Seed Bugs

Small Milkweed Bug Large Milkweed Bug Large Milkweed Bug Large Milkweed Bug

What are they?

This is a rather variable group of insects which makes them diffult to sum up readily. Most species are somewhat almond-shaped in outline and most suck sap from seeds and seed pods. Some species suck sap from plant stems, while others even have predatory tendencies. Many species are colonial, especially during the nymph stages and can often be found in clustered gatherings at favored feeding locations.

Identification

Many of the common species are identifiable by the colors and patterning on the wings.



Small Milkweed Bug      Lygaeus kalmii

A widespread species but usually only found in small numbers. Nymphs feed habitually on milkweed plants, but adults may range widely, feeding on flower nectar and predating smaller insects. Note the heart-shaped black patch on the back, which identifies this species from the Large Milkweed Bug.
Small Milkweed Bug Small Milkweed Bug
Adult
Adult

Large Milkweed Bug      Oncopeltus fasciatus

A common species often found in large numbers on Common Milkweed. At all life stages, this species is easily identified by its bright red-orange and black pattern.
Large Milkweed Bug Large Milkweed Bug Large Milkweed Bug
Early stage nymphs
Later stage nymphs
Adult

Eastern Boxelder Bug      Boisea trivittata

A common species, most often seen in late fall when large numbers of adults may enter houses, seeking places to hibernate. Feeds on the seeds and leaves of various species of maple trees.
Eastern Boxelder Bug Eastern Boxelder Bug
Adult
Adult