Adults: With or without wings. If wings present, forewings typically leathery or hard basally and translucent and flexible apically. Nymphs: With or without wing pads. Segmented legs present. Mandibles hidden within needle-like beak in adults and nymphs.
Head with visible gula (suborder Heteroptera). Antennae longer than head, positioned anterior to eyes, clearly visible from dorsal side. Dorsum of head typically with median longitudinal sulcus or smooth stripe. At least front tarsi with ante-apical claws (claws protruding from leg before apex). Mesothoracic legs about equidistant between front and hind legs, if NOT, then middle tarsi with feather-like or blade-like structures. Hind femora short (shorter than abdomen, or just barely longer). Laterally, metasternum with pair of scent grooves anterior to hind coxae.