Chrysapion auctum
(Sharp, 1890) 
Source: O'Brien, C.W., Wibmer, G.J. 1982.
Family: Brentidae
Gracile, nigrum, supra subnonescens, tenuiter setosum, fere opacum, antennarum basi pedibusque flavis; rostro parum elongato, densissime subtiliter rugoso; prothorace conico-cylindrico, crebre sat fortiter punctato. Long. 2 millim.
Hab. Mexico, Orizaba in December, Cuernavaca in June, Chilpancingo in July; Guatemala, Aceituno.
This insect is extremely similar to A. rugirostre, but it is a little larger, and has the rostrum slightly longer, especially in the female; the trochanters are dark in colour; and the suture between the first and second ventral segments is simple.
We have received about twelve examples of this species from Mexico, but only one from Guatemala.
