Whilst at Ash Shargiyah Development
Company Farm near Jubail we saw plenty of Migratory Locust Locusta migratoria in the alfalfa fields. Normally they occur in
small numbers throughout Arabia, but rarely forms into swarms. There are two colour
forms, brown and green with the green colour forms mainly solitary adult
females. Under favourable breeding conditions they can form into vast groups,
with young ‘hoppers’ often all marching in the same direction. They are very
strong fliers and migratory specimens have been recorded as far away as Great
Britain.
