South American Robber Fly vs Lesser Cattle Grub

Side-by-side species comparison

Attribute South American Robber Fly Lesser Cattle Grub
Scientific Name Microstylum magnum Hypoderma lineatum
Order Diptera Diptera
Family Asilidae Oestridae
Size 30-40 mm 11-13 mm
Habitat Grasslands Farmland
Diet Predators Parasites
Regions South America, Central America North America, Europe, Asia
Conservation Least Concern Least Concern

South American Robber Fly

A large, elongate robber fly from tropical regions with a slender abdomen and long spiny legs. It hunts from exposed perches and can catch large prey relative to its body size.

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Did You Know?

Some tropical Asilidae species are among the largest predatory flies in the world, rivaling small dragonflies in wingspan.

Lesser Cattle Grub

A hairy, bee-like fly slightly smaller than H. bovis, whose larvae also parasitize cattle. Unlike H. bovis, its larvae migrate through the esophageal wall rather than the spinal canal. It causes significant hide damage and meat trim losses in the cattle industry.

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Did You Know?

Warble damage to cattle hides makes them unsuitable for premium leather, costing the cattle industry millions in hide value annually.