Pyrearinus pusillus Costa, 1978: 218

Holotype: 1 ♂. Filadelfia, Fer. Col. Chaco, Parag. I.21.56; J. L. Nickel Collector. [on red] Holótipo; [on red] Pyrearinus pussilus holótipo, C. Costa det. 1978; ♂; CIS.

Conservation status: Good condition; abdomen and genitalia glued on transparent card under specimen. Paratype: 1 ♂. Idem, parátipo; light.

Conservation status: Idem.