Rhoptrocentrus piceus Marshall, 1897: 99

(Fig. 2)

The specimens from Argentina studied were compared with reference material from USNM and no significant morphological differences were noticed among them. This polyphagous species, which attacks at least 18 host species (Yu et al., 2012), is widely distributed, especially in the northern hemisphere.

Material examined. ARGENTINA: 3 females, Salta, El Brete, 07-V-1994, Di Iorio col., reared from a dead tree of Celtis tala (MACN) . UNITED STATES OF AMERICA: 1 female, Virginia, Arlington, 09-IX-1932, K. V. Krombein col. (USNM) ; 1 female, Washington DC, with no further data (USNM); 1 male, Pennsylvania, Carlisle, V-1940, E. J. Udine col, ex. Hylotrupes bajulus (USNM) .