Insect Plague

Player's Handbook v.3.5 (PH)Updated Core (3.5)

Insect Plague is a D&D 3.5 spell (Conjuration (Summoning)) from PH. On class lists for Cleric (Level 5), Druid (Level 5), Death Master (Level 5), and others. Range or area: Long (400 ft. + 40 ft./level); Saving throw: None; Duration: 1 minute/level; Casting time: 1 full round.

School
Conjuration (Summoning)
Casting Time
1 full round
Components
V, S, DF
Range
Long (400 ft. + 40 ft./level)
Effect
One swarm of locusts per three levels, each of which must be adjacent to at least one other swarm
Duration
1 minute/level
Saving Throw
None
Spell Resistance
No

You summon a number of swarms of locusts (one per three levels, to a maximum of six swarms at 18th level). The swarms must be summoned so that each one is adjacent to at least one other swarm (that is, the swarms must fill one contiguous area). You may summon the locust swarms so that they share the area of other creatures. Each swarm attacks any creatures occupying its area. The swarms are stationary after being summoned, and won’t pursue creatures that flee.

See the Monster Manual for details on locust swarms.