SeasonalityStrickland Museum collections date from May to August; Blatchley (1926) reported collections into October.
IdentificationThe species is fairly oval shaped with a brightly coloured cuticle, though coloring is apparently highly variable. The pronotum is prominently red coloured posteriorly, pale-yellow anteriorly, and has a wide, transverse black bar antero-medially. The presence of this bar distinguishes this species from the morphologically similar P. bioculatus. Perillus exaptus can also be isolated from P. bioculatus due to the presence of ventral tubercles that are not longer than their width on the fore-femora. The scutellum is mostly black with narrow, yellow lateral bands that follow its margin apically. The hemelytra are black with lateral margins, embolium, also pale yellow, and the membranous regions lacking pigmentation. Connexivum are concealed under the wings. The species is small in comparison to P. bioculatus; length between 5 and 7.5 mm (Blatchley 1926; McPherson 1982).