Liometopum luctuosum
In 3 days ~20% in a week ~30%
Liometopum luctuosum is a species of ant in the subfamily Dolichoderinae. Liometopum luctuosum is often mistaken for carpenter ants (Camponotus spp.) by homeowners and pest management professionals. This mistaken identity is due to morphological and behavioral characteristics they share with carpenter ants; namely polymorphic workers, a smooth convex thoracic profile, and the tendency to excavate wood. L. luctuosum are also often confused with Tapinoma sessile since they have the same coloration, are similar in size, and produce an alarm pheromone with a very similar odor. Consequently, their importance as structural pests may be greatly under reported, especially in California, Oregon, and Washington, United States.
Creighton (1950) reclassified it as a subspecies of Liometopum occidentale. Liometopum luctuosum has been reported at elevations as low as 59 m, but is typically found at elevations... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Grand Canyon National Park | 🇺🇸 United States | |
| 2 | Big Bend National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Liometopum luctuosum sighting in Big Bend National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 255th most-seen of the 329 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
January, April–May and October
In those months about 10% of wildlife watchers report a Liometopum luctuosum in Big Bend National Park on a given day, against under 5% in February–March, June–September and November–December, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Liometopum luctuosum sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Liometopum luctuosum sightings, Big Bend National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Grand Canyon National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Liometopum luctuosum is recorded against all the insects logged in Big Bend National Park (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.
