Sehirus cinctus
In 3 days ~10% in a week ~30%
Sehirus cinctus, also known as the white-margined burrower bug, is within the genus of burrowing bugs belonging to the family Cydnidae, subfamily Sehirinae. Belonging to the suborder Heteroptera, they are true bugs. They feed on plants in the Urticaceae (nettle) and Lamiaceae (mint) families. These bugs are somewhat unusual in that they exhibit brooding behavior. The female deposits eggs, about 120–150, in shallow burrows and watches over them. After the young hatch, the mother will bring food to them in the burrow for 1–3 days, after which the young will leave and forage on their own. Females can have up to two broods, and parental care is initiated from chemical cues in the eggs. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Dallas | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Austin | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 6 | Edmonton | 🇨🇦 Canada | |
| 7 | San Antonio | 🇺🇸 United States | |
| 8 | Philadelphia | 🇺🇸 United States | |
| 9 | Montreal | 🇨🇦 Canada | |
| 10 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a White-Margined Burrowing Bug sighting in Philadelphia on a given day, based on 27 verified sightings from GBIF citizen-science data. It is the 192nd most-seen of the 632 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April and June
In those months about 10% of wildlife watchers report a White-Margined Burrowing Bug in Philadelphia on a given day, against under 5% in May and July–March, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most White-Margined Burrowing Bug sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
8th of 16
Of the 16 cities where we can rate White-Margined Burrowing Bug sightings, Philadelphia ranks 8th at under 5%. The best odds are in Dallas (United States, about 10%), Baltimore (United States, about 10%) and Austin (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the White-Margined Burrowing Bug is recorded against all the insects logged in Philadelphia (27 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.
