Sample details.

The species, populations, biological replicates or no. of individuals tested (n), country of origin, type of source (wild/colony), source or collector, year of collection (colony seed year, if different), and host details are provided. All samples were morphologically identified by the collector or submitting organisation, and/or Dr. Disna Gunawardana (DG). Most samples were extracted using Qiagen (QG), while some were extracted using prepGem (PG), as described. For New Zealand locations, Crosby codes are used where needed to denote geographic area.1Identifiers and submitters: DS = David Shearer, Oregon State University, Oregon, USA; DG = Disna Gunawardana, Plant Health and Environment Laboratory (PHEL), Auckland, NZ; PB = Paul Becher, Swedish University of Agricultural Sciences, Alnarp, Sweden; AG = Alberto Grassi, Fondazione Edmund Mach/IASMA, Pergine Valsugana, Italy; TR = Tiso Roccini, Italan Plant Protection Service, Italy; DSSC = Drosophila Species Stock Centre, University of California, California, USA; YF = Yoshiyaki Fuyama, Tokya Metropolitan University, Japan; MW = Masayoshi Watada, Ehime University, Japan; AK = Artyom Kopp, University of California, Davis, USA; LT = Lynn Thockmorton, University of Chicago, USA; OB = Olga Barmina, University of California, Davis, USA; SH = Simon Hodge, University of Lincoln, Lincoln, NZ; JC = JM Cawley, PHEL submitter, RHK = Ruud H. Klienpaste, New Zealand.