Brindled Gray

Brindled Gray

Parapheromia cassinoi

Daily sighting probability ~10% · With luck
at Big Bend National Park

In 3 days ~20% in a week ~30%

13 Verified sightings at Big Bend National Park From 2019 to 2026
13 In 1 park
September Best month
🌙 Nocturnal When it's spotted

About the Brindled Gray

Parapheromia cassinoi is a species of geometrid moth in the family Geometridae. It is found in North America. The MONA or Hodges number for Parapheromia cassinoi is 6608. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Big Bend National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Brindled Gray in Big Bend National Park?

With luck

About 10% of wildlife watchers report a Brindled Gray sighting in Big Bend National Park on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 221st most-seen of the 329 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Brindled Gray in Big Bend National Park?

September

In that month about 30% of wildlife watchers report a Brindled Gray in Big Bend National Park on a given day, against under 5% in October to August, the lowest months. That is one of Big Bend National Park's wettest months, with about 50 mm of rain against 10 mm in April.

What time of day is best to see a Brindled Gray?

Between midnight and 3 am

Across all the parks we cover, that three-hour window holds the most Brindled Gray sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.

Where else can you see a Brindled Gray?

Only Big Bend National Park, in our data

Big Bend National Park is the only park on Wallace's Line with enough records to rate Brindled Gray sightings: about 10% of wildlife watchers there report one on a given day.

Which relatives of the Brindled Gray live in Big Bend National Park?

Same family: Geometridae

The closest relatives of the Brindled Gray that you can see in Big Bend National Park (family Geometridae, Geometer Moths) are Dwarf Tawny Wave (about 10%), Bicolored Chloraspilates Moth (about 10%) and Idaea gemmata (about 10%), with each one's daily chance of a sighting.

Where does the Brindled Gray sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Brindled Gray is recorded against all the insects logged in Big Bend National Park (13 verified sightings from 2019 to 2026), 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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