Marine Blue
Daily sighting probability ~10% · With luck
at San Diego

In 3 days ~40% in a week ~60%

799 Verified sightings at San Diego
713 In all 11 parks From 2019 to 2026
July Best month
☀️ Diurnal When it's spotted

About the Marine Blue

Leptotes marina, the marine blue or striped blue, is a butterfly of the family Lycaenidae. It is found in North America and Central America. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Big Bend National Park 🇺🇸 United States
~30%
2 Saguaro National Park 🇺🇸 United States
~20%
3 Joshua Tree National Park 🇺🇸 United States
~20%
4 Guadalupe Mountains National Park 🇺🇸 United States
~20%
5 Channel Islands National Park 🇺🇸 United States
~20%
6 Grand Canyon National Park 🇺🇸 United States
~20%
7 Death Valley National Park 🇺🇸 United States
~10%
8 Bahía de Loreto National Park 🇲🇽 Mexico
~10%
9 Zion National Park 🇺🇸 United States
~10%
10 Sequoia and Kings Canyon National Parks 🇺🇸 United States
~10%
11 Cumbres de Monterrey National Park 🇲🇽 Mexico
~10%

Cities Where Found

# City Country Daily sighting probability
1 Ciudad Juárez 🇲🇽 México
~20%
2 Mesa 🇺🇸 United States
~20%
3 Mexico City 🇲🇽 México
~10%
4 San Diego 🇺🇸 United States
~10%
5 Phoenix 🇺🇸 United States
~10%
6 Los Angeles 🇺🇸 United States
~10%
7 Tijuana 🇲🇽 México
~10%
8 Puebla 🇲🇽 México
~10%
9 Toluca 🇲🇽 México
~10%
10 Torreón 🇲🇽 México
~10%

Before you go

What are the chances of seeing a Marine Blue in San Diego?

With luck

About 10% of wildlife watchers report a Marine Blue sighting in San Diego on a given day, based on 799 verified sightings from GBIF citizen-science data. It is the 15th most-seen of the 693 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 60%, if each day is a fresh chance.

When is the best time to see a Marine Blue in San Diego?

June to September

In those months about 20% of wildlife watchers report a Marine Blue in San Diego on a given day, against under 5% in February, the lowest month. Those are among San Diego's driest months, with about 5 mm of rain a month against 55 mm in February.

What time of day is best to see a Marine Blue?

Between 11 am and 2 pm

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

Is San Diego the best place to see a Marine Blue?

4th of 20

Of the 20 cities where we can rate Marine Blue sightings, San Diego ranks 4th at about 10%. The best odds are in Ciudad Juárez (México, about 20%), Mesa (United States, about 20%) and Mexico City (México, about 10%).

Which relatives of the Marine Blue live in San Diego?

Same family: Lycaenidae

The closest relatives of the Marine Blue that you can see in San Diego (family Lycaenidae, Gossamer-winged Butterflies) are Gray Hairstreak (about 10%) and Western Pygmy-Blue (about 10%), with each one's daily chance of a sighting.

Where does the Marine Blue sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Marine Blue is recorded against all the insects logged in San Diego (799 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.

← Back to San Diego