Appearance
"G. bicolor" is generally about 17.0-22.5 mm in length. It is large and elongated, with a bicolor scheme. The head is narrow and smaller than the body. The elytra is black, and ridged, with setae over the basal third. Its antennae are pale and somewhat wider than the rest at the base. Pronotum red.Behavior
"G. bicolor" can be found under bark year-round. The larvae resemble the larvae of actual bombardier beetles to an extent. Not much is known about them. Though they are not bombardier beetles themselves, they can still emit a foul odor. Females produce purse-shaped mud cells under leaves. Eggs are laid here. They are fond of moist areas, which can include woodlands, meadows, and backyards. They are usually encountered either dead or under leaf litter or a rock or log. In the wild, they can live about 1-2 years. They are most active from February-November. They eat insects as larvae and adults, and are mainly hunted by birds.References:
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