leptidæ

pl. [Mod. Lat. lept (is); Lat. fem. pl. adj. suff.- idæ.] Entom.: A family of Diptera, tribe Not acantha. It consists of slender insects with a long abdomen; antenne very short, of three joints; proboscis short, thick, of three bristles; palpi long and prominent. Species few. They are small, sluggish in sects, often with spotted wings, frequently seen on the trunks of trees. IMG:content-0492.png:[blocks in formation] chin, bench; go, gem; thin, this; drical slightly-curved case of sand grains, sometimes with long twigs attached to it.