Insects around San Francisco
San Francisco, California, United States
Every measure here is worked out per 5 degree square, so this covers the wider area around San Francisco (35° to 40° latitude, -125° to -120° longitude, about 550 km across), not the city alone. Counts are shares of all insects records in the same weeks, so busier stations do not inflate them (methods).
Arrived in the last four weeks
No insects arrived here in these weeks last year, as far as the records show.
Expected in the next six weeks
No arrivals expected here in the next six weeks, going by last year.
Dates are last year's first regular records after at least six weeks away, with each species' own uncertainty on its page. Each species page can email you when it turns up.
Most recorded, last eight weeks
| Species | Records | Per 1,000 |
|---|---|---|
| Snowy Tree Cricket Oecanthus fultoni | 21,993 | 967.0 |
| Honey Bee Apis mellifera | 47 | 2.1 |
| Ladybird Beetle Cycloneda sanguinea | 37 | 1.6 |
| Monarch Danaus plexippus | 25 | 1.1 |
| Fiery Skipper Hylephila phyleus | 25 | 1.1 |
| Common Checkered-skipper Burnsius communis | 23 | 1.0 |
| Convergent Lady Beetle Hippodamia convergens | 22 | 1.0 |
| Junonia grisea Junonia grisea | 22 | 1.0 |
| Gulf Fritillary Dione vanillae | 22 | 1.0 |
| Dark-bordered Granite Digrammia neptaria | 21 | 0.9 |
| Umber Skipper Lon melane | 19 | 0.8 |
| Gray Hairstreak Strymon melinus | 19 | 0.8 |
| Variegated Meadowhawk Sympetrum corruptum | 17 | 0.7 |
| Five-spotted Lady Beetle Hippodamia quinquesignata | 16 | 0.7 |
| Syrphid Fly Toxomerus marginatus | 15 | 0.7 |
How well this area is covered
Watched in 12 of the last 12 weeks for insects (enough records to count; unwatched weeks say nothing about absence). Active stations here in the last 30 days: 398 BirdWeather. Add a station to fill the gap.