Entoma
Goldenrod soldier beetle, Chauliognathus pensylvanicus, plate

Soldier beetles

Chauliognathus pensylvanicus

Goldenrod soldier beetle

Adults gather on goldenrod to feed and mate each fall, while a near-identical relative with a solid black pronotum band instead of a spot flies earlier, in spring.

WhereFields, meadows and goldenrod patches
Size9 to 16 mm body length
WhenJuly to October

The Goldenrod soldier beetle has soft, leathery, burnt orange wing covers tipped with black and a single black spot in the center of the pronotum, unlike the similar Margined leatherwing, which shows a solid black band across the pronotum instead of a spot.

Adults gather on goldenrod flowers to feed and mate in late summer and early fall, while both adults and their larvae prey on aphids, caterpillars and other soft-bodied insects in gardens and fields.

Traits

Habitat

Grassland

Colour

Orange, Yellow, Black

Active

Day

To people

Not considered a threat to humans; adults do not bite or sting, and both larvae and adults help control garden pests like aphids and caterpillars.

Activity through the year

Often confused with

Chauliognathus marginatus

It has a solid black band across the pronotum instead of a single dark spot, and it flies earlier in the year, in spring, rather than in late summer and fall.

Questions

Is the Goldenrod soldier beetle dangerous to people?

Not considered a threat to humans; adults do not bite or sting, and both larvae and adults help control garden pests like aphids and caterpillars.

When can you see the Goldenrod soldier beetle?

The Goldenrod soldier beetle can be seen from July to October, by day.

Plate retouched from a photo by aster-asti, CC0, iNaturalist Licence

Report a mistake in this entry

Beetles›Soldier beetles›Chauliognathus

Last updated 2026-09-26. Every entry is checked against published sources.