Velarifictorus micado
In 3 days ~20% in a week ~40%
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.
With luck
About 10% of wildlife watchers report a Japanese Burrowing Cricket sighting in Nanjing on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 132nd most-seen of the 272 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Japanese Burrowing Cricket in Nanjing on a given day, against under 5% in October to June, the lowest months. That is one of Nanjing's wettest months, with about 160 mm of rain against 40 mm in December.
5th of 17
Of the 17 cities where we can rate Japanese Burrowing Cricket sightings, Nanjing ranks 5th at about 10%. The best odds are in Shenyang (China, about 30%), Nagoya (Japan, about 20%) and Beijing (China, about 10%).
Same family: Gryllidae
The closest relatives of the Japanese Burrowing Cricket that you can see in Nanjing (family Gryllidae, True Crickets) are Green Tree Cricket (about 20%), Loxoblemmus equestris (about 10%) and Japanese Pine Cricket (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Japanese Burrowing Cricket is recorded against all the insects logged in Nanjing (13 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.
