TCD MS 10515 folio 88 recto
when a fresh invigorating breeze flowed from the north and the sun was concealed behind heavy clouds rendering the air pleasantly cold, the migration of wingless locusts ceased. They collected themselves into dense clusters and sought protection from the wind under the lee of every desert tuft. As soon as the sun appeared, to spread its warmth over the sand, each group emerged from its shelter, cluster joined with cluster to again creep onward in a countless living swarm.
Blue ink drawing of a locust on 88R