Ctenucha venosa
In 3 days ~10% in a week ~20%
Ctenucha venosa, the veined ctenucha moth, is a moth of the family Erebidae. It was described by Francis Walker in 1854. It is found in the US from southern Nevada and Arizona to Colorado, Kansas, Oklahoma and Texas, as well as in Mexico, Guatemala, Panama and Venezuela.
The length of the forewings is 14–16 mm. There are several generations per year with adults on wing from April to November. The larvae feed on various plants, including grasses. Notably, Bouteloua curtipendula (Sideoats grama). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Saguaro National Park | 🇺🇸 United States |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Veined Ctenucha Moth sighting in Saguaro National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 248th most-seen of the 354 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
September and November
In those months about 10% of wildlife watchers report a Veined Ctenucha Moth in Saguaro National Park on a given day, against under 5% in October and December–August, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Veined Ctenucha Moth sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Saguaro National Park, in our data
Saguaro National Park is the only park on Wallace's Line with enough records to rate Veined Ctenucha Moth sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Erebidae
The closest relatives of the Veined Ctenucha Moth that you can see in Saguaro National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Black Witch (about 10%), Merry Graphic Moth (about 10%) and Bird Toxonprucha (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Veined Ctenucha Moth is recorded against all the insects logged in Saguaro National Park (6 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.
