About Tanystoma maculicolle (Dejean, 1828)
Tanystoma maculicolle is a species of beetle that belongs to the family Carabidae. This beetle is found in southern Oregon and across most of California, where it has been characterized as "extremely common". It has three recognized common names: tule beetle, overflow bug, and grease bug. It is particularly well-known in the agricultural regions of California's Central Valley, and it sometimes enters and invades human homes there.