Chrysopa nigricornis
In 3 days ~10% in a week ~20%
Chrysopa nigricornis is a species of green lacewing in the family Chrysopidae. It is found in Central America and North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Edmonton | 🇨🇦 Canada | |
| 3 | Denver | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Salt Lake City | 🇺🇸 United States | |
| 6 | Dallas | 🇺🇸 United States | |
| 7 | Toronto | 🇨🇦 Canada | |
| 8 | Boston | 🇺🇸 United States | |
| 9 | Chicago | 🇺🇸 United States | |
| 10 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Black-Horned Green Lacewing sighting in Washington on a given day, based on 52 verified sightings from GBIF citizen-science data. It is the 445th most-seen of the 1807 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.
May
In that month about 10% of wildlife watchers report a Black-Horned Green Lacewing in Washington on a given day, against under 5% in June to April, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Black-Horned Green Lacewing 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.
Among the best
Of the 10 cities where we can rate Black-Horned Green Lacewing sightings, Washington ranks 4th at under 5%, level with the leaders once rounded. The best odds are in Baltimore (United States, under 5%), Edmonton (Canada, under 5%) and Denver (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Black-Horned Green Lacewing is recorded against all the insects logged in Washington (52 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.
