Allograpta obliqua
In 3 days ~30% in a week ~60%
Allograpta obliqua is a common North American species of hoverfly, commonly known as oblique streaktail. The larvae are important predators of aphids while adults are pollinators. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Channel Islands National Park | 🇺🇸 United States | |
| 3 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 4 | Point Pelee National Park | 🇨🇦 Canada | |
| 5 | Acadia National Park | 🇺🇸 United States | |
| 6 | Big Bend National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sacramento | 🇺🇸 United States | |
| 2 | San Diego | 🇺🇸 United States | |
| 3 | Los Angeles | 🇺🇸 United States | |
| 4 | San Francisco | 🇺🇸 United States | |
| 5 | Boston | 🇺🇸 United States | |
| 6 | Austin | 🇺🇸 United States | |
| 7 | Dallas | 🇺🇸 United States | |
| 8 | Houston | 🇺🇸 United States | |
| 9 | San Antonio | 🇺🇸 United States | |
| 10 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Oblique Streaktail sighting in Los Angeles on a given day, based on 1,217 verified sightings from GBIF citizen-science data. It is the 25th most-seen of the 851 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
April to June
In those months about 20% of wildlife watchers report an Oblique Streaktail in Los Angeles on a given day, against about 10% in July to March, the lowest months. Those are among Los Angeles's driest months, with about 10 mm of rain a month against 75 mm in February.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Oblique Streaktail sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 25
Of the 25 cities where we can rate Oblique Streaktail sightings, Los Angeles ranks 3rd at about 10%. The best odds are in Sacramento (United States, about 20%) and San Diego (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Oblique Streaktail is recorded against all the insects logged in Los Angeles (1,217 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.
