Timandra amaturaria
In 3 days ~10% in a week ~20%
Timandra amaturaria, the cross-lined wave moth or cobra inchworm, is a species of moth of the family Geometridae. The species was first described by Francis Walker in 1866. It is found in the US from Massachusetts to Florida, west to Texas and north to Wisconsin.
The wingspan is 20–28 mm. Adults have hooked forewings. The hindwings are pointed. Adults are on wing from May to September. The larvae feed on some species of Polygonum and Rumex. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Houston | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Cross-Lined Wave sighting in Houston on a given day, based on 15 verified sightings from GBIF citizen-science data. It is the 557th most-seen of the 1057 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.
August
In that month about 10% of wildlife watchers report a Cross-Lined Wave in Houston on a given day, against under 5% in September to July, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Cross-Lined Wave sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Houston, in our data
Houston is the only city on Wallace's Line with enough records to rate Cross-Lined Wave sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Cross-Lined Wave that you can see in Houston (family Geometridae, Geometer Moths) are Pannaria Wave (about 10%), White-Tipped Black (about 10%) and Southern Emerald (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cross-Lined Wave is recorded against all the insects logged in Houston (15 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.
