Genus Austracus Keifer, 1944:20

Austracus havrylenkonis Keifer, 1944:20, fig. 182

Type host: Nothofagus dombeyi (Mirb.) Blume (Fagaceae) Relation to host: mites cause galls on fruits

Distribution: South America (Argentina)

Austracus taiwanensus (K.- W. Huang 2006) comb. n.

Sierraphytoptus taiwanensus K.- W. Huang 2006:63, fig.1 Type host: Trochodendron aralioides S. et Z. ( Trochodendraceae) Relation to host: vagrant on the lower leaf surface, no damage observed Distribution: Taiwan

Comparative material. One female and one nymph of A. taiwanensus comb. n. from T. aralioides . The mites are vagrant on the lower leaf surface, causing no visible damage. Slide # 030416 -01 (TAIWAN: Nantou Renai, 16.IV.2003, leg. K.W. Huang) and slide # 961031-17 (TAIWAN: Taichung Anmashan, 31.X.1996, leg. C.F.Wang).