title: Two new Aprostocetus species (Hymenoptera: Eulophidae: Tetrastichinae), fortuitous parasitoids of invasive eulophid gall inducers (Tetrastichinae) on Eucalyptus and Erythrina.
abstract: Two closely related new species of Aprostocetus Westwood (Hymenoptera: Eulophidae: Tetrastichinae) are described as fortuitous parasitoids of invasive gall inducers in two other genera of Tetrastichinae, Leptocybe Fisher & LaSalle and Quadrastichus Girault. Aprostocetus causalis La Salle & Wu is a parasitoid of Leptocybe invasa Fisher & La Salle on Eucalyptus spp. (Myrtaceae) in China and Thailand, and A. felix La Salle, Yang & Lin is a parasitoid of Quadrastichus erythrinae Kim on Erythrina spp. (Fabaceae) in Taiwan. Epitetrastichus nigriventris Girault, 1913 is removed from synonymy from Aprostocetus gala (Walker), and treated as the valid species A. nigriventris (Girault).
authors.affiliation: Department of Entomology, National Chung Hsing University, 250 Kuo Kuang Road, Taichung 40227, TAIWAN.; Email: mmyang@nchu.edu.tw.
authors.forename: Man-Miao
authors.initials: MM
authors.lastname: Yang
authors.affiliation: Department of Entomology, National Chung Hsing University, 250 Kuo Kuang Road, Taichung 40227, TAIWAN.; Email: teaandcow@hotmail.com.
authors.forename: Yu-Che
authors.initials: YC
authors.lastname: Lin
authors.affiliation: Guangxi Zhuang Autonomous Region Forestry Research Institute, 23 Yongwu Road, Nanning 530001, PR China.; Email: wuyj114@163.com.
authors.forename: Yaojun
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Australian National Insect Collection, CSIRO National Facilities and Collections, GPO Box 1700, Canberra, ACT 2601, Australia.; Email: nicole.fisher@csiro.au.
authors.forename: Nicole
authors.initials: N
authors.lastname: Fisher
authors.affiliation: Product & Technology Development Center, SCG Paper PLC., Ratchaburi 70110, Thailand; Email: thitipoc@scg.co.th.
authors.forename: Titiporn
authors.initials: T
authors.lastname: Saimanee
authors.affiliation: Department of Entomology, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.; Email: benjakhun2003@hotmail.com.
authors.forename: Benjakhun
authors.initials: B
authors.lastname: Sangtongpraow
authors.affiliation: Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Road, Chaoyang District, Beijing, 100101, P. R. China. University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing, 100049, P. R. China.; Email: zhucd@ioz.ac.cn.
authors.forename: Chaodong
authors.initials: C
authors.lastname: Zhu
authors.affiliation: Department of Entomology, National Chung Hsing University, 250 Kuo Kuang Road, Taichung 40227, TAIWAN.; Email: william2797@hotmail.com.
authors.forename: William Chien-Hsien
authors.initials: WC
authors.lastname: Chiu
authors.affiliation: Australian National Insect Collection, CSIRO National Facilities and Collections, GPO Box 1700, Canberra, ACT 2601, Australia. Atlas of Living Australia, CSIRO National Facilities and Collections, GPO Box 1700, Canberra, ACT 2601, Australia.; Email: john.lasalle@csiro.au.
authors.forename: John
authors.initials: J
authors.lastname: La Salle
mesh_terms: D000818:Animals; D004895:Erythrina / Q000469:parasitology*; D005052:Eucalyptus / Q000469:parasitology*; D005260:Female; D008297:Male; D010941:Plant Tumors / Q000469:parasitology*; D014863:Wasps / Q000033:anatomy & histology / Q000145:classification*