Note 939 — ORDER IX. DIPTERA.
Reading edition
Personal Narrative, E. T. v. 87. Humboldt has given a detailed account of these insect plagues, by which it appears that among them there are diurnal and crepuscular, as well as nocturnal species, or genera: the Mosquitoes, signifying little flies (Simulia), flying in the day; the Temporaneros, flying during twilight; and the Zancudos, meaning long-legs (Culices), in the night.