Cyclocephala hirta
In 3 days ~10% in a week ~20%
Cyclocephala hirta is a species in the family Scarabaeidae ("scarab beetles"), in the order Coleoptera ("beetles"). C. hirta and cousin Cyclocephala pasadenae are among the most common "June beetles" found in the Los Angeles Basin. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mesa | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Western Masked Chafer sighting in Mesa on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 205th most-seen of the 232 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 and June
In those months about 10% of wildlife watchers report a Western Masked Chafer in Mesa on a given day, against under 5% in July to April, the lowest months. Those are among Mesa's driest months, with almost no rain against 35 mm in January.
Only Mesa, in our data
Mesa is the only city on Wallace's Line with enough records to rate Western Masked Chafer sightings: under 5% of wildlife watchers there report one on a given day.
Same genus: Cyclocephala
The closest relatives of the Western Masked Chafer that you can see in Mesa (genus Cyclocephala, Masked Chafers) are Cyclocephala longula (about 10%) and Southern Masked Chafer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Masked Chafer is recorded against all the insects logged in Mesa (6 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.
