Delta Flower Scarab

Delta flower scarab clinging to flower
Scientific Name
Trigonopeltastes delta
Scarabaeidae (scarab beetles) in the order Coleoptera (beetles)

The delta flower scarab got its name from the bright yellow triangle on its pronotum (“delta” is the Greek letter that’s a triangle). The yellow marks resemble the patterning on several types of bees or wasps (which can sting), so it might help protect this beetle from predation.

Learn more about this and other scarab beetles on their group page.

Other Common Names
D Beetle
Where To Find


Delta flower scarab adults eat pollen, nectar, and/or other parts plants in the carrot, daisy, and mint families, including goldenrod, coneflower, rattlesnake master, and Queen Anne’s lace. The larvae live in rotting wood.

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About Land Invertebrates in Missouri
Invertebrates are animals without backbones, including earthworms, slugs, snails, and arthropods. Arthropods—invertebrates with “jointed legs” — are a group of invertebrates that includes crayfish, shrimp, millipedes, centipedes, mites, spiders, and insects. There may be as many as 10 million species of insects alive on earth today, and they probably constitute more than 90 percent all animal species.
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