Oodes helopioides (Fabricius, 1792)

Guéorguiev, Borislav & Liang, Hongbin, 2020, Revision of the Palaearctic and Oriental representatives of Lachnocrepis LeConte and Oodes Bonelli (Coleoptera: Carabidae), with special account on Chinese species, Zootaxa 4850 (1), pp. 1-89 : 44

“ helopioides ” species group

Diagnosis. The species of this group share three features which are represented by their opposite states in the only member of the “ gracilis ” group, O. gracilis , namely: (1) stria 7 as impressed as other medial striae along elytral anterior third; (2) metacoxal basal sulcus extended on lateral third; and (3) sclerite of internal sac of median lobe without spines. All three traits are considered plesiomorphic.