A taxonomic review of the genus Triscaedecia (Lepidoptera: Alucitidae) in the world fauna.

The article describes four new species of Alucitidae in the genus Triscaedecia from the Malay and Polynesian regions: Triscaedecia sulawesi Ustjuzhanin, Kovtunovich Hobern sp. nov., T. sarawaki Ustjuzhanin, Kovtunovich Hobern sp. nov., T. svetlanae Ustjuzhanin, Kovtunovich Hobern sp. nov., and T. suva Ustjuzhanin, Kovtunovich Hobern sp. nov. The female genitalia of Triscaedecia dactyloptera Hampson, 1905 and the adult and the male genitalia of Triscaedecia septemdactyla (Pagenstecher, 1900) are described and illustrated for the first time. Diagnostic characters are specified for each new taxon, genitalia are described and illustrated, and images are provided of adults. A spreadsheet of all known localities and specimens is included as a supplementary file.

New species of many-plumed moths (Lepidoptera: Alucitidae) from Tanzania.

Basing on the examination of new material on many-plumed moths from Tanzania, four new species have been discovered: Alucita agassizi Ustjuzhanin Kovtunovich sp. nov., A. iringiensis Ustjuzhanin Kovtunovich sp. nov., A. snezhinka Ustjuzhanin Kovtunovich sp. nov. and A. tanzanica Ustjuzhanin Kovtunovich sp. nov. They are described and compared with the closest species. The diagnostic characters for each new taxon are specified. The genitalia are described and illustrated, images of the adults are provided. Data on many-plumed moths previously unknown for Tanzania are given. Two species, A. seychellensis (Fletcher 1910) and A. malawica (Ustjuzhanin Kovtunovich, 2016) are reported from Tanzania for the first time.