Abstract
A new species of LobobrachusSharp, 1885Sharp, D. 1885. Description of two new Carabidae from Brazil. Stettiner Entomologische Zeitung, 46: 401-403., Lobobrachus cleidecostae sp. nov., from Piauí state, Brazil, is described and illustrated. The genus and Lobobrachus lacerdaeSharp, 1885Sharp, D. 1885. Description of two new Carabidae from Brazil. Stettiner Entomologische Zeitung, 46: 401-403., are redescribed and the identity of L. alternansTschitschérine, 1901Tschitschérine, T.S. 1901a. Description de quelques nouvelles espèces de la tribu Platysmatini. Horae Societatis Entomologicae Rossicae, 35: 01-16., is discussed. Based on study of all available specimens and published descriptions it appears that L. alternans cannot be diagnosed and is a synonym of L. lacerdae. However, the syntypes of L. alternans cannot be located, thereby making a final decision on synonymy impossible to substantiate fully. Photographs of the aedeagi of L. lacerdae, L. cleidecostae, and specimens that best correspond to L. alternans, including those putatively identified by Tschitschérine, are presented for the first time.
Key-Words.
Aedeagus; Pterostichini; Euchroina; Taxonomy
