The Robber Fly Family contains over 7000 species, spread throughout the world. They are large and aggressive flies, who lurk in wait for their prey. Large eyes, set high on the head, allow them to see potential victims - other insects, small invertebrates, even spiders. These are, generally, captured in flight, gripping between the powerful forelimbs and paralyzed via the short, sharp proboscis. The paralyzing neurotoxin also liquifies the victim's internal structure, allowing it to be sucked out through the proboscis.
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