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 →
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Rare
Under 5% of wildlife watchers report a Japanese Burrowing Cricket sighting in Boston on a given day, based on 44 verified sightings from GBIF citizen-science data. It is the 350th most-seen of the 1200 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.
September and October
In those months about 10% of wildlife watchers report a Japanese Burrowing Cricket in Boston on a given day, against under 5% in November to August, the lowest months.
13th of 17
Of the 17 cities where we can rate Japanese Burrowing Cricket sightings, Boston ranks 13th at under 5%. 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 Boston (family Gryllidae, True Crickets) are Jumping Bush Cricket (about 10%) and Narrow-Winged Tree 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 Boston (44 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.
