Two new species of the genus Taikona Arita & Gorbunov, 2001 (Lepidoptera, Sesiidae) from Yunnan, China.

Two new species, Taikona gaoligongshana Yu, Arita & Kallies, sp. nov. and Taikona extraordinaria Yu, Kallies & Arita sp.

------A new species of the genus Toleria Walker, [1865] from northern Vietnam and Laos with establishment of a new generic synonymy in Cissuvorini (Lepidoptera, Sesiidae).

A new species of Toleria Walker, [1865], T. aritai Ogane Kallies spec. nov.

A large hornet mimic clearwing moth of the genus Lamellisphecia Kallies amp; Arita, 2004 (Lepidoptera, Sesiidae) from Nanling, Guangdong, southern China.

We here describe a new species, Lamellisphecia minwangi Arita Kallies sp. nov., from Nanling, Guangdong, southern China.

On the taxonomy and biology of the clearwing moth Aegeria montis (Lepidoptera, Sesiidae).

The systematic position of Aegeria montis Leech, 1889 and Zhuosesia zhuoxiana Yang, 1977 is discussed. Having studied newly collected material, we transfer A. montis to the genus Chamaesphecia Spuler, 1910, subgenus Chamaesphecia s.