Western Drywood Termite

Western Drywood Termite

Incisitermes minor

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

In 3 days ~10% in a week ~30%

117 Verified sightings at San Diego
September Best month

About the Western Drywood Termite

Incisitermes minor is a species of termite in the family Kalotermitidae known commonly as the western drywood termite. It is native to western North America, including the western United States and northern Mexico. It has been found in many other parts of the United States, all the way to the East Coast. It has been reported from Toronto. It has been introduced to Hawaii. It has been noted in China and it is not uncommon in Japan. This is an economically important pest of wooden structures, including houses. In California and Arizona alone its economic impact is estimated to be about $250 million per year.

Within a single colony there are three types of termites, the alates, soldier, and worker. This eusocial species is a dark brown color and has an orange head. The colonies are most active during the spring and summer, preferring to be active in higher temperatures.

There are three types of termites within the colony: the alate (swarmer), the soldier and the worker. Alates have an orange-brown head and pronotum, an 11–12.5 mm long, dark brown abdomen. This is the only caste that leaves the colony, which happens when they seek a mate. If they are successful, they will... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Tijuana 🇲🇽 México
~10%
2 San Diego 🇺🇸 United States
~10%
3 Los Angeles 🇺🇸 United States
<5%
4 San Francisco 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Western Drywood Termite in San Diego?

With luck

About 10% of wildlife watchers report a Western Drywood Termite sighting in San Diego on a given day, based on 117 verified sightings from GBIF citizen-science data. It is the 91st most-seen of the 693 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Western Drywood Termite in San Diego?

August to October

In those months about 10% of wildlife watchers report a Western Drywood Termite in San Diego on a given day, against under 5% in November to July, the lowest months. Those are among San Diego's driest months, with about 10 mm of rain a month against 55 mm in February.

Is San Diego the best place to see a Western Drywood Termite?

Among the best

Of the 4 cities where we can rate Western Drywood Termite sightings, San Diego ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Tijuana (México, about 10%).

Where does the Western Drywood Termite sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Western Drywood Termite is recorded against all the insects logged in San Diego (117 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.

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