Bug FAQPiezogaster calcarator
Piezogaster calcarator · Order: Hemiptera · Family: Coreidae
Piezogaster calcarator has brownish-grey (fuscous) thighs and a black abdominal margin marked with five white spots. The insect is spiny, its head is blunt rather than pointed, and the abdomen shows the described coloration.
Source: Wikipedia
How to recognize it
The thighs are brownish-grey. The abdomen edge is black and bears five white spots. The body is covered in spines and the head is blunt, not pointed.
Source: Wikipedia
Where it is found in the US
Recorded in 31 of 51 states and DC. Most records: Ohio, North Carolina, Maryland, Virginia, Pennsylvania, Illinois, Kentucky, Wisconsin.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
What does Piezogaster calcarator look like?
It has brownish-grey thighs, a black abdominal margin with five white spots, a spiny body, and a blunt head.
Source: Wikipedia
Same family (Coreidae)
Western Conifer Seed BugLeptoglossus occidentalisDamages trees, gardens or crops
Squash BugAnasa tristisDamages trees, gardens or crops
Dock BugCoreus marginatus
Acanthocephala terminalisAcanthocephala terminalisHarmless
Eastern Leaf-footed BugLeptoglossus phyllopusDamages trees, gardens or crops
Giant leaf-footed bugAcanthocephala declivisSources
- Wikipedia: https://en.wikipedia.org/wiki/Piezogaster_calcarator
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.