Table S1 - General oligonucleotide primers used to amplify four fragments of Dermatophagoides farinae mitochondrial genome Primer Namei COX1_16F COX1_1324R COX1_25Fshort_T COX1_1282R_T COX1_220F CO2_581R COX1_705F_T 12S_ACRF_125F 16S_ACRF_1155R 12S_ACRF_134F 16S_ACRF_1132R_T ND4_626F ND5_675R ND5_600R CytB_412F CytB_847R CytB_419F CytB_818R i 5'-M13 tailii M13FORW M13REV M13FORW M13FORW Primer sequence (no M13 tail) TGANTWTTTTCHACWAAYCAYAA CDGWRTAHCGDCGDGGTAT TCHACWAAYCAYAARRAYA CCWVYTARDCCTARRAARTGTTG ATRATHGGNGGNTTYGGIAA CCRCARATYTCTGARCAYTGWC TTGATTTTTTGGTCATCCAGA TCRRATNKYGTGCCAGCAGT TWWWWAGATAARAWCCARTCTG GTGCCAGCAGTYKCGGTYAT YRCCGRYYTGAACTCAGH YTWCCWAARGCHCATGTDGA TNACHARDGTDGAAGAATGRAC AADGGAADYTGDGCICTYTT AGGNTAYGTTYTTCCITGRG GGRATAGAWCGWARRATDGC GTTYTTCCTTGRGGICAAAT GCRAATARRAARTATCATTCWGGTT PCRiii CO1.p (F) CO1.p (R) CO1.n (F) CO1.n (R) CO1-2.p (F) CO1-2.p,h (R) CO1-2.h (F)iv 12S-16S.p (F)v 12S-16S.p (R)e 12S-16S.sh (F)e 12S-16S.sh (R)e ND4-ND5.p,h (F) ND4-ND5.p (R) ND4-ND5.h (R) COB.p (F) COB.p (R) COB.sh (F) COB.sh (R) Primers were designed using alignment of parasitiform and acariform taxa; they are expected to work in these groups, but were tested only in acariform mites ii M13FORW=TGTAAAACGACGGCCAGT, M13REV = CAGGAAACAGCTATGACC; M13 tails were not consistently added to all nested primers; primers with M13 tails were used in other experiments iii product of parent PCR (p) is used for subsequent nested (n), heminested (h), or subheminested (sh) PCRs; (F) = forward primer, (R) = reverse primer iv works but may be optimized further v specific to Acariformes