Macromeris Spider Wasp vs Oak Marble Gall Wasp

Side-by-side species comparison

Attribute Macromeris Spider Wasp Oak Marble Gall Wasp
Scientific Name Entypus unifasciatus Andricus kollari
Order Hymenoptera Hymenoptera
Family Pompilidae Cynipidae
Size 15-30 mm 3-5 mm
Habitat Deserts & Drylands Parks
Diet Predators Gall Makers
Regions North America, South America Europe, Western Asia
Conservation Least Concern Least Concern

Macromeris Spider Wasp

A large dark spider wasp with a single white or yellow band on the abdomen. It hunts large wolf spiders and trapdoor spiders across the Americas.

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Did You Know?

Its single bright abdominal band makes it one of the most easily identified spider wasps in the field.

Oak Marble Gall Wasp

A tiny wasp that induces marble-shaped galls on oak twigs where its larvae develop. The galls were historically used to make iron gall ink.

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Did You Know?

The ink made from its galls was used to write the US Declaration of Independence and Leonardo da Vinci's notebooks.