Mormon Tea Stem Gall Midge

Mormon Tea Stem Gall Midge

Lasioptera ephedrae

Daily sighting probability ~10% · With luck
at Joshua Tree National Park

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

17 Verified sightings at Joshua Tree National Park From 2019 to 2026
17 In 1 park
December Best month
☀️ Diurnal When it's spotted

About the Mormon Tea Stem Gall Midge

Lasioptera ephedrae is a species of gall midges in the family Cecidomyiidae. It forms galls on Ephedra trifurca stems. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Joshua Tree National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Mormon Tea Stem Gall Midge in Joshua Tree National Park?

With luck

About 10% of wildlife watchers report a Mormon Tea Stem Gall Midge sighting in Joshua Tree National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 82nd most-seen of the 190 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 Mormon Tea Stem Gall Midge in Joshua Tree National Park?

February–April, August and October–December

In those months about 10% of wildlife watchers report a Mormon Tea Stem Gall Midge in Joshua Tree National Park on a given day, against under 5% in January, May–July and September, the lowest months.

What time of day is best to see a Mormon Tea Stem Gall Midge?

Between 10 am and 1 pm

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

Where else can you see a Mormon Tea Stem Gall Midge?

Only Joshua Tree National Park, in our data

Joshua Tree National Park is the only park on Wallace's Line with enough records to rate Mormon Tea Stem Gall Midge sightings: about 10% of wildlife watchers there report one on a given day.

Which relatives of the Mormon Tea Stem Gall Midge live in Joshua Tree National Park?

Same family: Cecidomyiidae

The closest relatives of the Mormon Tea Stem Gall Midge that you can see in Joshua Tree National Park (family Cecidomyiidae, Gall and Forest Midges) are Large Creosote Gall Midge (about 40%), Creosote Cone Gall Midge (about 10%) and Juniper Urn Gall Midge (about 10%), with each one's daily chance of a sighting.

Where does the Mormon Tea Stem Gall Midge sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Mormon Tea Stem Gall Midge is recorded against all the insects logged in Joshua Tree National Park (17 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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