Gazoryctra mathewi
In 3 days ~20% in a week ~40%
Gazoryctra mathewi, or Mathew's ghost moth, is a moth of the family Hepialidae. It is known from western North America, including British Columbia, Washington and California. It has a wingspan of 34 mm. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pacific Rim National Park Reserve | 🇨🇦 Canada |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Mathew's Ghost Moth sighting in Pacific Rim National Park Reserve on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 71st most-seen of the 107 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Mathew's Ghost Moth in Pacific Rim National Park Reserve on a given day, against under 5% in October to June, the lowest months. That is one of Pacific Rim National Park Reserve's driest months, with about 70 mm of rain against 470 mm in November.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Mathew's Ghost Moth sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Pacific Rim National Park Reserve, in our data
Pacific Rim National Park Reserve is the only park on Wallace's Line with enough records to rate Mathew's Ghost Moth sightings: about 10% of wildlife watchers there report one on a given day.
Same order: Lepidoptera
The closest relatives of the Mathew's Ghost Moth that you can see in Pacific Rim National Park Reserve (order Lepidoptera, Butterflies and Moths) are Gaultheria Leafminer Moth (about 20%), Spotted Tussock Moth (about 20%) and Lorquin's Admiral (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mathew's Ghost Moth is recorded against all the insects logged in Pacific Rim National Park Reserve (7 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.
