Taxonomic study on the subgenus Orientostichus, the Pterostichus pulcher species group (Coleoptera, Carabidae, Pterostichus)

The Pterostichus pulcher species group of the subgenus Orientostichus Sciaky & Allegro is defined for P. pulcher Sciaky & Allegro and six new allied species. All seven species of this group are revised on morphological characters. Six new species are described from south of Sichuan province, China: P. pemphis sp. nov. (type locality: Shuihaizi, Puge county, 27.33 degrees N, 102.45 degrees E), P. orbicollis sp. nov. (Longzhoushan, Huili county, 26.79 degrees N, 102.20 degrees E), P. leo sp. nov. (Shizishan, Jinyang county, 27.88 degrees N, 103.23 degrees E), P. liyuani sp. nov. (Luojishan, Puge county, 27.58 degrees N, 102.39 degrees E), P. condylus sp. nov. (Yele, Mianning county, 28.96 degrees N, 102.16 degrees E), P. jialini sp. nov. (Jiamashi, Huidong county, 26.81 degrees N, 102.68 degrees E). Tritrichis chinensis Jedli & ccaron;ka, syn. nov., a species previously misplaced in the subgenus Orientostichus, is excluded from the genus Pterostichus and confirmed to be a junior synonym of Synuchus nitidus reticulatus Lindroth, 1956.

Automated summary

This article discusses the Pterostichus pulcher species group in the subgenus Orientostichus and describes six new species. Additionally, it confirms the correct identity of a previously misclassified species.