Nossidiinae, Sorensson & Delgado, 2019

Jang, Taeyoung, Sörensson, Mikael & Park, Jong-Seok, 2023, Three new species of the subfamily Nossidiinae (Coleoptera: Ptiliidae) from South Korea, Zootaxa 5319 (4), pp. 537-547 : 538

Key to Korean Nossidiinae species

1. Pronotal and elytral lateral margin smooth, not serrate (fig. 2B, E). Pronotum widest in front of base, not tapering caudad (fig. 2B). Anterior petiolar margin of hindwing with several setae on distal two thirds (fig. 2D). Mesoventrite medially as long as metaventrite (fig. 2G). Spermatheca globular (fig. 2M)............................... Nossidium koreanum sp. nov.

- Pronotal and elytral lateral margin serrate. Pronotum widest slightly behind middle, distinctly tapering caudad. Anterior petiolar margin of hindwing with one distinct seta. Mesoventrite medially distinctly shorter than metaventrite. Spermatheca oval....2

2. One seta on anterior serration of elytral lateral margin distinctly longer than other setae (fig. 3E). Petiolar posterior margin of hindwing setose on distal half (fig. 3D). Spermatheca slightly longer than broad; basal tip pointed (fig. 3M).......................................................................................... Sindosium longifilum sp. nov.

- Setae on anterior serration of elytral lateral margin roughly equal in length (fig. 4E). Petiolar posterior margin of hindwing setose on distal third (fig. 4D). Spermatheca almost twice as long as broad; basal tip rounded (fig. 4J)........................................................................................... Sindosium chungbukicum sp. nov.