Papilio zelicaon
In 3 days ~20% in a week ~40%
Papilio zelicaon, the Anise Swallowtail, is a common swallowtail butterfly of western North America. Both the upper and lower sides of its wings are black, but the upper wing has a broad yellow stripe across it, giving the butterfly an overall yellow appearance. There are striking blue spots on the rear edge of the rear wing, and the characteristic tails of the swallowtails. Its wingspan is 52–80 mm (2.0–3.1 in). Its body is somewhat shorter than the rather similar western tiger swallowtail, with which its range overlaps; it also lacks the black stripes, converging toward the tail, of the latter. There is a somewhat darker subspecies, P. z. nitra, which is rare throughout the range, though somewhat more often found at lower elevations.
The anise swallowtail has a wingspan ranging from 52 to 80 mm (2.0 to 3.1 in). Wings are mostly yellow, with black bands along the edges of both the forewings and hindwings. They are distinguished from tiger swallowtail butterflies by being smaller in size and lacking the vertical black striping patterns. There are yellowish-orange to red eyespots near the tails of each wing, each containing a black pupil. The body is predominantly black... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Glacier National Park | 🇺🇸 United States | |
| 2 | Grand Teton National Park | 🇺🇸 United States | |
| 3 | Channel Islands National Park | 🇺🇸 United States | |
| 4 | Olympic National Park | 🇺🇸 United States | |
| 5 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 6 | Yosemite National Park | 🇺🇸 United States | |
| 7 | Yellowstone National Park | 🇺🇸 United States | |
| 8 | Rocky Mountain National Park | 🇺🇸 United States | |
| 9 | Great Bear Rainforest | 🇨🇦 Canada | |
| 10 | Death Valley National Park | 🇺🇸 United States | |
| 11 | Grand Canyon National Park | 🇺🇸 United States | |
| 12 | Pacific Rim National Park Reserve | 🇨🇦 Canada | |
| 13 | Banff National Park | 🇨🇦 Canada | |
| 14 | Jasper National Park | 🇨🇦 Canada |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Francisco | 🇺🇸 United States | |
| 2 | Tijuana | 🇲🇽 México | |
| 3 | San Diego | 🇺🇸 United States | |
| 4 | Sacramento | 🇺🇸 United States | |
| 5 | Los Angeles | 🇺🇸 United States | |
| 6 | Vancouver | 🇨🇦 Canada | |
| 7 | Portland | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Anise Swallowtail sighting in Sacramento on a given day, based on 59 verified sightings from GBIF citizen-science data. It is the 88th most-seen of the 386 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report an Anise Swallowtail in Sacramento on a given day, against under 5% in September to February, the lowest months. That is one of Sacramento's driest months, with about 5 mm of rain against 120 mm in December.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Anise Swallowtail sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 7
Of the 7 cities where we can rate Anise Swallowtail sightings, Sacramento ranks 4th at about 10%. The best odds are in San Francisco (United States, about 20%), Tijuana (México, about 20%) and San Diego (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Anise Swallowtail is recorded against all the insects logged in Sacramento (59 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.
