Espeson simplex (WENDELER, 1955) Irmler, 2015

Irmler, Ulrich, 2015, The neotropical genus Glyptoma ERICHSON, 1839 with descriptions of new species and a key to the species (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 65 (2), pp. 297-325 : 320

Espeson simplex (WENDELER, 1955) comb. n.

Calocerus simplex WENDELER, 1955: 191

Espeson simplex IRMLER, 2012: 346 new synonymy

Type material examined: 1 male syntype: Brazil: Santa Catarina, Nova Teutonia (27°11'S, 52°23'W), 300–500 m elevation, leg F. Plaumann ( ZMHU) ; 1 male, 1 female syntypes: with same date ( MNPD) .

According to notes published by WENDELER (1955), the types of Calocerus simplex (WENDELER, 1955) should be in his collection and in the collection of Franke. The collection of Wendeler was deposited in ZMHU, the collection of Franke was deposited in the collection of MNPD. A syntype of Calocerus simplex was not found in ZMHU, whereas two syntypes were found in MNPD. The finding of the syntypes of Calocerus simplex Wendeler in MNPD revealed that they were identical with Espeson simplex IRMLER, 2012 . IRMLER (2012) described the species on the base of specimens from the ZMHU, where it was deposited under the name Espeson simplex WENDELER. Reviewing the Espeson species and studying the material of ZMHU, IRMLER (2012) supposed that E. simplex was a manuscript name given by Wendeler for a new undescribed species. After finding the syntypes of Calocerus simplex in MNPD, it became clear that WENDELER (1955) described this species as Calocerus simplex . Later he found that the species belongs to the genus Espeson , but never published this transfer. So, syntypes of Espeson simplex labelled by Wendeler are deposited in ZMHU and two syntypes in MNPD. Thus, Espeson simplex IRMLER, 2012 is identical with Espeson simplex (WENDELER, 1955) and becomes its objective homonymic synonym.