Chrysis roseni Mocsáry, 1912

(Figs 8A–D)

Chrysis (Tetrachrysis) roseni Mocsáry, 1912: 571 . Holotype ♀; Colombia (ZSM) (examined). Synonym of Chrysis excavata Brullé, 1846 according to Kimsey & Bohart (1991: 409) (intricans group); Lucena et al. (2024: 24).

Chrysis roseni Mocsáry, 1912 syn. nov. of Chrysis fuscipennis Brullé, 1846: present paper ( fuscipennis group).

Material examined. Holotype of Chrysis roseni, 1♀: E. Steinheil 2.76, n# 1 / Kolombien II.1876 Coll. Steinheil / Roseni typ. Mocs. det. Mocsáry / Type / Wahasch. Colombien (ZSM).

Chrysis roseni was synonymized with Chr. excavata and included by Kimsey & Bohart (1991) in the intricans group without examining the type specimen. Surprisingly, the type of Chr. roseni belongs to the fuscipennis group. PR examined its type housed at ZSM (Fig. 8A) after his publication on the fuscipennis group (Rosa 2024b) in which this species group, represented by a specimen of Chrysis erratica Abeille de Perrin and du Buysson, 1887 collected in Argentina, was listed as recorded for the first time from South America. The type of Chr. roseni appears to be conspecific with Chr. fuscipennis based on the curved and M-shaped frontal carina (Fig. 8B) and the relatively sparse punctation on the lateral sides of the mesoscutum (Fig. 8C); we thus formally establish the synonymy. This record predates the presumed first recorded occurrence of the Chr. fuscipennis species group from South America by almost 150 years. The species was likely introduced via commerce from Asia, but its established presence in South America needs further verification.