Attached to the edge of the wing are long setae, making up most of the functional surface of the wing. Tarsi appear 2 or 3-segmented. Cephaloplectines, while not polymorphic, lack eyes entirely, due to a myrmecophile lifestyle. Vestigial morphs' of polymorphic forms usually lack body pigment. Ptiliid larvae are also very small, usually under 2.0 mm in length.
Body shape is of linear form, and pigmentation white to somewhat yellow.
Eyespots normally absent, as well as epicranial and frontal lines. Associated with the labrum of Cephaloplectinae are 4 denticles located beneath the anterior margin. Fossil History Ptiliid fossils are known from the Oligocene and Holocene. Presently, there exists no phylogenetic analysis of ptiliid relationships. References For more extensive list of ptiliid references, see here .