Metallic Ectatomma vs Mountain Ash Sawfly

Side-by-side species comparison

Attribute Metallic Ectatomma Mountain Ash Sawfly
Scientific Name Ectatomma ruidum Pristiphora geniculata
Order Hymenoptera Hymenoptera
Family Formicidae Tenthredinidae
Size 6-8 mm 5-7 mm
Habitat Farmland Mountains
Diet Fruit Feeders Herbivores
Regions Mexico, Central America, Northern South America Europe, introduced to North America
Conservation Least Concern Least Concern

Metallic Ectatomma

A medium-sized ant with a metallic sheen common in neotropical lowland habitats. It forages individually on the ground and nests in small colonies in the soil.

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Did You Know?

Some workers specialize as thieves, stealing food from nestmates of other Ectatomma ruidum colonies rather than foraging.

Mountain Ash Sawfly

A small blackish sawfly with pale legs whose green larvae can completely defoliate mountain ash (rowan) trees. Larvae have dark heads and feed gregariously.

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Did You Know?

Introduced to North America in the early 1900s, it quickly became the most damaging pest of ornamental mountain ash trees across the continent.