In a 20-day period during the adult stage of the species, daily fluctuations in light intensity, relative humidity, evaporation, cloud cover and temperature influenced flight activity. Wind speed, wind direction and barometric pressure were of no great significance.

Odonatologica

CC BY-SA 4.0 NL ("Naamsvermelding-GelijkDelen")

Societas Internationalis Odonatologica

J.-G. Pilon, L. Pilon, & E. Caron. (1995). Action de facteurs météorologiques sur l’activité de vol de Libellula julia Uhler dans les Basses Laurentides, Québec, Canada (Anisoptera: Libellulidae). Odonatologica, 24(4), 473–482.