Velarifictorus micado
In 3 days ~10% in a week ~30%
Velarifictorus micado, the Japanese burrowing cricket, is a cricket in the subfamily Gryllinae (family Gryllidae). It is found in southern Asia, along with an introduced population in the United States. It was first reported in the US in 1959, likely as overwintering eggs in the soil of imported plants, and has since spread all throughout the eastern half of the country. V. micado is considered to be quite passive and non-destructive. Studies have shown that its range has spread northward and may be much more invasive than previously thought. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Japanese Burrowing Cricket sighting in Philadelphia on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 222nd most-seen of the 632 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
August to October
In those months about 10% of wildlife watchers report a Japanese Burrowing Cricket in Philadelphia on a given day, against under 5% in November to July, the lowest months.
12th of 17
Of the 17 cities where we can rate Japanese Burrowing Cricket sightings, Philadelphia ranks 12th at under 5%. The best odds are in Shenyang (China, about 30%), Nagoya (Japan, about 20%) and Beijing (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Japanese Burrowing Cricket is recorded against all the insects logged in Philadelphia (25 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.
