Stiretrus anchorago
In 3 days ~10% in a week ~20%
Stiretrus anchorago, commonly known as the anchor stink bug, is a species of predatory stink bug in the family Pentatomidae. It is found in Central America and North America. It is known to prey upon Epilachna varivestis and Hypera postica. Markings on this species are highly variable.
Stiretrus anchorago violaceus (Say, 1828) i c g Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Houston | 🇺🇸 United States | |
| 3 | Miami | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Anchor Stink Bug sighting in Boston on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 640th most-seen of the 1200 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
August
In that month about 10% of wildlife watchers report an Anchor Stink Bug in Boston on a given day, against under 5% in September to July, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Anchor Stink Bug sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 cities where we can rate Anchor Stink Bug sightings, Boston has the highest daily chance: under 5%. Next come Houston (United States, under 5%) and Miami (United States, under 5%).
Same family: Pentatomidae
The closest relatives of the Anchor Stink Bug that you can see in Boston (family Pentatomidae, Stink Bugs) are Brown Marmorated Stink Bug (about 10%), Green Stink Bug (about 10%) and Twice-Stabbed Stink Bug (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Anchor Stink Bug is recorded against all the insects logged in Boston (13 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
