Datomicra Mulsant & Rey

Lee, Seung-Gyu & Ahn, Kee-Jeong, 2017, A taxonomic review of the Korean species of the subgenus Datomicra Mulsant & Rey of the genus Atheta Thomson, with description of a new species (Coleoptera, Staphylinidae, Aleocharinae), Zootaxa 4268 (4), pp. 508-522 : 509-510

Key to Korean species of the subgenus Datomicra Mulsant & Rey

1. Male abdominal tergite VIII not modified, without processes...................................................2

- Male abdominal tergite VIII modified or with processes.......................................................3

2. Abdominal tergites with transversely striate microsculpture................................... A. (D.) pyongangsani

- Abdominal tergites with imbricate or reticulate microsculpture.................................... A. (D.) sordidula

3. Abdominal tergite VIII with five macrosetae on each side of midline.................. A. (D.) semidentiventris sp. nov.

- Abdominal tergite VIII with four macrosetae on each side of midline............................................ 4

4. Abdominal tergites with imbricate microsculpture; abdominal tergite II with one posterior macrosetae on each side of midline....................................................................................................5

- Abdominal tergites with reticulate microsculpture; abdominal tergite II with two posterior macrosetae on each side of midline................................................................................................... 6

5. Labium with ligula long and slender; abdominal tergite III with two posterior macrosetae on each side of midline.................................................................................................... A. (D.) celata

- Labium with ligula short and broad; abdominal tergite III with three posterior macrosetae on each side of midline.................................................................................................... A. (D.) nigra

6. Body length more than 2.0 mm; macrochaetal arrangement of abdominal tergites IV–V 23–23. ........ A. (D.) dentiventris

- Body length less than 2.0 mm; macrochaetal arrangement of abdominal tergites IV–V 13–13. ........................7

7. Antennomere 4 as long as wide; male abdominal tergite VIII with four distinct processes; spermatheca without umbilicus.......................................................................................... A. (D.) dadopora

- Antennomere 4 slightly transverse; male abdominal tergite VIII with four indistinct processes; spermatheca with umbilicus elongate................................................................................ A. (D.) lewisiana