Soldier Beetle

*Chauliognathus pennsylvanicus*

Content coming soon for this insect guide.

Insect Profile

Beneficial Rating

+4 Beneficial

Active Months

JanFebMarAprMayJunJulAugSepOctNovDec

US Distribution

NortheastSoutheastMidwest

Habitat Preferences

gardensmeadowsforest edgesopen fieldsprairiesgrasslands

Taxonomic Group

Beetle

Order

Coleoptera

Family

Cantharidae

Lifecycle

The soldier beetle undergoes complete metamorphosis with four life stages: egg, larva, pupa, and adult. Females lay their eggs in the soil. The larvae, which are flattened and dark-colored, hatch in the spring and are active in damp areas such as leaf litter, under rocks, and in loose soil, where they prey on other insects. The larvae overwinter in the soil and pupate in the spring or early summer. Adults emerge from late spring to mid-summer and are active until early fall. There can be one to two generations per year depending on the climate.

Overwintering Strategy

Larvae overwinter in the soil, leaf litter, and under bark.

Native Range

Eastern North America

Attracted By

yarrowdillfennelwhite flowersgoldenrodmilkweedwild lettucehydrangeacatnipcosmosmoist habitats

Companion Planting

To attract and support soldier beetles, it is beneficial to plant a diversity of flowering plants that bloom throughout the season. They are particularly attracted to flowers in the sunflower (Asteraceae) and umbel (Apiaceae) families. Good companion plants include yarrow, cosmos, fennel, and goldenrod. Leaving some wild weeds like wild lettuce and milkweed can also be beneficial. It is also important to provide a source of water and maintain some permanent plantings with undisturbed, mulched soil to provide a safe place for the larvae to pupate.