Dark Wood Cockroach

Dark Wood Cockroach

Ischnoptera deropeltiformis

Daily sighting probability <5% · Rare
at Washington

In 3 days ~10% in a week ~20%

16 Verified sightings at Washington
5 In 1 park From 2019 to 2026
January Best month
🌙 Nocturnal When it's spotted

About the Dark Wood Cockroach

Ischnoptera deropeltiformis, the dark wood roach, is a species of wood cockroach (family Ectobiidae) native to the United States. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Everglades National Park 🇺🇸 United States
<5%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Washington 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Dark Wood Cockroach in Washington?

Rare

Under 5% of wildlife watchers report a Dark Wood Cockroach sighting in Washington on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 920th most-seen of the 1807 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.

When is the best time to see a Dark Wood Cockroach in Washington?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Dark Wood Cockroach in Washington on a given day, so our monthly data shows no clear season.

What time of day is best to see a Dark Wood Cockroach?

Between 2 and 5 am

Across all the parks we cover, that three-hour window holds the most Dark Wood Cockroach sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.

Where else can you see a Dark Wood Cockroach?

Only Washington, in our data

Washington is the only city on Wallace's Line with enough records to rate Dark Wood Cockroach sightings: under 5% of wildlife watchers there report one on a given day.

Where does the Dark Wood Cockroach sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Dark Wood Cockroach is recorded against all the insects logged in Washington (16 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.

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