Abstract
Revisions of two new species groups of the genus Agra Fabricius are presented with the following species described as new: pusilla group - Agra cruciariasp. n. (Brazil), Agra gracesp. n. (Ecuador,Perú), Agra maxsp. n. (Brazil), Agra minasianussp. n. (Brazil),Agra notpusillasp. n. (Brazil), Agra pseudopusillasp. n. (Brazil); piranha group - Agra cesp. n. (Perú), Agra risserisp. n. (Bolivia,Brazil), Agra maiasp. n. (Bolivia), Agra piranhasp. n. (Ecuador); Agra tiputinisp. n. (Ecuador). Species of these two groups have adults that are the smallest in the entire genus, although this does not indicate they are closely related based on other attributes. All species are Amazonian in distribution.