Gum-Tree Pergid Sawfly vs Cuckoo Bumblebee

Side-by-side species comparison

Attribute Gum-Tree Pergid Sawfly Cuckoo Bumblebee
Scientific Name Perga polita Bombus vestalis
Order Hymenoptera Hymenoptera
Family Pergidae Apidae
Size 14-20 mm 15-22mm
Habitat Woodlands Woodlands
Diet Herbivores Parasites
Regions Southeastern Australia Europe
Conservation Least Concern Least Concern

Gum-Tree Pergid Sawfly

A robust Australian sawfly with a dark, polished body. Its gregarious larvae cluster on eucalyptus branches and produce a strong eucalyptus odor when disturbed.

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Did You Know?

The powerful eucalyptus-oil smell released by disturbed larvae can be detected from several meters away and serves as a chemical defense.

Cuckoo Bumblebee

A social parasite that invades buff-tailed bumblebee nests, kills the queen and enslaves the workers.

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Did You Know?

Enters the nest of its host species, fights and kills the queen, then forces the workers to raise her own offspring.