Acari: Mesostigmata: Amblyseiinae) from Taiwan

“…Among them, E. gallicus Kreiter & Tixier has been used commercially for whiteflies and thrips control (Biobest, 2018). In a decade-long survey conducted by the authors of the present study, six species-E. aizawai (Ehara & Bhandhufalck), E. circellatus (Wu & Li), E. daluensis Liao & Ho, E. macaranga Liao & Ho, E. ovalis (Evans), and E. paraovalis Liao & Ho-were found in Taiwan (Liao et al 2017a). visible on the dorsal shield.…”

“…However, only two specimens have been found in Southern Taiwan and the biological control potential of this species needs further investigations. Liao et al (2017a) reported that Taiwanese E. aizawai specimens had two morphological types on the dorsal shield (e.g. anterolateral dorsal shield reticulated and entire dorsal shield reticulated).…”

“…Knowledge regarding the fauna of Phytoseiidae in Taiwan is still increasing, with detailed investigations conducted by the present authors. To date, 59 species have been recorded from Taiwan and neighboring islands (Ehara 1970;Lo 1970;Tseng 1972;1973;1975;1976;Chang & Tseng 1978;Tseng 1983;Ho & Lo 1989;Ho et al 2003;Liao et al 2017a;2017b;2017c).…”

“…Some of them, such as E. scutalis (Athias-Henriot), may survive in the absence of prey by sucking plant tissues (Nomikou et al 2003;Adar et al 2012). Several studies have noted the biological potential of Euseius species to control small agricultural pests (Döker et al 2014;Lopes et al 2015;Liao et al 2017a;De Alfaia et al 2018). Among them, E. gallicus Kreiter & Tixier has been used commercially for whiteflies and thrips control (Biobest, 2018).…”

<p class="Body">Two new species of Amblyseiinae Muma (Acari: Mesostigmata: Phytoseiidae) from southwest China

“…Amblyseiinae is the largest subfamily in the family Phytoseiidae, with 1816 nominal species in the world, included in 66 genera (Demite et al 2019). So far 196 species belonging to 15 genera of phytoseiid mites have been recorded in China (Wu et al 2009;Fang et al 2017;Liao et al 2017Liao et al , 2018Demite et al 2019).…”