Petrobiinae sp. BOLD:AAV1530
Diagnostic description:
Flagellum of anteanna devoid of scales. Scales present on scape and pedicel of flagellum. Lateral ocelli oval, nearly round, distant from each other at lateroventral margins of compound eyes, resembling lateral ocelli of Machilinus. Coxal stylets on legs III only. Eversible vesicles 2 +2 on abdominal segments II-V, 1 + 1 on abdominal segments I, VI-VII. This combination of characters does not fit any known North American genus of bristletails.