Sagebrush Medusa Gall Midge

Sagebrush Medusa Gall Midge

Rhopalomyia medusa

Daily sighting probability ~10% · With luck
at Grand Teton National Park

In 3 days ~20% in a week ~40%

9 Verified sightings at Grand Teton National Park From 2019 to 2026
14 In all 2 parks
October Best month
☀️ Diurnal When it's spotted

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Grand Teton National Park 🇺🇸 United States
~10%
2 Yellowstone National Park 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Sagebrush Medusa Gall Midge in Grand Teton National Park?

With luck

About 10% of wildlife watchers report a Sagebrush Medusa Gall Midge sighting in Grand Teton National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 92nd most-seen of the 140 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.

When is the best time to see a Sagebrush Medusa Gall Midge in Grand Teton National Park?

May–July and October

In those months about 10% of wildlife watchers report a Sagebrush Medusa Gall Midge in Grand Teton National Park on a given day, against under 5% in August–September and November–April, the lowest months.

What time of day is best to see a Sagebrush Medusa Gall Midge?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Sagebrush Medusa Gall Midge sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Is Grand Teton National Park the best place to see a Sagebrush Medusa Gall Midge?

Yes

Of the 2 parks where we can rate Sagebrush Medusa Gall Midge sightings, Grand Teton National Park has the highest daily chance: about 10%. Next come Yellowstone National Park (United States, under 5%).

Where does the Sagebrush Medusa Gall Midge sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Sagebrush Medusa Gall Midge is recorded against all the insects logged in Grand Teton National Park (9 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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