Family Ptiloneuridae

Diagnosis. Labral sclerites incomplete, not reaching the proximal end of the labrum with the exception of Willreevesia . Three-segmented tarsi. Forewing with two anal veins, forewing M with 3–8 branches and hindwing M with 1–5 branches. Phallosome V- or Y-shaped, complex, open posteriorly, with distinct endophallic sclerites. Hypandrium of one to five sclerites, usually with a large, central sclerite, with posterior projections, with one or two small side sclerites on each side. Ovipositor valvulae with v1 present and v3 a finger-like, setose lobe broadly attached to side of v2 (García Aldrete & Mockford 2012).