Related Clues:

• Ubiquitous insect
• Dance if they're in your pants
• Picnic hamperers
• Soil aerators
• Busy builders
• Unwanted carpenter?
• Climber of small hills
• Echidna's snacks
• Fire or army, e.g.
• They may be in one's pants
• Silent army
• Picnic buttinsky
• Small soldier
• Tiny hill builder
• Aardvark's lunch