An illustrated key to the genera and subgenera of the Alysiini (Hymenoptera, Braconidae, Alysiinae), with three genera new for China Author Zhu, Jia-Chen Author Achterberg, Cornelis van Author Chen, Xue-Xin text ZooKeys 2017 722 37 79 http://dx.doi.org/10.3897/zookeys.722.14799 journal article http://dx.doi.org/10.3897/zookeys.722.14799 1313-2970-722-37 59E9E63201B14503BCAC1465F9ADC436 Idiasta Foerster, 1863 Idiasta Foerster, 1863, 265; Shenefelt 1974: 993; Chen and Wu 1994 : 87; Belokobylskij 1998 : 277. Type species: Alysia maritima Haliday, 1838. Synonym. Euphaenocarpa Tobias, 1975. Biology. Medium-sized genus, containing parasitoids of Muscidae . Species. Idiasta annulicornis (Thomson, 1895) ( Chen and Wu 1994 ) Idiasta brevicauda Telenga, 1935 ( Chen and Wu 1994 ) Idiasta dichrocera Koenigsmann , 1960 ( Chen and Wu 1994 ) Idiasta paramaritima Koenigsmann , 1960 ( Chen and Wu 1994 ) Idiasta picticornis (Ruthe, 1854) ( Chen and Wu 1994 ) Idiasta subannellata (Thomson, 1895) ( Chen and Wu 1994 )