Biology. 9 Galls induced by infection of a Synanthedon auritinctaoidis. Caterpillar on burls of Helicia formosana (Hualien Prefecture, Ruisui Township, Fuyuan National Forest Recreation Area) 10 galls induced by infection of a S. auritinctaoidis caterpillar on burls of Prunus campanulata (New Taipei City, Shenkeng District, Houshanyue) 11 caterpillar of S. auritinctaoidis sp. nov. in burls of H. formosana (Hualien Prefecture, Ruisui Township, Fuyuan National Forest Recreation Area) 12 female adult of Paranthrenella helvola sp. nov. ovipositing on bark of Cinnamomum camphora (Taoyuan City, Fuxing District, Lian).

 
 
  Part of: Liang J-Y, Hsu Y-F (2019) Two new species of the tribe Synanthedonini (Lepidoptera, Sesiidae), with new hostplant associations from Taiwan. ZooKeys 861: 81-90. https://doi.org/10.3897/zookeys.861.34387